WaterSteamPro Custom Units functions

    Common

    Common functions which is recommended to use.

  1. Surface tension [unit type: surface tension, unit id = 14, dimension in SI: N/m]:

    wcuSURFTENT(t)

    where:

    Based upon the IAPWS Release on The Surface Tension of Ordinary Water Substance 1995.

  2. Properties calculation result (specific volume v [unit type: specific volume, unit id = 4, dimension in SI: m3/kg], specific internal energy u [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg], specific entropy s [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], specific enthalpy h [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg], specific isochoric heat capacity Cv [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], sound velocity w [unit type: velocity, unit id = 7, dimension in SI: m/sec], derivate of specific volume on pressure with constant temperature DVDPt [unit type: DVDPt, unit id = 20, dimension in SI: m3/(kg·Pa)], derivate of specific internal energy on pressure with constant temperature DUDPt [unit type: DUDPt, unit id = 21, dimension in SI: J/(kg·Pa)], derivate of specific entropy on pressure with constant temperature DSDPt [unit type: DSDPt, unit id = 22, dimension in SI: J/(kg·K·Pa)], derivate of specific enthalpy on pressure with constant temperature DHDPt [unit type: DUDPt, unit id = 21, dimension in SI: J/(kg·Pa)], derivate of specific volume on temperature with constant pressure DVDTp [unit type: DVDTp, unit id = 23, dimension in SI: m3/(kg·K)], derivate of specific internal energy on temperature with constant pressure DUDTp [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], derivate of specific entropy on temperature with constant pressure DSDTp [unit type: DSDTp, unit id = 24, dimension in SI: J/(kg·K·K)], derivate of specific enthalpy on temperature with constant pressure DHDTp [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]):

    wcuVUSHCVWDERPTPT(p, t, *v, *u, *s, *h, *Cv, *w, *DVDPt, *DUDPt, *DSDPt, *DHDPt, *DVDTp, *DUDTp, *DSDTp, *DHDTp)

    where:

    This is common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREA2 is used to the determining of area. After that the necessary function (wcuVUSHDERPTxPT) is used. This function return the properties set, so it is significally increase calculation speed. In Mathcad this function depends upon only two arguments p and t, and return array of results in SI units system.

  3. Specific volume [unit type: specific volume, unit id = 4, dimension in SI: m3/kg]:

    wcuVPT(p, t)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREA2 is used to the determining of area. After that the necessary function (wcuVxPT) is used.

  4. Specific internal energy [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuUPT(p, t)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREA2 is used to the determining of area. After that the necessary function (wcuUxPT) is used.

  5. Specific entropy [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuSPT(p, t)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREA2 is used to the determining of area. After that the necessary function (wcuSxPT) is used.

  6. Specific enthalpy [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuHPT(p, t)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREA2 is used to the determining of area. After that the necessary function (wcuHxPT) is used.

  7. Specific isobaric heat capacity [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCPPT(p, t)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREA2 is used to the determining of area. After that the necessary function (wcuCPxPT) is used.

  8. Specific isochoric heat capacity [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCVPT(p, t)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREA2 is used to the determining of area. After that the necessary function (wcuCVxPT) is used.

  9. Sound velocity [unit type: velocity, unit id = 7, dimension in SI: m/sec]:

    wcuWPT(p, t)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREA2 is used to the determining of area. After that the necessary function (wcuWxPT) is used.

  10. Joule-Tompson coefficient [unit type: joule-tompson coefficient, unit id = 8, dimension in SI: K/Pa]:

    wcuJOULETHOMPSONPT(p, t)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREA2 is used to the determining of area. After that the necessary function (wcuJOULETHOMPSONxPT) is used.

  11. Thermal conductivity coefficient [unit type: thermal conductivity coefficient, unit id = 9, dimension in SI: W/(m·K)]:

    wcuTHERMCONDPT(p, t)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. For calculation used the function wcuTHERMCONDRT with density from the common function wcuVPT.

  12. Dynamic viscosity [unit type: dynamic viscosity, unit id = 10, dimension in SI: Pa·sec]:

    wcuDYNVISPT(p, t)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. For calculation used the function wcuDYNVISRT with density from the common function wcuVPT.

  13. Prandtl number [unit type: prandtl number, unit id = 11, dimension in SI: ]:

    wcuPRANDTLEPT(p, t)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. For calculation used the formula: Pr = DYNVIS · CP / THERMCOND, where DYNVIS calculated via the function wcuDYNVISPT, CP - via wcuCPPT and THERMCOND - via wcuTHERMCONDPT.

  14. Kinematic viscosity [unit type: kinematic viscosity, unit id = 12, dimension in SI: m2/sec]:

    wcuKINVISPT(p, t)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. For calculation used the formula: KINVIS = DYNVIS · V, where DYNVIS calculated via the function wcuDYNVISPT and V - via wcuVPT.

  15. Isoentropic exponent [unit type: isoentropic exponent, unit id = 13, dimension in SI: ]:

    wcuKPT(p, t)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. For calculation used the formula: K = W · W / (P · V), where W (sound velocity) calculated via the function wcuWPT, P - pressure and V (specific volume) - via wcuVPT.

  16. Specific volume [unit type: specific volume, unit id = 4, dimension in SI: m3/kg]:

    wcuVPTX(p, t, x)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREA is used to the determining of area. After that the necessary function (wcuVxPT or wcuVSTX) is used. If the area is not the double-phase area than the vapor fraction is ignored.

  17. Specific internal energy [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuUPTX(p, t, x)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREA is used to the determining of area. After that the necessary function (wcuUxPT or wcuUSTX) is used. If the area is not the double-phase area than the vapor fraction is ignored.

  18. Specific entropy [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuSPTX(p, t, x)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREA is used to the determining of area. After that the necessary function (wcuSxPT or wcuSSTX) is used. If the area is not the double-phase area than the vapor fraction is ignored.

  19. Specific enthalpy [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuHPTX(p, t, x)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREA is used to the determining of area. After that the necessary function (wcuHxPT or wcuHSTX) is used. If the area is not the double-phase area than the vapor fraction is ignored.

  20. Specific isobaric heat capacity [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCPPTX(p, t, x)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREA is used to the determining of area. After that the necessary function (wcuCPxPT or wcuCPSTX) is used. If the area is not the double-phase area than the vapor fraction is ignored.

  21. Specific isochoric heat capacity [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCVPTX(p, t, x)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREA is used to the determining of area. After that the necessary function (wcuCVxPT or wcuCVSTX) is used. If the area is not the double-phase area than the vapor fraction is ignored.

  22. Sound velocity [unit type: velocity, unit id = 7, dimension in SI: m/sec]:

    wcuWPTX(p, t, x)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREA is used to the determining of area. After that the necessary function (wcuWxPT or wcuWSTX) is used. If the area is not the double-phase area than the vapor fraction is ignored.

  23. Joule-Tompson coefficient [unit type: joule-tompson coefficient, unit id = 8, dimension in SI: K/Pa]:

    wcuJOULETHOMPSONPTX(p, t, x)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREA is used to the determining of area. After that the necessary function (wcuJOULETHOMPSONPT or wcuJOULETHOMPSONSTX) is used. If the area is not the double-phase area than the vapor fraction is ignored.

  24. Thermal conductivity coefficient [unit type: thermal conductivity coefficient, unit id = 9, dimension in SI: W/(m·K)]:

    wcuTHERMCONDPTX(p, t, x)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREA is used to the determining of area. After that the necessary function (wcuTHERMCONDPT or wcuTHERMCONDSTX) is used. If the area is not the double-phase area than the vapor fraction is ignored.

  25. Dynamic viscosity [unit type: dynamic viscosity, unit id = 10, dimension in SI: Pa·sec]:

    wcuDYNVISPTX(p, t, x)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREA is used to the determining of area. After that the necessary function (wcuDYNVISPT or wcuDYNVISSTX) is used. If the area is not the double-phase area than the vapor fraction is ignored.

  26. Prandtl number [unit type: prandtl number, unit id = 11, dimension in SI: ]:

    wcuPRANDTLEPTX(p, t, x)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREA is used to the determining of area. After that the necessary function (wcuPRANDTLEPPT or wcuPRANDTLEPSTX) is used. If the area is not the double-phase area than the vapor fraction is ignored.

  27. Kinematic viscosity [unit type: kinematic viscosity, unit id = 12, dimension in SI: m2/sec]:

    wcuKINVISPTX(p, t, x)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREA is used to the determining of area. After that the necessary function (wcuKINVISPT or wcuKINVISSTX) is used. If the area is not the double-phase area than the vapor fraction is ignored.

  28. Isoentropic exponent [unit type: isoentropic exponent, unit id = 13, dimension in SI: ]:

    wcuKPTX(p, t, x)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREA is used to the determining of area. After that the necessary function (wcuKPT or wcuKSTX) is used. If the area is not the double-phase area than the vapor fraction is ignored.

  29. Temperature [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuTPH(p, h)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPH is used to the determining of area. After that the necessary function (wcuTxPH) is used.

  30. Temperature [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuTPS(p, s)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPH is used to the determining of area. After that the necessary function (wcuTxPS) is used.

  31. Specific internal energy [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuUPH(p, h)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPH is used to the determining of area. After that the necessary function (wcuTxPH) is used. And the final step is calling the necessary function (wcuUxPT or wcuUSTX).

  32. Specific volume [unit type: specific volume, unit id = 4, dimension in SI: m3/kg]:

    wcuVPH(p, h)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPH is used to the determining of area. After that the necessary function (wcuTxPH) is used. And the final step is calling the necessary function (wcuVxPT or wcuVSTX).

  33. Specific entropy [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuSPH(p, h)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPH is used to the determining of area. After that the necessary function (wcuTxPH) is used. And the final step is calling the necessary function (wcuSxPT or wcuSSTX).

  34. Specific isobaric heat capacity [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCPPH(p, h)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPH is used to the determining of area. After that the necessary function (wcuTxPH) is used. And the final step is calling the necessary function (wcuCPxPT or wcuCPSTX).

  35. Specific isochoric heat capacity [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCVPH(p, h)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPH is used to the determining of area. After that the necessary function (wcuTxPH) is used. And the final step is calling the necessary function (wcuCVxPT or wcuCVSTX).

  36. Sound velocity [unit type: velocity, unit id = 7, dimension in SI: m/sec]:

    wcuWPH(p, h)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPH is used to the determining of area. After that the necessary function (wcuTxPH) is used. And the final step is calling the necessary function (wcuWxPT or wcuWSTX).

  37. Joule-Tompson coefficient [unit type: joule-tompson coefficient, unit id = 8, dimension in SI: K/Pa]:

    wcuJOULETHOMPSONPH(p, h)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPH is used to the determining of area. After that the necessary function (wcuTxPH) is used. And the final step is calling the necessary function (wcuJOULETHOMPSONPT or wcuJOULETHOMPSONSTX).

  38. Dynamic viscosity [unit type: dynamic viscosity, unit id = 10, dimension in SI: Pa·sec]:

    wcuDYNVISPH(p, h)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPH is used to the determining of area. After that the necessary function (wcuTxPH) is used. And the final step is calling the necessary function (wcuDYNVISPT or wcuDYNVISSTX).

  39. Kinematic viscosity [unit type: kinematic viscosity, unit id = 12, dimension in SI: m2/sec]:

    wcuKINVISPH(p, h)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPH is used to the determining of area. After that the necessary function (wcuTxPH) is used. And the final step is calling the necessary function (wcuKINVISPT or wcuKINVISSTX).

  40. Prandtl number [unit type: prandtl number, unit id = 11, dimension in SI: ]:

    wcuPRANDTLEPH(p, h)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPH is used to the determining of area. After that the necessary function (wcuTxPH) is used. And the final step is calling the necessary function (wcuPRANDTLEPT or wcuPRANDTLESTX).

  41. Isoentropic exponent [unit type: isoentropic exponent, unit id = 13, dimension in SI: ]:

    wcuKPH(p, h)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPH is used to the determining of area. After that the necessary function (wcuTxPH) is used. And the final step is calling the necessary function (wcuKPT or wcuKSTX).

  42. Thermal conductivity coefficient [unit type: thermal conductivity coefficient, unit id = 9, dimension in SI: W/(m·K)]:

    wcuTHERMCONDPH(p, h)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPH is used to the determining of area. After that the necessary function (wcuTxPH) is used. And the final step is calling the necessary function (wcuTHERMCONDPT or wcuTHERMCONDSTX).

  43. Specific internal energy [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuUPS(p, s)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPS is used to the determining of area. After that the necessary function (wcuTxPS) is used. And the final step is calling the necessary function (wcuUxPT or wcuUSTX).

  44. Specific volume [unit type: specific volume, unit id = 4, dimension in SI: m3/kg]:

    wcuVPS(p, s)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPS is used to the determining of area. After that the necessary function (wcuTxPS) is used. And the final step is calling the necessary function (wcuVxPT or wcuVSTX).

  45. Specific enthalpy [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuHPS(p, s)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPS is used to the determining of area. After that the necessary function (wcuTxPS) is used. And the final step is calling the necessary function (wcuHxPT or wcuHSTX).

  46. Specific isobaric heat capacity [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCPPS(p, s)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPS is used to the determining of area. After that the necessary function (wcuTxPS) is used. And the final step is calling the necessary function (wcuCPxPT or wcuCPSTX).

  47. Specific isochoric heat capacity [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCVPS(p, s)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPS is used to the determining of area. After that the necessary function (wcuTxPS) is used. And the final step is calling the necessary function (wcuCVxPT or wcuCVSTX).

  48. Sound velocity [unit type: velocity, unit id = 7, dimension in SI: m/sec]:

    wcuWPS(p, s)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPS is used to the determining of area. After that the necessary function (wcuTxPS) is used. And the final step is calling the necessary function (wcuWxPT or wcuWSTX).

  49. Joule-Tompson coefficient [unit type: joule-tompson coefficient, unit id = 8, dimension in SI: K/Pa]:

    wcuJOULETHOMPSONPS(p, s)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPH is used to the determining of area. After that the necessary function (wcuTxPS) is used. And the final step is calling the necessary function (wcuJOULETHOMPSONPT or wcuJOULETHOMPSONSTX).

  50. Dynamic viscosity [unit type: dynamic viscosity, unit id = 10, dimension in SI: Pa·sec]:

    wcuDYNVISPS(p, s)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPS is used to the determining of area. After that the necessary function (wcuTxPS) is used. And the final step is calling the necessary function (wcuDYNVISPT or wcuDYNVISSTX).

  51. Kinematic viscosity [unit type: kinematic viscosity, unit id = 12, dimension in SI: m2/sec]:

    wcuKINVISPS(p, s)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPS is used to the determining of area. After that the necessary function (wcuTxPS) is used. And the final step is calling the necessary function (wcuKINVISPT or wcuKINVISSTX).

  52. Prandtl number [unit type: prandtl number, unit id = 11, dimension in SI: ]:

    wcuPRANDTLEPS(p, s)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPS is used to the determining of area. After that the necessary function (wcuTxPS) is used. And the final step is calling the necessary function (wcuPRANDTLEPT or wcuPRANDLTESTX).

  53. Isoentropic exponent [unit type: isoentropic exponent, unit id = 13, dimension in SI: ]:

    wcuKPS(p, s)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPS is used to the determining of area. After that the necessary function (wcuTxPS) is used. And the final step is calling the necessary function (wcuKPT or wcuKSTX).

  54. Thermal conductivity coefficient [unit type: thermal conductivity coefficient, unit id = 9, dimension in SI: W/(m·K)]:

    wcuTHERMCONDPS(p, s)

    where:

    This is the common function. The arguments lies in all IF-97 parameters range. The function wcuWATERSTATEAREAPS is used to the determining of area. After that the necessary function (wcuTxPS) is used. And the final step is calling the necessary function (wcuTHERMCONDPT or wcuTHERMCONDSTX).

  55. Temperature [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuTEXPANSIONPTPEFF(p0, t0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  56. Specific volume [unit type: specific volume, unit id = 4, dimension in SI: m3/kg]:

    wcuVEXPANSIONPTPEFF(p0, t0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  57. Specific internal energy [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuUEXPANSIONPTPEFF(p0, t0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  58. Specific enthalpy [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuHEXPANSIONPTPEFF(p0, t0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  59. Specific entropy [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuSEXPANSIONPTPEFF(p0, t0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  60. Specific isobaric heat capacity [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCPEXPANSIONPTPEFF(p0, t0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  61. Specific isochoric heat capacity [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCVEXPANSIONPTPEFF(p0, t0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  62. Sound velocity [unit type: velocity, unit id = 7, dimension in SI: m/sec]:

    wcuWEXPANSIONPTPEFF(p0, t0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  63. Thermal conductivity coefficient [unit type: thermal conductivity coefficient, unit id = 9, dimension in SI: W/(m·K)]:

    wcuTHERMCONDEXPANSIONPTPEFF(p0, t0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  64. Kinematic viscosity [unit type: kinematic viscosity, unit id = 12, dimension in SI: m2/sec]:

    wcuKINVISEXPANSIONPTPEFF(p0, t0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  65. Dynamic viscosity [unit type: dynamic viscosity, unit id = 10, dimension in SI: Pa·sec]:

    wcuDYNVISEXPANSIONPTPEFF(p0, t0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  66. Prandtl number [unit type: prandtl number, unit id = 11, dimension in SI: ]:

    wcuPRANDTLEEXPANSIONPTPEFF(p0, t0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  67. Isoentropic exponent [unit type: isoentropic exponent, unit id = 13, dimension in SI: ]:

    wcuKEXPANSIONPTPEFF(p0, t0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  68. Joule-Tompson coefficient [unit type: joule-tompson coefficient, unit id = 8, dimension in SI: K/Pa]:

    wcuJOULETHOMPSONEXPANSIONPTPEFF(p0, t0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  69. Temperature [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuTEXPANSIONPTXPEFF(p0, t0, x0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0, x0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  70. Specific volume [unit type: specific volume, unit id = 4, dimension in SI: m3/kg]:

    wcuVEXPANSIONPTXPEFF(p0, t0, x0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0, x0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  71. Specific internal energy [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuUEXPANSIONPTXPEFF(p0, t0, x0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0, x0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  72. Specific enthalpy [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuHEXPANSIONPTXPEFF(p0, t0, x0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0, x0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  73. Specific entropy [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuSEXPANSIONPTXPEFF(p0, t0, x0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0, x0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  74. Specific isobaric heat capacity [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCPEXPANSIONPTXPEFF(p0, t0, x0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0, x0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  75. Specific isochoric heat capacity [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCVEXPANSIONPTXPEFF(p0, t0, x0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0, x0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  76. Sound velocity [unit type: velocity, unit id = 7, dimension in SI: m/sec]:

    wcuWEXPANSIONPTXPEFF(p0, t0, x0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0, x0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  77. Thermal conductivity coefficient [unit type: thermal conductivity coefficient, unit id = 9, dimension in SI: W/(m·K)]:

    wcuTHERMCONDEXPANSIONPTXPEFF(p0, t0, x0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0, x0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  78. Kinematic viscosity [unit type: kinematic viscosity, unit id = 12, dimension in SI: m2/sec]:

    wcuKINVISEXPANSIONPTXPEFF(p0, t0, x0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0, x0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  79. Dynamic viscosity [unit type: dynamic viscosity, unit id = 10, dimension in SI: Pa·sec]:

    wcuDYNVISEXPANSIONPTXPEFF(p0, t0, x0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0, x0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  80. Prandtl number [unit type: prandtl number, unit id = 11, dimension in SI: ]:

    wcuPRANDTLEEXPANSIONPTXPEFF(p0, t0, x0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0, x0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  81. Isoentropic exponent [unit type: isoentropic exponent, unit id = 13, dimension in SI: ]:

    wcuKEXPANSIONPTXPEFF(p0, t0, x0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0, x0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  82. Joule-Tompson coefficient [unit type: joule-tompson coefficient, unit id = 8, dimension in SI: K/Pa]:

    wcuJOULETHOMPSONEXPANSIONPTXPEFF(p0, t0, x0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0, x0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff). Note: In ActiveX object "WSP.WSPCalculator" this function named as "wcuJOULETHOMPSONEXPANSIONPTXPEF" due to limitation in function name length in COM.

  83. Vapor fraction [unit type: vapor fraction, unit id = 3, dimension in SI: ]:

    wcuXEXPANSIONPTXPEFF(p0, t0, x0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0, x0 to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  84. Vapor fraction [unit type: vapor fraction, unit id = 3, dimension in SI: ]:

    wcuXEXPANSIONPTPEFF(p0, t0, p1, eff)

    where:

    This is the common function. Function return the value in the end of the expansion process from the initial point with arguments p0, t0, to pressure p1 with efficiency eff. Process calculate with next formula: h1 = h0 - eff * (h0 - h1isoent), where h0 - specific enthalpy in initial point, h1 - specific enthalpy in final point of the expansion, eff - efficiency, h1isoentr - specific enthalpy in final point with isoentropic expansion (s = Const). For the calculating the process of compression you must to use instead the efficiency eff the inverse number (i.e. 1/eff).

  85. Pressure [unit type: pressure, unit id = 1, dimension in SI: Pa]:

    wcuPHS(h, s)

    where:

    This is the common function. Function algorithm is: for given h and s determined the region of IF-97. After source parameters for specified region is calculated with functions wcuPTxHS and wcuRT3HS. And after that calculated the source function for sought parameter. To improve the speed of calculations you can use: disable precision mode (functions wcuGETTOLERANCEMODE and wcuSETTOLERANCEMODE), vary relative precision for internal iterations (functions wcuGETTOLERANCE and wcuSETTOLERANCE).

  86. Temperature [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuTHS(h, s)

    where:

    This is the common function. Function algorithm is: for given h and s determined the region of IF-97. After source parameters for specified region is calculated with functions wcuPTxHS and wcuRT3HS. And after that calculated the source function for sought parameter. To improve the speed of calculations you can use: disable precision mode (functions wcuGETTOLERANCEMODE and wcuSETTOLERANCEMODE), vary relative precision for internal iterations (functions wcuGETTOLERANCE and wcuSETTOLERANCE).

  87. Properties calculation result (pressure p [unit type: pressure, unit id = 1, dimension in SI: Pa], temperature t [unit type: temperature, unit id = 2, dimension in SI: K]):

    wcuPTHS(h, s, *p, *t)

    where:

    This is the common function. Function algorithm is: for given h and s determined the region of IF-97. After source parameters for specified region is calculated with functions wcuPTxHS and wcuRT3HS. And after that calculated the source function for sought parameter. To improve the speed of calculations you can use: disable precision mode (functions wcuGETTOLERANCEMODE and wcuSETTOLERANCEMODE), vary relative precision for internal iterations (functions wcuGETTOLERANCE and wcuSETTOLERANCE).

  88. Specific volume [unit type: specific volume, unit id = 4, dimension in SI: m3/kg]:

    wcuVHS(h, s)

    where:

    This is the common function. Function algorithm is: for given h and s determined the region of IF-97. After source parameters for specified region is calculated with functions wcuPTxHS and wcuRT3HS. And after that calculated the source function for sought parameter. To improve the speed of calculations you can use: disable precision mode (functions wcuGETTOLERANCEMODE and wcuSETTOLERANCEMODE), vary relative precision for internal iterations (functions wcuGETTOLERANCE and wcuSETTOLERANCE).

  89. Specific internal energy [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuUHS(h, s)

    where:

    This is the common function. Function algorithm is: for given h and s determined the region of IF-97. After source parameters for specified region is calculated with functions wcuPTxHS and wcuRT3HS. And after that calculated the source function for sought parameter. To improve the speed of calculations you can use: disable precision mode (functions wcuGETTOLERANCEMODE and wcuSETTOLERANCEMODE), vary relative precision for internal iterations (functions wcuGETTOLERANCE and wcuSETTOLERANCE).

  90. Specific isobaric heat capacity [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCPHS(h, s)

    where:

    This is the common function. Function algorithm is: for given h and s determined the region of IF-97. After source parameters for specified region is calculated with functions wcuPTxHS and wcuRT3HS. And after that calculated the source function for sought parameter. To improve the speed of calculations you can use: disable precision mode (functions wcuGETTOLERANCEMODE and wcuSETTOLERANCEMODE), vary relative precision for internal iterations (functions wcuGETTOLERANCE and wcuSETTOLERANCE).

  91. Specific isochoric heat capacity [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCVHS(h, s)

    where:

    This is the common function. Function algorithm is: for given h and s determined the region of IF-97. After source parameters for specified region is calculated with functions wcuPTxHS and wcuRT3HS. And after that calculated the source function for sought parameter. To improve the speed of calculations you can use: disable precision mode (functions wcuGETTOLERANCEMODE and wcuSETTOLERANCEMODE), vary relative precision for internal iterations (functions wcuGETTOLERANCE and wcuSETTOLERANCE).

  92. Sound velocity [unit type: velocity, unit id = 7, dimension in SI: m/sec]:

    wcuWHS(h, s)

    where:

    This is the common function. Function algorithm is: for given h and s determined the region of IF-97. After source parameters for specified region is calculated with functions wcuPTxHS and wcuRT3HS. And after that calculated the source function for sought parameter. To improve the speed of calculations you can use: disable precision mode (functions wcuGETTOLERANCEMODE and wcuSETTOLERANCEMODE), vary relative precision for internal iterations (functions wcuGETTOLERANCE and wcuSETTOLERANCE).

  93. Joule-Tompson coefficient [unit type: joule-tompson coefficient, unit id = 8, dimension in SI: K/Pa]:

    wcuJOULETHOMPSONHS(h, s)

    where:

    This is the common function. Function algorithm is: for given h and s determined the region of IF-97. After source parameters for specified region is calculated with functions wcuPTxHS and wcuRT3HS. And after that calculated the source function for sought parameter. To improve the speed of calculations you can use: disable precision mode (functions wcuGETTOLERANCEMODE and wcuSETTOLERANCEMODE), vary relative precision for internal iterations (functions wcuGETTOLERANCE and wcuSETTOLERANCE).

  94. Thermal conductivity coefficient [unit type: thermal conductivity coefficient, unit id = 9, dimension in SI: W/(m·K)]:

    wcuTHERMCONDHS(h, s)

    where:

    This is the common function. Function algorithm is: for given h and s determined the region of IF-97. After source parameters for specified region is calculated with functions wcuPTxHS and wcuRT3HS. And after that calculated the source function for sought parameter. To improve the speed of calculations you can use: disable precision mode (functions wcuGETTOLERANCEMODE and wcuSETTOLERANCEMODE), vary relative precision for internal iterations (functions wcuGETTOLERANCE and wcuSETTOLERANCE).

  95. Dynamic viscosity [unit type: dynamic viscosity, unit id = 10, dimension in SI: Pa·sec]:

    wcuDYNVISHS(h, s)

    where:

    This is the common function. Function algorithm is: for given h and s determined the region of IF-97. After source parameters for specified region is calculated with functions wcuPTxHS and wcuRT3HS. And after that calculated the source function for sought parameter. To improve the speed of calculations you can use: disable precision mode (functions wcuGETTOLERANCEMODE and wcuSETTOLERANCEMODE), vary relative precision for internal iterations (functions wcuGETTOLERANCE and wcuSETTOLERANCE).

  96. Prandtl number [unit type: prandtl number, unit id = 11, dimension in SI: ]:

    wcuPRANDTLEHS(h, s)

    where:

    This is the common function. Function algorithm is: for given h and s determined the region of IF-97. After source parameters for specified region is calculated with functions wcuPTxHS and wcuRT3HS. And after that calculated the source function for sought parameter. To improve the speed of calculations you can use: disable precision mode (functions wcuGETTOLERANCEMODE and wcuSETTOLERANCEMODE), vary relative precision for internal iterations (functions wcuGETTOLERANCE and wcuSETTOLERANCE).

  97. Kinematic viscosity [unit type: kinematic viscosity, unit id = 12, dimension in SI: m2/sec]:

    wcuKINVISHS(h, s)

    where:

    This is the common function. Function algorithm is: for given h and s determined the region of IF-97. After source parameters for specified region is calculated with functions wcuPTxHS and wcuRT3HS. And after that calculated the source function for sought parameter. To improve the speed of calculations you can use: disable precision mode (functions wcuGETTOLERANCEMODE and wcuSETTOLERANCEMODE), vary relative precision for internal iterations (functions wcuGETTOLERANCE and wcuSETTOLERANCE).

  98. Isoentropic exponent [unit type: isoentropic exponent, unit id = 13, dimension in SI: ]:

    wcuKHS(h, s)

    where:

    This is the common function. Function algorithm is: for given h and s determined the region of IF-97. After source parameters for specified region is calculated with functions wcuPTxHS and wcuRT3HS. And after that calculated the source function for sought parameter. To improve the speed of calculations you can use: disable precision mode (functions wcuGETTOLERANCEMODE and wcuSETTOLERANCEMODE), vary relative precision for internal iterations (functions wcuGETTOLERANCE and wcuSETTOLERANCE).

  99. Vapor fraction [unit type: vapor fraction, unit id = 3, dimension in SI: ]:

    wcuXHS(h, s)

    where:

    This is the common function. Function algorithm is: for given h and s determined the region of IF-97. If this region is double-phase area then calculated the sought parameter. To improve the speed of calculations you can use: disable precision mode (functions wcuGETTOLERANCEMODE and wcuSETTOLERANCEMODE), vary relative precision for internal iterations (functions wcuGETTOLERANCE and wcuSETTOLERANCE).

  100. Vapor fraction [unit type: vapor fraction, unit id = 3, dimension in SI: ]:

    wcuXPH(p, h)

    where:

    This is the common function. Function algorithm is: for given p and h determined the region of IF-97. If this region is double-phase area then calculated the sought parameter.

  101. Vapor fraction [unit type: vapor fraction, unit id = 3, dimension in SI: ]:

    wcuXPS(p, s)

    where:

    This is the common function. Function algorithm is: for given p and s determined the region of IF-97. If this region is double-phase area then calculated the sought parameter.

  102. MetaStable

    Functions for calculating properties of meta-stable supercooled steam

  103. Specific volume of meta-stable supercooled steam [unit type: specific volume, unit id = 4, dimension in SI: m3/kg]:

    wcuVMSPT(p, t)

    where:

    This function calculate the properties of super-cooled steam (in meta-stable area). The parameters range lie below pressure 10 MPa and vapor fraction above 95%. For calculating used the special formulation for calculating meta-stable area based upon IAPWS IF-97.

  104. Specific internal energy of meta-stable supercooled steam [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuUMSPT(p, t)

    where:

    This function calculate the properties of super-cooled steam (in meta-stable area). The parameters range lie below pressure 10 MPa and vapor fraction above 95%. For calculating used the special formulation for calculating meta-stable area based upon IAPWS IF-97.

  105. Specific entropy of meta-stable supercooled steam [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuSMSPT(p, t)

    where:

    This function calculate the properties of super-cooled steam (in meta-stable area). The parameters range lie below pressure 10 MPa and vapor fraction above 95%. For calculating used the special formulation for calculating meta-stable area based upon IAPWS IF-97.

  106. Specific enthalpy of meta-stable supercooled steam [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuHMSPT(p, t)

    where:

    This function calculate the properties of super-cooled steam (in meta-stable area). The parameters range lie below pressure 10 MPa and vapor fraction above 95%. For calculating used the special formulation for calculating meta-stable area based upon IAPWS IF-97.

  107. Specific isobaric heat capacity of meta-stable supercooled steam [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCPMSPT(p, t)

    where:

    This function calculate the properties of super-cooled steam (in meta-stable area). The parameters range lie below pressure 10 MPa and vapor fraction above 95%. For calculating used the special formulation for calculating meta-stable area based upon IAPWS IF-97.

  108. Specific isochoric heat capacity of meta-stable supercooled steam [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCVMSPT(p, t)

    where:

    This function calculate the properties of super-cooled steam (in meta-stable area). The parameters range lie below pressure 10 MPa and vapor fraction above 95%. For calculating used the special formulation for calculating meta-stable area based upon IAPWS IF-97.

  109. Sound velocity of meta-stable supercooled steam [unit type: velocity, unit id = 7, dimension in SI: m/sec]:

    wcuWMSPT(p, t)

    where:

    This function calculate the properties of super-cooled steam (in meta-stable area). The parameters range lie below pressure 10 MPa and vapor fraction above 95%. For calculating used the special formulation for calculating meta-stable area based upon IAPWS IF-97.

  110. Thermal conductivity coefficient of meta-stable supercooled steam [unit type: thermal conductivity coefficient, unit id = 9, dimension in SI: W/(m·K)]:

    wcuTHERMCONDMSPT(p, t)

    where:

    This function calculate the properties of super-cooled steam (in meta-stable area). The parameters range lie below pressure 10 MPa and vapor fraction above 95%. For calculating used the special formulation for calculating meta-stable area based upon IAPWS IF-97.

  111. Dynamic viscosity of meta-stable supercooled steam [unit type: dynamic viscosity, unit id = 10, dimension in SI: Pa·sec]:

    wcuDYNVISMSPT(p, t)

    where:

    This function calculate the properties of super-cooled steam (in meta-stable area). The parameters range lie below pressure 10 MPa and vapor fraction above 95%. For calculating used the special formulation for calculating meta-stable area based upon IAPWS IF-97.

  112. Prandtl number of meta-stable supercooled steam [unit type: prandtl number, unit id = 11, dimension in SI: ]:

    wcuPRANDTLEMSPT(p, t)

    where:

    This function calculate the properties of super-cooled steam (in meta-stable area). The parameters range lie below pressure 10 MPa and vapor fraction above 95%. For calculating used the special formulation for calculating meta-stable area based upon IAPWS IF-97.

  113. Kinematic viscosity of meta-stable supercooled steam [unit type: kinematic viscosity, unit id = 12, dimension in SI: m2/sec]:

    wcuKINVISMSPT(p, t)

    where:

    This function calculate the properties of super-cooled steam (in meta-stable area). The parameters range lie below pressure 10 MPa and vapor fraction above 95%. For calculating used the special formulation for calculating meta-stable area based upon IAPWS IF-97.

  114. Isoentropic exponent of meta-stable supercooled steam [unit type: isoentropic exponent, unit id = 13, dimension in SI: ]:

    wcuKMSPT(p, t)

    where:

    This function calculate the properties of super-cooled steam (in meta-stable area). The parameters range lie below pressure 10 MPa and vapor fraction above 95%. For calculating used the special formulation for calculating meta-stable area based upon IAPWS IF-97.

  115. Joule-Tompson coefficient of meta-stable supercooled steam [unit type: joule-tompson coefficient, unit id = 8, dimension in SI: K/Pa]:

    wcuJOULETHOMPSONMSPT(p, t)

    where:

    This function calculate the properties of super-cooled steam (in meta-stable area). The parameters range lie below pressure 10 MPa and vapor fraction above 95%. For calculating used the special formulation for calculating meta-stable area based upon IAPWS IF-97.

  116. Source

    Functions from IAPWS IF-97 and other formulations.

  117. Pressure at line between areas 2 and 3 [unit type: pressure, unit id = 1, dimension in SI: Pa]:

    wcuP23T(t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam. Used in function wcuWATERSTATEAREA when area is determined.

  118. Temperature at line between areas 2 and 3 [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuT23P(p)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam. Used in function wcuWATERSTATEAREA when area is determined.

  119. Water state area:

    wcuWATERSTATEAREA(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam areas allocation for determining area. Used in common functions.

    Note: Function result have type "long".

  120. Water state area (version 2):

    wcuWATERSTATEAREA2(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam areas allocation for determining area (version 2 - without area 4 - saturation line). Used in common functions.

    Note: Function result have type "long".

  121. Thermal conductivity coefficient [unit type: thermal conductivity coefficient, unit id = 9, dimension in SI: W/(m·K)]:

    wcuTHERMCONDRT(r, t)

    where:

    Based upon the IAPWS Formulation 1985 for thermal Conductivity with ITS-90 (International Temperature Scale) correction.

  122. Dynamic viscosity [unit type: dynamic viscosity, unit id = 10, dimension in SI: Pa·sec]:

    wcuDYNVISRT(r, t)

    where:

    Based upon the IAPWS Formulation 1985 for the Viscosity of Ordinary Water Substance with ITS-90 (International Temperature Scale) correction.

  123. Specific volume in area 1 [unit type: specific volume, unit id = 4, dimension in SI: m3/kg]:

    wcuV1PT(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  124. Specific internal energy in area 1 [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuU1PT(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  125. Specific entropy in area 1 [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuS1PT(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  126. Specific enthalpy in area 1 [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuH1PT(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  127. Specific isobaric heat capacity in area 1 [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCP1PT(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  128. Specific isochoric heat capacity in area 1 [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCV1PT(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  129. Sound velocity in area 1 [unit type: velocity, unit id = 7, dimension in SI: m/sec]:

    wcuW1PT(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  130. Joule-Tompson coefficient in area 1 [unit type: joule-tompson coefficient, unit id = 8, dimension in SI: K/Pa]:

    wcuJOULETHOMPSON1PT(p, t)

    where:

    Function use the formula: JT = (T*dV/dT - V)/Cp, where T - temperature, dV/dT - differential quotient (dV/dT)p, V - volume, Cp - isobaric heat capacity (Cp).

  131. Properties calculation result in area 1 (specific volume v [unit type: specific volume, unit id = 4, dimension in SI: m3/kg], specific internal energy u [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg], specific entropy s [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], specific enthalpy h [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg], specific isochoric heat capacity Cv [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], sound velocity w [unit type: velocity, unit id = 7, dimension in SI: m/sec], derivate of specific volume on pressure with constant temperature DVDPt [unit type: DVDPt, unit id = 20, dimension in SI: m3/(kg·Pa)], derivate of specific internal energy on pressure with constant temperature DUDPt [unit type: DUDPt, unit id = 21, dimension in SI: J/(kg·Pa)], derivate of specific entropy on pressure with constant temperature DSDPt [unit type: DSDPt, unit id = 22, dimension in SI: J/(kg·K·Pa)], derivate of specific enthalpy on pressure with constant temperature DHDPt [unit type: DUDPt, unit id = 21, dimension in SI: J/(kg·Pa)], derivate of specific volume on temperature with constant pressure DVDTp [unit type: DVDTp, unit id = 23, dimension in SI: m3/(kg·K)], derivate of specific internal energy on temperature with constant pressure DUDTp [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], derivate of specific entropy on temperature with constant pressure DSDTp [unit type: DSDTp, unit id = 24, dimension in SI: J/(kg·K·K)], derivate of specific enthalpy on temperature with constant pressure DHDTp [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]):

    wcuVUSHCVWDERPT1PT(p, t, *v, *u, *s, *h, *Cv, *w, *DVDPt, *DUDPt, *DSDPt, *DHDPt, *DVDTp, *DUDTp, *DSDTp, *DHDTp)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam. This function return the properties set, so it is significally increase calculation speed. In Mathcad this function depends upon only two arguments p and t, and return array of results in SI units system.

  132. Specific volume in area 2 [unit type: specific volume, unit id = 4, dimension in SI: m3/kg]:

    wcuV2PT(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  133. Specific internal energy in area 2 [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuU2PT(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  134. Specific entropy in area 2 [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuS2PT(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  135. Specific enthalpy in area 2 [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuH2PT(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  136. Specific isobaric heat capacity in area 2 [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCP2PT(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  137. Specific isochoric heat capacity in area 2 [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCV2PT(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  138. Sound velocity in area 2 [unit type: velocity, unit id = 7, dimension in SI: m/sec]:

    wcuW2PT(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  139. Joule-Tompson coefficient in area 2 [unit type: joule-tompson coefficient, unit id = 8, dimension in SI: K/Pa]:

    wcuJOULETHOMPSON2PT(p, t)

    where:

    Function use the formula: JT = (T*dV/dT - V)/Cp, where T - temperature, dV/dT - differential quotient (dV/dT)p, V - volume, Cp - isobaric heat capacity (Cp).

  140. Properties calculation result in area 2 (specific volume v [unit type: specific volume, unit id = 4, dimension in SI: m3/kg], specific internal energy u [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg], specific entropy s [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], specific enthalpy h [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg], specific isochoric heat capacity Cv [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], sound velocity w [unit type: velocity, unit id = 7, dimension in SI: m/sec], derivate of specific volume on pressure with constant temperature DVDPt [unit type: DVDPt, unit id = 20, dimension in SI: m3/(kg·Pa)], derivate of specific internal energy on pressure with constant temperature DUDPt [unit type: DUDPt, unit id = 21, dimension in SI: J/(kg·Pa)], derivate of specific entropy on pressure with constant temperature DSDPt [unit type: DSDPt, unit id = 22, dimension in SI: J/(kg·K·Pa)], derivate of specific enthalpy on pressure with constant temperature DHDPt [unit type: DUDPt, unit id = 21, dimension in SI: J/(kg·Pa)], derivate of specific volume on temperature with constant pressure DVDTp [unit type: DVDTp, unit id = 23, dimension in SI: m3/(kg·K)], derivate of specific internal energy on temperature with constant pressure DUDTp [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], derivate of specific entropy on temperature with constant pressure DSDTp [unit type: DSDTp, unit id = 24, dimension in SI: J/(kg·K·K)], derivate of specific enthalpy on temperature with constant pressure DHDTp [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]):

    wcuVUSHCVWDERPT2PT(p, t, *v, *u, *s, *h, *Cv, *w, *DVDPt, *DUDPt, *DSDPt, *DHDPt, *DVDTp, *DUDTp, *DSDTp, *DHDTp)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam. This function return the properties set, so it is significally increase calculation speed. In Mathcad this function depends upon only two arguments p and t, and return array of results in SI units system.

  141. Pressure in area 3 [unit type: pressure, unit id = 1, dimension in SI: Pa]:

    wcuP3RT(r, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  142. Density in area 3 [unit type: density, unit id = 16, dimension in SI: kg/m3]:

    wcuR3PTR0(p, t, r0)

    where:

    Use Newton method with initial value to determine the density from p and t. Used for unification of calculation properties in all IF-97 areas.

  143. Density in area 3 [unit type: density, unit id = 16, dimension in SI: kg/m3]:

    wcuR3PT(p, t)

    where:

    Calculate the density in area 3 with function wcuR3PTR0 with the corresponding initial values for water and steam. Used for unification of calculation properties in all IF-97 areas.

  144. Specific internal energy in area 3 [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuU3RT(r, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  145. Specific entropy in area 3 [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuS3RT(r, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  146. Specific enthalpy in area 3 [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuH3RT(r, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  147. Specific isobaric heat capacity in area 3 [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCP3RT(r, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  148. Specific isochoric heat capacity in area 3 [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCV3RT(r, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  149. Sound velocity in area 3 [unit type: velocity, unit id = 7, dimension in SI: m/sec]:

    wcuW3RT(r, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  150. Properties calculation result in area 3 (specific volume v [unit type: specific volume, unit id = 4, dimension in SI: m3/kg], specific internal energy u [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg], specific entropy s [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], specific enthalpy h [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg], specific isochoric heat capacity Cv [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], sound velocity w [unit type: velocity, unit id = 7, dimension in SI: m/sec], derivate of specific volume on pressure with constant temperature DVDPt [unit type: DVDPt, unit id = 20, dimension in SI: m3/(kg·Pa)], derivate of specific internal energy on pressure with constant temperature DUDPt [unit type: DUDPt, unit id = 21, dimension in SI: J/(kg·Pa)], derivate of specific entropy on pressure with constant temperature DSDPt [unit type: DSDPt, unit id = 22, dimension in SI: J/(kg·K·Pa)], derivate of specific enthalpy on pressure with constant temperature DHDPt [unit type: DUDPt, unit id = 21, dimension in SI: J/(kg·Pa)], derivate of specific volume on temperature with constant pressure DVDTp [unit type: DVDTp, unit id = 23, dimension in SI: m3/(kg·K)], derivate of specific internal energy on temperature with constant pressure DUDTp [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], derivate of specific entropy on temperature with constant pressure DSDTp [unit type: DSDTp, unit id = 24, dimension in SI: J/(kg·K·K)], derivate of specific enthalpy on temperature with constant pressure DHDTp [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]):

    wcuVUSHCVWDERPT3RT(r, t, *v, *u, *s, *h, *Cv, *w, *DVDPt, *DUDPt, *DSDPt, *DHDPt, *DVDTp, *DUDTp, *DSDTp, *DHDTp)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam. This function return the properties set, so it is significally increase calculation speed. In Mathcad this function depends upon only two arguments p and t, and return array of results in SI units system.

  151. Specific volume in area 3 [unit type: specific volume, unit id = 4, dimension in SI: m3/kg]:

    wcuV3PT(p, t)

    where:

    Based upon function wcuR3PT.

  152. Specific internal energy in area 3 [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuU3PT(p, t)

    where:

    Based upon functions wcuR3PT and wcuU3RT.

  153. Specific entropy in area 3 [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuS3PT(p, t)

    where:

    Based upon functions wcuR3PT and wcuS3RT.

  154. Specific enthalpy in area 3 [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuH3PT(p, t)

    where:

    Based upon functions wcuR3PT and wcuH3RT.

  155. Specific isobaric heat capacity in area 3 [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCP3PT(p, t)

    where:

    Based upon functions wcuR3PT and wcuCP3RT.

  156. Specific isochoric heat capacity in area 3 [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCV3PT(p, t)

    where:

    Based upon functions wcuR3PT and wcuCV3RT.

  157. Sound velocity in area 3 [unit type: velocity, unit id = 7, dimension in SI: m/sec]:

    wcuW3PT(p, t)

    where:

    Based upon functions wcuR3PT and wcuW3RT.

  158. Joule-Tompson coefficient in area 3 [unit type: joule-tompson coefficient, unit id = 8, dimension in SI: K/Pa]:

    wcuJOULETHOMPSON3RT(r, t)

    where:

    Calculate the Joule-Tompson coefficient for area 3 of IF-97 Formulation.

  159. Joule-Tompson coefficient in area 3 [unit type: joule-tompson coefficient, unit id = 8, dimension in SI: K/Pa]:

    wcuJOULETHOMPSON3PT(p, t)

    where:

    Calculate the Joule-Tompson coefficient for area 3 of IF-97 Formulation. This function use for the first function wcuR3PT(p, t) for calculating density and after return the value from the function wcuJOULETHOMPSON3RT(r, t).

  160. Properties calculation result in area 3 (specific volume v [unit type: specific volume, unit id = 4, dimension in SI: m3/kg], specific internal energy u [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg], specific entropy s [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], specific enthalpy h [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg], specific isochoric heat capacity Cv [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], sound velocity w [unit type: velocity, unit id = 7, dimension in SI: m/sec], derivate of specific volume on pressure with constant temperature DVDPt [unit type: DVDPt, unit id = 20, dimension in SI: m3/(kg·Pa)], derivate of specific internal energy on pressure with constant temperature DUDPt [unit type: DUDPt, unit id = 21, dimension in SI: J/(kg·Pa)], derivate of specific entropy on pressure with constant temperature DSDPt [unit type: DSDPt, unit id = 22, dimension in SI: J/(kg·K·Pa)], derivate of specific enthalpy on pressure with constant temperature DHDPt [unit type: DUDPt, unit id = 21, dimension in SI: J/(kg·Pa)], derivate of specific volume on temperature with constant pressure DVDTp [unit type: DVDTp, unit id = 23, dimension in SI: m3/(kg·K)], derivate of specific internal energy on temperature with constant pressure DUDTp [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], derivate of specific entropy on temperature with constant pressure DSDTp [unit type: DSDTp, unit id = 24, dimension in SI: J/(kg·K·K)], derivate of specific enthalpy on temperature with constant pressure DHDTp [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]):

    wcuVUSHCVWDERPT3PT(p, t, *v, *u, *s, *h, *Cv, *w, *DVDPt, *DUDPt, *DSDPt, *DHDPt, *DVDTp, *DUDTp, *DSDTp, *DHDTp)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam. This function return the properties set, so it is significally increase calculation speed. In Mathcad this function depends upon only two arguments p and t, and return array of results in SI units system.

  161. Specific volume in area 5 [unit type: specific volume, unit id = 4, dimension in SI: m3/kg]:

    wcuV5PT(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  162. Specific internal energy in area 5 [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuU5PT(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  163. Specific entropy in area 5 [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuS5PT(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  164. Specific enthalpy in area 5 [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuH5PT(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  165. Specific isobaric heat capacity in area 5 [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCP5PT(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  166. Specific isochoric heat capacity in area 5 [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCV5PT(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  167. Sound velocity in area 5 [unit type: velocity, unit id = 7, dimension in SI: m/sec]:

    wcuW5PT(p, t)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  168. Joule-Tompson coefficient in area 5 [unit type: joule-tompson coefficient, unit id = 8, dimension in SI: K/Pa]:

    wcuJOULETHOMPSON5PT(p, t)

    where:

    Function use the formula: JT = (T*dV/dT - V)/Cp, where T - temperature, dV/dT - differential quotient (dV/dT)p, V - volume, Cp - isobaric heat capacity (Cp).

  169. Properties calculation result in area 5 (specific volume v [unit type: specific volume, unit id = 4, dimension in SI: m3/kg], specific internal energy u [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg], specific entropy s [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], specific enthalpy h [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg], specific isochoric heat capacity Cv [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], sound velocity w [unit type: velocity, unit id = 7, dimension in SI: m/sec], derivate of specific volume on pressure with constant temperature DVDPt [unit type: DVDPt, unit id = 20, dimension in SI: m3/(kg·Pa)], derivate of specific internal energy on pressure with constant temperature DUDPt [unit type: DUDPt, unit id = 21, dimension in SI: J/(kg·Pa)], derivate of specific entropy on pressure with constant temperature DSDPt [unit type: DSDPt, unit id = 22, dimension in SI: J/(kg·K·Pa)], derivate of specific enthalpy on pressure with constant temperature DHDPt [unit type: DUDPt, unit id = 21, dimension in SI: J/(kg·Pa)], derivate of specific volume on temperature with constant pressure DVDTp [unit type: DVDTp, unit id = 23, dimension in SI: m3/(kg·K)], derivate of specific internal energy on temperature with constant pressure DUDTp [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], derivate of specific entropy on temperature with constant pressure DSDTp [unit type: DSDTp, unit id = 24, dimension in SI: J/(kg·K·K)], derivate of specific enthalpy on temperature with constant pressure DHDTp [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]):

    wcuVUSHCVWDERPT5PT(p, t, *v, *u, *s, *h, *Cv, *w, *DVDPt, *DUDPt, *DSDPt, *DHDPt, *DVDTp, *DUDTp, *DSDTp, *DHDTp)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam. This function return the properties set, so it is significally increase calculation speed. In Mathcad this function depends upon only two arguments p and t, and return array of results in SI units system.

  170. Temperature in area 1 [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuT1PH(p, h)

    where:

    Based upon the Additional Formulations for the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  171. Temperature in area 1 [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuT1PS(p, s)

    where:

    Based upon the Additional Formulations for the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  172. Pressure in area 1 [unit type: pressure, unit id = 1, dimension in SI: Pa]:

    wcuP1HS(h, s)

    where:

    Based upon the "Supplementary Release on Backward Equations for Pressure as a Function of Enthalpy and Entropy p(h,s) to the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam" (September 2001).

  173. Temperature in area 1 [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuT1HS(h, s)

    where:

    Based upon the "Supplementary Release on Backward Equations for Pressure as a Function of Enthalpy and Entropy p(h,s) to the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam" (September 2001).

  174. Properties calculation result in area 1 (pressure p [unit type: pressure, unit id = 1, dimension in SI: Pa], temperature t [unit type: temperature, unit id = 2, dimension in SI: K]):

    wcuPT1RH(r, h, *p, *t)

    where:

    Based upon the source equations of IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam. The function use the Newton method for determine the roots of function.

  175. Temperature in area 2a [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuT2APH(p, h)

    where:

    Based upon the Additional Formulations for the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  176. Temperature in area 2a [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuT2APS(p, s)

    where:

    Based upon the Additional Formulations for the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  177. Temperature in area 2b [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuT2BPH(p, h)

    where:

    Based upon the Additional Formulations for the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  178. Temperature in area 2b [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuT2BPS(p, s)

    where:

    Based upon the Additional Formulations for the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  179. Temperature in area 2c [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuT2CPH(p, h)

    where:

    Based upon the Additional Formulations for the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  180. Temperature in area 2c [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuT2CPS(p, s)

    where:

    Based upon the Additional Formulations for the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  181. Temperature in area 2 [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuT2PH(p, h)

    where:

    Based upon functions wcuT2APH, wcuT2BPH and wcuT2CPH.

  182. Temperature in area 2 [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuT2PS(p, s)

    where:

    Based upon functions wcuT2APS, wcuT2BPS and wcuT2CPS.

  183. Pressure in area 2 [unit type: pressure, unit id = 1, dimension in SI: Pa]:

    wcuP2HS(h, s)

    where:

    Based upon the "Supplementary Release on Backward Equations for Pressure as a Function of Enthalpy and Entropy p(h,s) to the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam" (September 2001). Internally used the functions: wcuP2AHS(h, s), wcuP2BHS(h, s) and wcuP2CHS(h, s).

  184. Temperature in area 2 [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuT2HS(h, s)

    where:

    Based upon the "Supplementary Release on Backward Equations for Pressure as a Function of Enthalpy and Entropy p(h,s) to the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam" (September 2001).

  185. Properties calculation result in area 2 (pressure p [unit type: pressure, unit id = 1, dimension in SI: Pa], temperature t [unit type: temperature, unit id = 2, dimension in SI: K]):

    wcuPT2RH(r, h, *p, *t)

    where:

    Based upon the source equations of IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam. The function use the Newton method for determine the roots of function.

  186. Temperature in area 3 [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuT3PH(p, h)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam. The function use the Newton method for determine the root of function with two arguments.

  187. Temperature in area 3 [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuT3PS(p, s)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam. The function use the Newton method for determine the root of function with two arguments.

  188. Pressure in area 3 [unit type: pressure, unit id = 1, dimension in SI: Pa]:

    wcuP3HS(h, s)

    where:

    Based upon the "Supplementary Release on Backward Equations for p(h, s) for Region 3, Equations as a Function of h and s for the Region Boundaries, and a Equation Tsat(h, s) for Wet Steam of the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam" (September 2004).

  189. Temperature in area 3 [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuT3HS(h, s)

    where:

    Based upon the "Supplementary Release on Backward Equations for p(h, s) for Region 3, Equations as a Function of h and s for the Region Boundaries, and a Equation Tsat(h, s) for Wet Steam of the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam" (September 2004).

  190. Specific volume in area 3 [unit type: specific volume, unit id = 4, dimension in SI: m3/kg]:

    wcuV3HS(h, s)

    where:

    Based upon the "Supplementary Release on Backward Equations for p(h, s) for Region 3, Equations as a Function of h and s for the Region Boundaries, and a Equation Tsat(h, s) for Wet Steam of the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam" (September 2004).

  191. Specific volume in area 3 [unit type: specific volume, unit id = 4, dimension in SI: m3/kg]:

    wcuV3PH(p, h)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam. The function use the Newton method for determine the root of function with two arguments.

  192. Specific volume in area 3 [unit type: specific volume, unit id = 4, dimension in SI: m3/kg]:

    wcuV3PS(p, s)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam. The function use the Newton method for determine the root of function with two arguments.

  193. Temperature in area 3 [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuT3RH(r, h)

    where:

    Based upon the source equations of IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam. The function use the Newton method for determine the root of function.

  194. Temperature in area 5 [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuT5PH(p, h)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam. The function use the Newton method for determine the root of function with two arguments.

  195. Temperature in area 5 [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuT5PS(p, s)

    where:

    Based upon the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam. The function use the Newton method for determine the root of function with two arguments.

  196. Properties calculation result in area 5 (pressure p [unit type: pressure, unit id = 1, dimension in SI: Pa], temperature t [unit type: temperature, unit id = 2, dimension in SI: K]):

    wcuPT5RH(r, h, *p, *t)

    where:

    Based upon the source equations of IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam. The function use the Newton method for determine the roots of function.

  197. Pressure at line between areas 2b and 2c [unit type: pressure, unit id = 1, dimension in SI: Pa]:

    wcuP2B2CH(h)

    where:

    Based upon the Additional Formulation for the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  198. Specific enthalpy at line between areas 2b and 2c [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuH2B2CP(p)

    where:

    Based upon the Additional Formulation for the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam.

  199. Water state area:

    wcuWATERSTATEAREAPH(p, h)

    where:

    Based upon the Additional Formulation for the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam areas allocation for determining area. Used in common functions.

    Note: Function result have type "long".

  200. Water state area:

    wcuWATERSTATEAREAPS(p, s)

    where:

    Based upon the Additional Formulation for the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam areas allocation for determining area. Used in common functions.

    Note: Function result have type "long".

  201. Area of phase state:

    wcuPHASESTATEPT(p, t)

    where:

    Function return code of phase state in point given by (p, t). Function result calculated with next rules: if pressure p or temperature t more than critical ones (Prk or Tkr), the result is "3" (phase state - supercritical). If the point situated above the saturation line (in P-T diagramm) then the result is "1" (phase state - liquid). If the point situated below the saturation line (in P-T diagram) then the result is "2" (phase state - steam). If point situated below triple point, then the return value is error value ("-1").

    Note: Function result have type "long".

  202. Water state area:

    wcuWATERSTATEAREAHS(h, s)

    where:

    Based upon the Additional Formulation for the IAPWS Industrial Formulation 1997 for thermodynamic Properties of Water and Steam areas allocation for determining area. Used in common functions.

    Note: Function result have type "long".

  203. Temperature at boundary line between areas 2 and 3 [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuTB23HS(h, s)

    where:

    Based upon the "Supplementary Release on Backward Equations for p(h, s) for Region 3, Equations as a Function of h and s for the Region Boundaries, and a Equation Tsat(h, s) for Wet Steam of the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam" (September 2004).

  204. Pressure at boundary line between areas 2 and 3 [unit type: pressure, unit id = 1, dimension in SI: Pa]:

    wcuPB23HS(h, s)

    where:

    Based upon the "Supplementary Release on Backward Equations for p(h, s) for Region 3, Equations as a Function of h and s for the Region Boundaries, and a Equation Tsat(h, s) for Wet Steam of the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam" (September 2004).

  205. Specific enthalpy at boundary line between areas 1 and 3 [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuHB13S(s)

    where:

    Based upon the "Supplementary Release on Backward Equations for p(h, s) for Region 3, Equations as a Function of h and s for the Region Boundaries, and a Equation Tsat(h, s) for Wet Steam of the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam" (September 2004).

  206. Pressure in area 5 [unit type: pressure, unit id = 1, dimension in SI: Pa]:

    wcuP5HS(h, s)

    where:

    To find the pressure in area 5 Newton method used.

  207. Temperature in area 5 [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuT5HS(h, s)

    where:

    To find the temperature in area 5 Newton method used.

  208. Properties calculation result in area 1 (pressure p [unit type: pressure, unit id = 1, dimension in SI: Pa], temperature t [unit type: temperature, unit id = 2, dimension in SI: K]):

    wcuPT1HS(h, s, *p, *t)

    where:

    To find the parameters in area 1 Newton method used.

  209. Properties calculation result in area 2 (pressure p [unit type: pressure, unit id = 1, dimension in SI: Pa], temperature t [unit type: temperature, unit id = 2, dimension in SI: K]):

    wcuPT2HS(h, s, *p, *t)

    where:

    To find the parameters in area 2 Newton method used.

  210. Properties calculation result in area 3 (density r [unit type: density, unit id = 16, dimension in SI: kg/m3], temperature t [unit type: temperature, unit id = 2, dimension in SI: K]):

    wcuRT3HS(h, s, *r, *t)

    where:

    To find the parameters in area 3 Newton method used.

  211. Properties calculation result in area 3 (pressure p [unit type: pressure, unit id = 1, dimension in SI: Pa], temperature t [unit type: temperature, unit id = 2, dimension in SI: K]):

    wcuPT3HS(h, s, *p, *t)

    where:

    Function based on function wcuRT3HS. After call to wcuRT3HS used the standard equations to determine the pressure.

  212. Properties calculation result in area 5 (pressure p [unit type: pressure, unit id = 1, dimension in SI: Pa], temperature t [unit type: temperature, unit id = 2, dimension in SI: K]):

    wcuPT5HS(h, s, *p, *t)

    where:

    To find the parameters in area 5 Newton method used.

  213. Saturation Line

    Functions of properties at saturation line.

  214. Pressure at saturation line [unit type: pressure, unit id = 1, dimension in SI: Pa]:

    wcuPST(t)

    where:

    Based upon the Supplementary Release on Saturation Properties of Ordinary Water Substance from IAPWS.

  215. Derivative of saturation pressure on saturation temperature [unit type: DPDT, unit id = 19, dimension in SI: Pa/K]:

    wcuDPDTST(t)

    where:

    Functions is based upon "Supplementary Release on Saturation Properties of Ordinary Water Substance" from International Association for the Properties of Water and Steam.

  216. Temperature at saturation line [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuTSP(p)

    where:

    Based upon the Supplementary Release on Saturation Properties of Ordinary Water Substance from IAPWS.

  217. Specific volume of steam at saturation line [unit type: specific volume, unit id = 4, dimension in SI: m3/kg]:

    wcuVSST(t)

    where:

  218. Specific volume of water at saturation line [unit type: specific volume, unit id = 4, dimension in SI: m3/kg]:

    wcuVSWT(t)

    where:

  219. Rough value of density of steam at saturation line [unit type: density, unit id = 16, dimension in SI: kg/m3]:

    wcuROUGHRSST(t)

    where:

    This function allow to quickly calculate rough value of density of steam at saturation line.

  220. Rough value of density of water at saturation line [unit type: density, unit id = 16, dimension in SI: kg/m3]:

    wcuROUGHRSWT(t)

    where:

    This function allow to quickly calculate rough value of density of water at saturation line.

  221. Specific internal energy of steam at saturation line [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuUSST(t)

    where:

  222. Specific internal energy of water at saturation line [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuUSWT(t)

    where:

  223. Specific entropy of steam at saturation line [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuSSST(t)

    where:

  224. Specific entropy of water at saturation line [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuSSWT(t)

    where:

  225. Specific enthalpy of steam at saturation line [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuHSST(t)

    where:

  226. Specific enthalpy of water at saturation line [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuHSWT(t)

    where:

  227. Specific isobaric heat capacity of steam at saturation line [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCPSST(t)

    where:

  228. Specific isobaric heat capacity of water at saturation line [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCPSWT(t)

    where:

  229. Specific isochoric heat capacity of steam at saturation line from the one-phase region [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCVSST(t)

    where:

  230. Specific isochoric heat capacity of water at saturation line from the one-phase region [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCVSWT(t)

    where:

  231. Specific isochoric heat capacity of steam at saturation line from the double-phase region [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCVDPSST(t)

    where:

    Function return the sum of specific isochoric heat capacity of steam from one-phase region (function wcuCVSST) and additiona increment, the last calculated with corresponding thermodynamic formulas.

  232. Specific isochoric heat capacity of water at saturation line from the double-phase region [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCVDPSWT(t)

    where:

    Function return the sum of specific isochoric heat capacity of water from one-phase region (function wcuCVSWT) and additiona increment, the last calculated with corresponding thermodynamic formulas.

  233. Sound velocity in steam at saturation line [unit type: velocity, unit id = 7, dimension in SI: m/sec]:

    wcuWSST(t)

    where:

  234. Sound velocity in water at saturation line [unit type: velocity, unit id = 7, dimension in SI: m/sec]:

    wcuWSWT(t)

    where:

  235. Joule-Tompson coefficient of steam at saturation line [unit type: joule-tompson coefficient, unit id = 8, dimension in SI: K/Pa]:

    wcuJOULETHOMPSONSST(t)

    where:

  236. Joule-Tompson coefficient of water at saturation line [unit type: joule-tompson coefficient, unit id = 8, dimension in SI: K/Pa]:

    wcuJOULETHOMPSONSWT(t)

    where:

  237. Thermal conductivity coefficient of steam at saturation line [unit type: thermal conductivity coefficient, unit id = 9, dimension in SI: W/(m·K)]:

    wcuTHERMCONDSST(t)

    where:

  238. Thermal conductivity coefficient of water at saturation line [unit type: thermal conductivity coefficient, unit id = 9, dimension in SI: W/(m·K)]:

    wcuTHERMCONDSWT(t)

    where:

  239. Dynamic viscosity of steam at saturation line [unit type: dynamic viscosity, unit id = 10, dimension in SI: Pa·sec]:

    wcuDYNVISSST(t)

    where:

  240. Dynamic viscosity of water at saturation line [unit type: dynamic viscosity, unit id = 10, dimension in SI: Pa·sec]:

    wcuDYNVISSWT(t)

    where:

  241. Prandtl number of steam at saturation line [unit type: prandtl number, unit id = 11, dimension in SI: ]:

    wcuPRANDTLESST(t)

    where:

  242. Prandtl number of water at saturation line [unit type: prandtl number, unit id = 11, dimension in SI: ]:

    wcuPRANDTLESWT(t)

    where:

  243. Kinematic viscosity of steam at saturation line [unit type: kinematic viscosity, unit id = 12, dimension in SI: m2/sec]:

    wcuKINVISSST(t)

    where:

  244. Kinematic viscosity of water at saturation line [unit type: kinematic viscosity, unit id = 12, dimension in SI: m2/sec]:

    wcuKINVISSWT(t)

    where:

  245. Isoentropic exponent of steam at saturation line [unit type: isoentropic exponent, unit id = 13, dimension in SI: ]:

    wcuKSST(t)

    where:

  246. Isoentropic exponent of water at saturation line [unit type: isoentropic exponent, unit id = 13, dimension in SI: ]:

    wcuKSWT(t)

    where:

  247. Specific evaporation heat [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuRST(t)

    where:

    Calculate as r = (hs - hw), where hs - specific enthalpy of steam at saturation line, hw - specific enthalpy of water at saturation line.

  248. Properties calculation result for water at saturation line (specific volume v [unit type: specific volume, unit id = 4, dimension in SI: m3/kg], specific internal energy u [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg], specific entropy s [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], specific enthalpy h [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg], specific isochoric heat capacity Cv [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], sound velocity w [unit type: velocity, unit id = 7, dimension in SI: m/sec], derivate of specific volume on pressure with constant temperature DVDPt [unit type: DVDPt, unit id = 20, dimension in SI: m3/(kg·Pa)], derivate of specific internal energy on pressure with constant temperature DUDPt [unit type: DUDPt, unit id = 21, dimension in SI: J/(kg·Pa)], derivate of specific entropy on pressure with constant temperature DSDPt [unit type: DSDPt, unit id = 22, dimension in SI: J/(kg·K·Pa)], derivate of specific enthalpy on pressure with constant temperature DHDPt [unit type: DUDPt, unit id = 21, dimension in SI: J/(kg·Pa)], derivate of specific volume on temperature with constant pressure DVDTp [unit type: DVDTp, unit id = 23, dimension in SI: m3/(kg·K)], derivate of specific internal energy on temperature with constant pressure DUDTp [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], derivate of specific entropy on temperature with constant pressure DSDTp [unit type: DSDTp, unit id = 24, dimension in SI: J/(kg·K·K)], derivate of specific enthalpy on temperature with constant pressure DHDTp [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]):

    wcuVUSHCVWDERPTSWT(t, *v, *u, *s, *h, *Cv, *w, *DVDPt, *DUDPt, *DSDPt, *DHDPt, *DVDTp, *DUDTp, *DSDTp, *DHDTp)

    where:

    Function based upon IF-97 formulation. This function return the properties set, so it is significally increase calculation speed. In Mathcad this function depends upon only one argument t, and return array of results in SI units system.

  249. Properties calculation result for steam at saturation line (specific volume v [unit type: specific volume, unit id = 4, dimension in SI: m3/kg], specific internal energy u [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg], specific entropy s [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], specific enthalpy h [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg], specific isochoric heat capacity Cv [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], sound velocity w [unit type: velocity, unit id = 7, dimension in SI: m/sec], derivate of specific volume on pressure with constant temperature DVDPt [unit type: DVDPt, unit id = 20, dimension in SI: m3/(kg·Pa)], derivate of specific internal energy on pressure with constant temperature DUDPt [unit type: DUDPt, unit id = 21, dimension in SI: J/(kg·Pa)], derivate of specific entropy on pressure with constant temperature DSDPt [unit type: DSDPt, unit id = 22, dimension in SI: J/(kg·K·Pa)], derivate of specific enthalpy on pressure with constant temperature DHDPt [unit type: DUDPt, unit id = 21, dimension in SI: J/(kg·Pa)], derivate of specific volume on temperature with constant pressure DVDTp [unit type: DVDTp, unit id = 23, dimension in SI: m3/(kg·K)], derivate of specific internal energy on temperature with constant pressure DUDTp [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)], derivate of specific entropy on temperature with constant pressure DSDTp [unit type: DSDTp, unit id = 24, dimension in SI: J/(kg·K·K)], derivate of specific enthalpy on temperature with constant pressure DHDTp [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]):

    wcuVUSHCVWDERPTSST(t, *v, *u, *s, *h, *Cv, *w, *DVDPt, *DUDPt, *DSDPt, *DHDPt, *DVDTp, *DUDTp, *DSDTp, *DHDTp)

    where:

    Function based upon IF-97 formulation. This function return the properties set, so it is significally increase calculation speed. In Mathcad this function depends upon only one argument t, and return array of results in SI units system.

  250. Specific enthalpy of steam at saturation line [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuROUGHHSSS(s)

    where:

    Function used the special function from Supplementory Release for IF-97 Formulation.

  251. Specific enthalpy of water at saturation line [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuROUGHHSWS(s)

    where:

    Function used the special function from Supplementory Release for IF-97 Formulation.

  252. Temperature at saturation line [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuTSHS(h, s)

    where:

    Function calculated saturation temperature on base of thermodunamic formulas. Newton method is used to determine the root.

  253. Properties calculation result in double-phase area (saturation temperature t [unit type: temperature, unit id = 2, dimension in SI: K], vapor fraction x [unit type: vapor fraction, unit id = 3, dimension in SI: ]):

    wcuTXSHS(h, s, *t, *x)

    where:

    Function calculated saturation temperature and vapor fraction on base of thermodunamic formulas. Newton method is used to determine the root.

  254. Double phase area

    Functions of properties in double-phase area.

  255. Specific volume in double-phase area [unit type: specific volume, unit id = 4, dimension in SI: m3/kg]:

    wcuVSTX(t, x)

    where:

    This function use the functions wcuVSST and wcuVSWT which return specific volumes of steam and water at saturation line. The function use next formula: Vx = (1 - X)·Vw + X·Vs, where Vs = wcuVSST, Vw = wcuVSWT and X - vapor fraction.

  256. Specific internal energy in double-phase area [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuUSTX(t, x)

    where:

    This function use the functions wcuUSST and wcuUSWT which return specific internal energies of steam and water at saturation line. The function use next formula: Ux = (1 - X)·Uw + X·Us, where Us = wcuUSST, Uw = wcuUSWT and X - vapor fraction.

  257. Specific entropy in double-phase area [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuSSTX(t, x)

    where:

    This function use the functions wcuSSST and wcuSSWT which return specific entropies of steam and water at saturation line. The function use next formula: Sx = (1 - X)·Sw + X·Ss, where Ss = wcuSSST, Sw = wcuSSWT and X - vapor fraction.

  258. Specific enthalpy in double-phase area [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcuHSTX(t, x)

    where:

    This function use the functions wcuHSST and wcuHSWT which return specific enthalpies of steam and water at saturation line. The function use next formula: Hx = (1 - X)·Hw + X·Hs, where Hs = wcuHSST, Hw = wcuHSWT and X - vapor fraction.

  259. Specific isobaric heat capacity in double-phase area [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCPSTX(t, x)

    where:

    This function use the functions wcuCPSST and wcuCPSWT which return specific heat capacities at constant pressure (Cp) of steam and water at saturation line. The function use next formula: CPx = (1 - X)·CPw + X·CPs, where CPs = wcuCPSST, CPw = wcuCPSWT and X - vapor fraction.

  260. Specific isochoric heat capacity in double-phase area [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcuCVSTX(t, x)

    where:

    This function use the functions wcuCVDPSST and wcuCVDPSWT which return specific heat capacities at constant volume (Cv) of steam and water at saturation line in the double-phase region area. The function use next formula: CVx = (1 - X)·CVDPw + X·CVDPs, where CVDPs = wcuCVDPSST, CVDPw = wcuCVDPSWT and X - vapor fraction. Until version 5.6 this function use functions wcuCVSST and wcuCVSWT. This is not right from the point of view of thermodynamic, because don't consider the properties jump at saturation line. From version 5.6 used right formula.

  261. Sound velocity in double-phase area [unit type: velocity, unit id = 7, dimension in SI: m/sec]:

    wcuWSTX(t, x)

    where:

    This function use the function wcuKSTX for calculating sound velocity in double-phase area from the point of view of thermodynamic. But this function don't consider the flow structure. Until version 5.6 this function use next formula: Wx = (1 - X)·Ww + X·Ws, where Ws = wcuWSST, Ww = wcuWSWT and X - vapor fraction, this is not right from the point of view of thermodynamic. This is not right from the point of view of thermodynamic, because don't consider the properties jump at saturation line. From version 5.6 used right formula.

  262. Joule-Tompson coefficient in double-phase area [unit type: joule-tompson coefficient, unit id = 8, dimension in SI: K/Pa]:

    wcuJOULETHOMPSONSTX(t, x)

    where:

    Function calculated the propert Joule-Tompson coefficient in double-phase area with it's definition: JT = (dT/dP)h. Until version 5.6 this function use the functions wcuJOULETHOMPSONSST and wcuJOULETHOMPSONSWT and return value from next formula: JTx = (1 - X)·JOULETHOMPSONw + X·JOULETHOMPSONs, where JOULETHOMPSONs = wcuJOULETHOMPSONSST, JOULETHOMPSONw = wcuJOULETHOMPSONSWT and X - vapor fraction. This is not right from the definitions of Joule-Tompson. But now it is calculated proper.

  263. Thermal conductivity coefficient in double-phase area [unit type: thermal conductivity coefficient, unit id = 9, dimension in SI: W/(m·K)]:

    wcuTHERMCONDSTX(t, x)

    where:

    This function use the functions wcuTHERMCONDSST and wcuTHERMCONDSWT which return Thermal conductivity coefficients of steam and water at saturation line. The function use next formula: THERMCONDx = (1 - X)·THERMCONDw + X·THERMCONDs, where THERMCONDs = wcuTHERMCONDSST, THERMCONDw = wcuTHERMCONDSWT and X - vapor fraction.

  264. Dynamic viscosity in double-phase area [unit type: dynamic viscosity, unit id = 10, dimension in SI: Pa·sec]:

    wcuDYNVISSTX(t, x)

    where:

    This function use the functions wcuDYNVISSST and wcuDYNVISSWT which return dynamic viscosities of steam and water at saturation line. The function use next formula: DYNVISx = (1 - X)·DYNVISw + X·DYNVISs, where DYNVISs = wcuDYNVISSST, DYNVISw = wcuDYNVISSWT and X - vapor fraction.

  265. Prandtl number in double-phase area [unit type: prandtl number, unit id = 11, dimension in SI: ]:

    wcuPRANDTLESTX(t, x)

    where:

    This function use the functions wcuPRANDTLESST and wcuPRANDTLESWT which return Prandtl numbers of steam and water at saturation line. The function use next formula: PRANDTLEx = (1 - X)·PRANDTLEw + X·PRANDTLEs, where PRANDTLEs = wcuPRANDTLESST, PRANDTLEw = wcuPRANDTLESWT and X - vapor fraction.

  266. Kinematic viscosity in double-phase area [unit type: kinematic viscosity, unit id = 12, dimension in SI: m2/sec]:

    wcuKINVISSTX(t, x)

    where:

    This function use the functions wcuKINVISSST and wcuKINVISSWT which return kinematic viscosities of steam and water at saturation line. The function use next formula: KINVISx = (1 - X)·KINVISw + X·KINVISs, where KINVISs = wcuKINVISSST, KINVISw = wcuKINVISSWT and X - vapor fraction.

  267. Isoentropic exponent in double-phase area [unit type: isoentropic exponent, unit id = 13, dimension in SI: ]:

    wcuKSTX(t, x)

    where:

    Function return the value of isoentropic exponent in double-phase area with properties jump at saturation line. Until version 5.6 this function use next formula: Kx = (1 - X)·Kw + X·Ks, where Ks = wcuKSST, Kw = wcuKSWT and X - vapor fraction. But this is not right from the point of view of thermodynamic. Now it's calculated properly.

  268. Vapor fraction [unit type: vapor fraction, unit id = 3, dimension in SI: ]:

    wcuXSTV(t, v)

    where:

    This function use formula: X = (V - Vw)/(Vs - Vw), where Vw = wcuVSWT, Vs = wcuVSST.

  269. Vapor fraction [unit type: vapor fraction, unit id = 3, dimension in SI: ]:

    wcuXSTU(t, u)

    where:

    This function use formula: X = (U - Uw)/(Us - Uw), where Uw = wcuUSWT, Us = wcuUSST.

  270. Vapor fraction [unit type: vapor fraction, unit id = 3, dimension in SI: ]:

    wcuXSTS(t, s)

    where:

    This function use formula: X = (S - Sw)/(Ss - Sw), where Sw = wcuSSWT, Ss = wcuSSST.

  271. Vapor fraction [unit type: vapor fraction, unit id = 3, dimension in SI: ]:

    wcuXSTH(t, h)

    where:

    This function use formula: X = (H - Hw)/(Hs - Hw), where Hw = wcuHSWT, Hs = wcuHSST.

  272. Vapor fraction [unit type: vapor fraction, unit id = 3, dimension in SI: ]:

    wcuXSTCP(t, Cp)

    where:

    This function use formula: X = (CP - CPw)/(CPs - CPw), where CPw = wcuCPSWT, CPs = wcuCPSST.

  273. Vapor fraction [unit type: vapor fraction, unit id = 3, dimension in SI: ]:

    wcuXSTCV(t, Cv)

    where:

    This function use formula: X = (CV - CVDPw)/(CVDPs - CVDPw), where CVDPw = wcuCVDPSWT, CVDPs = wcuCVDPSST.

  274. Vapor fraction [unit type: vapor fraction, unit id = 3, dimension in SI: ]:

    wcuXSTW(t, w)

    where:

    From version 5.6 this function calculate value of sound velocity in double-phase region from isoentropic exponent, so it's proper from the point of view of thermodynamic. Until version 5.6 this function use formula: X = (W - Ww)/(Ws - Ww), where Ww = wcuWSWT, Ws = wcuWSST. The last is not right. Now calculated right value.

  275. Vapor fraction [unit type: vapor fraction, unit id = 3, dimension in SI: ]:

    wcuXSTJOULETHOMPSON(t, jt)

    where:

    This function use formula: X = (JOULETHOMPSON - JOULETHOMPSONw)/(JOULETHOMPSONs - JOULETHOMPSONw), where JOULETHOMPSONw = wcuJOULETHOMPSONSWT, JOULETHOMPSONs = wcuJOULETHOMPSONSST.

  276. Vapor fraction [unit type: vapor fraction, unit id = 3, dimension in SI: ]:

    wcuXSTTHERMCOND(t, tc)

    where:

    This function use formula: X = (TC - TCw)/(TCs - TCw), where TCw = wcuTHERMCONDSWT, TCs = wcuTHERMCONDSST.

  277. Vapor fraction [unit type: vapor fraction, unit id = 3, dimension in SI: ]:

    wcuXSTDYNVIS(t, dv)

    where:

    This function use formula: X = (DV - DVw)/(DVs - DVw), where DVw = wcuDYNVISSWT, DVs = wcuDYNVISSST.

  278. Vapor fraction [unit type: vapor fraction, unit id = 3, dimension in SI: ]:

    wcuXSTKINVIS(t, kv)

    where:

    This function use formula: X = (KV - KVw)/(KVs - KVw), where KVw = wcuKINVISSWT, KVs = wcuKINVISSST.

  279. Vapor fraction [unit type: vapor fraction, unit id = 3, dimension in SI: ]:

    wcuXSTPRANDTLE(t, pr)

    where:

    This function use formula: X = (PR - PRw)/(PRs - PRw), where PRw = wcuPRANDTLESWT, PRs = wcuPRANDTLESST.

  280. Vapor fraction [unit type: vapor fraction, unit id = 3, dimension in SI: ]:

    wcuXSTK(t, k)

    where:

    This function use formula: X = (K - Kw)/(Ks - Kw), where Kw = wcuKSWT, Ks = wcuKSST.

  281. Gases

    Functions for working with properties of gases and it's mixtures.

  282. Specific isobaric heat capacity [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcugCPIDT(id, t)

    where:

    Function calculate specific isobaric heat capacity of given gas in ideal state.

  283. Specific enthalpy [unit type: specific enthalpy, unit id = 6, dimension in SI: J/kg]:

    wcugHIDT(id, t)

    where:

    Function calculate specific enthalpy of given gas in ideal state based on integrating specific isobaric heat capacity.

  284. Specific entropy [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcugS0IDT(id, t)

    where:

    Function calculate specific entropy of given gas in ideal state based on integrating specific isobaric heat capacity, relative to temperature.

  285. Molar mass [unit type: molar mass, unit id = 17, dimension in SI: kg/mole]:

    wcugMMID(id)

    where:

    Function simply calculate molar mass of given gas/mixture.

  286. Specific entropy [unit type: specific entropy, unit id = 5, dimension in SI: J/(kg·K)]:

    wcugSIDPT(id, p, t)

    where:

    Function calculate specific entropy of given gas in ideal state based on integrating specific isobaric heat capacity, relative to temperature.

  287. New mixture identificator (id):

    wcugNEWMIX()

    Function return identificator of new mixture. This value can be used in functions when you will add components to this mixture.

    Note: Function result have type "long".

    Note: In Mathcad function have one parameter which value is not used.

  288. Addition of gas to mixture:

    wcugADDGASM2MIX(mix_id, gas_id, mass)

    where:

    Function allow to add some mass portion of existing gas to mixture. Gas identificator must be received by function wcugNEWMIX().

    Note: Function result have type "long".

  289. Addition of gas to mixture:

    wcugADDGASMO2MIX(mix_id, gas_id, moles)

    where:

    Function allow to add some portion of existing gas in moles to mixture. Gas identificator must be received by function wcugNEWMIX().

    Note: Function result have type "long".

  290. Identificator (id) of new gas from mixture:

    wcugNEWGASFROMMIX(mix_id)

    where:

    Function must be called when all components of mixture is given. And this function return identificator of gase which can be used in functions wcugCPIDT(id, t), wcugHIDT(id, t) etc. After call to this function the existing mixture is not deleted.

    Note: Function result have type "long".

  291. Removal of existing gas:

    wcugDELETEGAS(id)

    where:

    Function free memory for gas (given by gas identificator). Identificator can be only those whom received by function wcugNEWGASFROMMIX(mix_id). You can't free memory for built-in gas. After call to this function all next call to functions wcugCPIDT(id, t), wcugHIDT(id, t) and so on will raise an error.

  292. Removal of existing mixture:

    wcugDELETEMIX(id)

    where:

    Function free memory for given mixture (given by identificator). Identificator must be value received by function wcugNEWMIX(). When calling to this function the gases, calculated from given mixture (by function wcugNEWGASFROMMIX(mix_id)) is not deleted.

  293. Removal of all user-added gases:

    wcugDELETEALLGASES()

    Function free memory for all user-defined gases.

    Note: In Mathcad function have one parameter which value is not used.

  294. Removal of all mixtures:

    wcugDELETEALLMIX()

    Function free memory for all mixtures.

    Note: In Mathcad function have one parameter which value is not used.

  295. Gases count:

    wcugGETGASESCOUNT()

    Return sum of built-in and user-defined gases.

    Note: Function result have type "long".

    Note: In Mathcad function have one parameter which value is not used.

  296. Mixtures count:

    wcugGETMIXCOUNT()

    Return mixtures count defined by user.

    Note: Function result have type "long".

    Note: In Mathcad function have one parameter which value is not used.

  297. Custom Units

    Functions for working with custom units.

  298. Set custom unit type parameters:

    wcuSETCU(unit_id, a, b)

    where:

    Function sets a and b parameters for given unit type (parameter unit_id). Parameters a and b are used in translation of user type units to base units of SI (used in natural WaterSteamPro Custom Units functions). In translation formula used: CU = a * SI + b, where CU - custom unit value, a - parameter a, b - parameter b, SI - unit value in SI. The list of unit type identificators are given in documentation. WaterSteamPro Custom Units Custom Units functions used given formula to translate parameters values before and after the call to WaterSteamPro Custom Units native functions. Additional information given in documentation.

  299. Return custom unit type parameters (factor of proportionality a , addition b ):

    wcuGETCU(unit_id, *a, *b)

    where:

    Function return a and b parameters for given unit type (parameter unit_id). Parameters a and b are used in translation of user type units to base units of SI (used in natural WaterSteamPro Custom Units functions). In translation formula used: CU = a * SI + b, where CU - custom unit value, a - parameter a, b - parameter b, SI - unit value in SI. The list of unit type identificators are given in documentation. WaterSteamPro Custom Units Custom Units functions used given formula to translate parameters values before and after the call to WaterSteamPro Custom Units native functions. Additional information given in documentation.

  300. Dimension in custom units system:

    wcuSI2CU(unit_id, unit_value)

    where:

    Function calculate value in custom dimension for given unit type (parameter unit_id) and for given value in SI units system. In translation formula used: SI = (CU - b) / a, where CU - custom unit value, a - parameter a, b - parameter b, SI - unit value in SI. The list of unit type identificators are given in documentation. WaterSteamPro Custom Units Custom Units functions used given formula to translate parameters values after the call to WaterSteamPro Custom Units native functions. Values of a and b are setted by function wcuSETCU(unit_id, a, b). Additional information given in documentation.

  301. Dimension in SU:

    wcuCU2SI(unit_id, unit_value)

    where:

    Function calculate value in SI for given unit type (parameter unit_id) and for given value in custom units system. In translation formula used: CU = a * SI + b, where CU - custom unit value, a - parameter a, b - parameter b, SI - unit value in SI. The list of unit type identificators are given in documentation. WaterSteamPro Custom Units Custom Units functions used given formula to translate parameters values before the call to WaterSteamPro Custom Units native functions (the latest used SI units). Values of a and b are setted by function wcuSETCU(unit_id, a, b). Additional information given in documentation.

  302. Factor of proportionality:

    wcuGETCUA(unit_id)

    where:

    Function return a parameter for given unit type (parameter unit_id). Parameter a is used in translation of user type units to base units of SI (used in natural WaterSteamPro Custom Units functions). In translation formula used: CU = a * SI + b, where CU - custom unit value, a - parameter a, b - parameter b, SI - unit value in SI. The list of unit type identificators are given in documentation. WaterSteamPro Custom Units Custom Units functions used given formula to translate parameters values before and after the call to WaterSteamPro Custom Units native functions. Additional information given in documentation.

  303. Addition:

    wcuGETCUB(unit_id)

    where:

    Function return b parameter for given unit type (parameter unit_id). Parameter b is used in translation of user type units to base units of SI (used in natural WaterSteamPro Custom Units functions). In translation formula used: CU = a * SI + b, where CU - custom unit value, a - parameter a, b - parameter b, SI - unit value in SI. The list of unit type identificators are given in documentation. WaterSteamPro Custom Units Custom Units functions used given formula to translate parameters values before and after the call to WaterSteamPro Custom Units native functions. Additional information given in documentation.

  304. System

    System functions.

  305. Set and return relative precision in the WaterSteamPro Custom Units functions [unit type: tolerance, unit id = 25, dimension in SI: ]:

    wcuSETTOLERANCE(tolerance)

    where:

    Used in functions which requires the relative precision.

  306. Relative precision in the WaterSteamPro Custom Units functions [unit type: tolerance, unit id = 25, dimension in SI: ]:

    wcuGETTOLERANCE()

    Used in functions which requires the relative precision.

    Note: In Mathcad function have one parameter which value is not used.

  307. Set and return a mode of management of make function results more precise:

    wcuSETTOLERANCEMODE(mode)

    where:

    Used in functions where the function result can be maked more precise (function with arguments p, h and p, s). If argument equal to zero the management of tolerance disabled and the speed of functions is increased while the tolerance is decreased.

    Note: Function result have type "long".

  308. Mode of management of make function results more precise:

    wcuGETTOLERANCEMODE()

    Used in functions where the function result can be maked more precise (function with arguments p, h and p, s). If argument equal to zero the management of tolerance disabled and the speed of functions is increased while the tolerance is decreased.

    Note: Function result have type "long".

    Note: In Mathcad function have one parameter which value is not used.

  309. Set and return a mode of checking the range of functions arguments:

    wcuSETCHECKRANGEMODE(mode)

    where:

    Used in functions before calculating. If argument mode equal to zero the checking is disabled and the speed of functions is increased but may occur errors and the result may be wrong.

    Note: Function result have type "long".

  310. Mode of checking the range of functions arguments:

    wcuGETCHECKRANGEMODE()

    Return zero if the checking is disabled.

    Note: Function result have type "long".

    Note: In Mathcad function have one parameter which value is not used.

  311. Set and return a last error code:

    wcuSETLASTERROR(ErrCode)

    where:

    This function can be used for estimation of quantity of errors since all error codes are enumerated starting with zero (no error) and subsequently in increasing order. In the case of a range overrun the function returns (and sets) zero value - that means no error.

    Note: Function result have type "long".

  312. Last error code:

    wcuGETLASTERROR()

    Return last error occurred in any functions except system functions. Any function call (except system) set the error code to zero (no error).

    Note: Function result have type "long".

    Note: In Mathcad function have one parameter which value is not used.

  313. Last error description:

    wcuGETLASTERRORDESCRIPTION()

    Return last error description occurred in any function call except system functions. The result of function define in library OKAWCU6.DLL as LPCSTR (ANSI-symbols), but in ActiveX-object WSP.WSPCalculator - as BSTR (Unicode). So in Visual Basic you must use the ActiveX-version of function. If you are using non Active-X component then you must don't care about freeing memory because this function use the static buffer for return values and it's fill this buffer appropriate value when calling.

    Note: Function result have type "string".

    Note: In Mathcad function have one parameter which value is not used.

  314. Last error description:

    wcuGETLASTERRORDESCRIPTIONW()

    Return last error description occurred in any function call except system functions.

    Note: Function result have type "unicodestring".

    Note: In Mathcad function have one parameter which value is not used.

  315. Process related registration of the WaterSteamPro Custom Units:

    wcuLOCALREGISTRATION(name, key)

    where:

    Used in "Developer" license of the WaterSteamPro Custom Units. This function is obsolete and do nothing from the version 6.0 of the WaterSteamPro Custom Units.

    Note: Function result have type "void".

    Note: This function is obsolete and it is recommended don't use it.

  316. Process related registration of the WaterSteamPro Custom Units:

    wcuLOCALREGISTRATIONEXA(name, data)

    where:

    Used in "Developer" license of the WaterSteamPro Custom Units.

  317. Process related registration of the WaterSteamPro Custom Units:

    wcuLOCALREGISTRATIONEXW(name, data)

    where:

    Used in "Developer" license of the WaterSteamPro Custom Units.

  318. Set and return maximum difference between saturation temperature and input temperature for function wcuWATERSTATEAREA [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuSETDELTATS(delta)

    where:

    Function is obsolete. From version 6.0 it is not used!

    Note: This function is obsolete and it is recommended don't use it.

  319. Maximum difference between saturation temperature and input temperature for function wcuWATERSTATEAREA [unit type: temperature, unit id = 2, dimension in SI: K]:

    wcuGETDELTATS()

    Function is obsolete. From version 6.0 it is not used!

    Note: In Mathcad function have one parameter which value is not used.

    Note: This function is obsolete and it is recommended don't use it.

  320. Set and return maximum iteration's count for Newton method:

    wcuSETMAXITERATION(maxiteration)

    where:

    This number used when the Newton method used. If number of iterations more than this value the error WSP_CANT_FIND_ROOT (3) occur.

    Note: Function result have type "long".

  321. Maximum iteration's count for Newton method:

    wcuGETMAXITERATION()

    This number used when the Newton method used. If number of iterations more than this value the error WSP_CANT_FIND_ROOT (3) occur.

    Note: Function result have type "long".

    Note: In Mathcad function have one parameter which value is not used.

  322. Set and return maximum difference between pressure values at estimation of the area 3 parameters [unit type: pressure, unit id = 1, dimension in SI: Pa]:

    wcuSETDELTAPRESSURE(delta)

    where:

    Function is obsolete. From version 6.0 it is not used!

    Note: This function is obsolete and it is recommended don't use it.

  323. Maximum difference between pressure values at estimation of the area 3 parameters [unit type: pressure, unit id = 1, dimension in SI: Pa]:

    wcuGETDELTAPRESSURE()

    Function is obsolete. From version 6.0 it is not used!

    Note: In Mathcad function have one parameter which value is not used.

    Note: This function is obsolete and it is recommended don't use it.

  324. Set and return initial value for water in area 3 [unit type: density, unit id = 16, dimension in SI: kg/m3]:

    wcuSETINITWATERDENSITY(r)

    where:

    Function is obsolete. From version 6.0 it is not used!

    Note: This function is obsolete and it is recommended don't use it.

  325. Initial value for water in area 3 [unit type: density, unit id = 16, dimension in SI: kg/m3]:

    wcuGETINITWATERDENSITY()

    Function is obsolete. From version 6.0 it is not used!

    Note: In Mathcad function have one parameter which value is not used.

    Note: This function is obsolete and it is recommended don't use it.

  326. Set and return the initial value for steam in area 3 [unit type: density, unit id = 16, dimension in SI: kg/m3]:

    wcuSETINITSTEAMDENSITY(r)

    where:

    Function is obsolete. From version 6.0 it is not used!

    Note: This function is obsolete and it is recommended don't use it.

  327. Initial value for steam in area 3 [unit type: density, unit id = 16, dimension in SI: kg/m3]:

    wcuGETINITSTEAMDENSITY()

    Function is obsolete. From version 6.0 it is not used!

    Note: In Mathcad function have one parameter which value is not used.

    Note: This function is obsolete and it is recommended don't use it.

  328. Internal version of the WaterSteamPro Custom Units:

    wcuGETWSPVERSION()

    The format of version is x.yzzz where x - major version, y - minor version, zzz - revision.

    Note: In Mathcad function have one parameter which value is not used.