Welcome to WSP site

WSP is a set of programs for calculating properties of water, steam, gases and gases mixtures.

With WSP you can calculate thermophysical properties (specific volume, enthalpy, entropy, internal energy, speed of sound, isochoric and isobaric heat capacity, Joule-Thomson coefficient, kinematic and dynamic viscosity, Prandtl number, thermal conductivity, surface tension, etc) of water/steam from triple point (611 Pa, 0.01°C) to point with parameters (100 MPa, 800°C) and for pressures up to 50 MPa with temperatures up to 2000°C. You can calculate these properties with various input arguments sets: (p, t), (p, h), (p, s), (h, s), (r, h) in full above-mentioned range (including double-phase region: water-steam and saturation line). There are also functions for calculating thermodynamic properties in meta-stable region of super-cooled steam.

The source formulations for WSP (water/steam) functions are mainly the formulations from International Association for the Properties of Water and Steam – IAPWS. WSP use the latest formulations from IAPWS (IF-97, etc).

With WSP you can also calculate the thermodynamic properties (specific volume, enthalpy, entropy, internal energy, isochoric and isobaric heat capacity) of 11th gases (components of combustion products and air) and mixtures on their base for temperatures from 200K to 2500K with various input arguments sets: (t), (h), (p, s). The gases and mixtures processed as ideals gases and ideal mixtures.

You can use WSP in:

• WSP Calculator, WSP Excel Calculator or WSP Gases Calculator (these programs are available in WSP installation) to simply calculate properties.

• Excel (from Office 97 to Office 2010 and above, 32 bit or 64 bit).

• Mathcad (from Mathcad 7 to Mathcad 15).

• MATLAB (32 bit or 64 bit).

• Maple.

• Scilab (from version 5.2, 32 bit or 64 bit).

• Visual Basic.

• Visual Basic for Applications (32 bit or 64 bit).

• Delphi.

• Fortran.

• C/C++ (32 bit or 64 bit).

• ActiveX (32 bit or 64 bit).

• ASP pages.

• Windows Scripting Host (WSH).

• .Net programming (C#, VB.NET) through ActiveX object (32 bit or 64 bit).

• All other programs which can call functions with Windows DLL (32 bit or 64 bit) or ActiveX (32 bit or 64 bit) technologies.

• Also you can use WSP functions in your own programs (32 bit or 64 bit).

WSP main library with functions bodies works only in Windows (Windows 98/98SE/ME/2000/XP/2003/Vista/2008/7, 32 bit or 64 bit). Different programs may use additional system requirements.

The main advantages of WSP are:

• Simple but very powerful functions set: as example, there are a lot of functions intended to simplify the calculations. As example there are the functions to calculate properties at the end of expansion/compression processes.

• Naming conventions for functions are unified and you can easily type the function name without going to documentation.

• In WSP installation package included the modules for using WSP functions in Microsoft Excel, Mathsoft Mathcad, Waterloo Maple. And the WSP functions are the same as built-in functions of these products.

• WSP also supports main Windows technologies: Win32 Dll and ActiveX (32 bit or 64 bit). If you are programmer or familiar with these technologies you can easily call the WSP functions from your preferred applications. In WSP installation included the modules for using WSP functions in Basic, Delphi, Windows Scripting Host, HTML pages. Additional modules and samples for programmers are given in WSP SDK.

• There are many examples of using WSP functions in many applications. It is help to start using the WSP. Also you can test any of WSP function from WWW-site in Samples section.

• In all programs where WSP can be used the functions names, their parameters and return values are the same. So you can easily move from, as example, Excel to Mathcad etc.

• WSP have some certifications.

• WSP have comprehensive documentation which involves all aspects of WSP usage.

• You can work with WSP with three levels of usage:
  
  1. You can simply use WSP Calculator as powerfull tool for calculate properties at a small numbers of points.
  
  2. If you require to solve more complex tasks you can use the WSP functions in modern applications used for solving the engineering and scientific problems. And WSP functions are the same as built-in functions.
  
  3. If you develop your own programs and you require the functions for calculating properties the WSP Dll is the best choice - simply add it to your project.

Our customers are Alstom Sweden, Siemens Russia, VTI Russia, Mosenergo Russia and many other peoples from different countries.

WSP author

Konstantin Orlov - Dr., Associate Professor.

Contact information

For questions, troubleshooting and wishes about WSP please contact Konstantin A. Orlov, E-mail: okawsp@hotmail.com

Copyrights

WSP - registered program and trademark of Konstantin Orlov, 1999-2025.

Microsoft Excel, Visual Basic, Windows Scripting Host, Windows - registered trademark of Microsoft Corporation.

Mathcad - registered trademark of Mathsoft, Inc.

Maple - registered trademark of Maplesoft, a division of Waterloo Maple Inc.

Other names are the trade marks or registered trade marks of their owners.

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