About Steam 97 ActiveX Dll Library
The Steam97 ActiveX DLL library calculates 30 thermodynamic and transport properties
of water and steam, and provides access to 8 constant properties used by the steam tables solver.
The library supports SI and English units.
It allows 16 different combinations of input variables to
be used for calculations.
Input variables that can be used are:
- pressure,
- temperature,
- enthalpy,
- entropy,
- volume,
- internal energy,
- and steam quality.
Main features of the library:
- Thoroughly tested with 100 million points generated by random number generator;
- Developed in C++ for maximum speed;
- Thread safe;
- The library can be used on any win32 / win64 platform;
- Also the library can be used in any programming language that supports ActiveX (COM) components;
- Full .NET support (C#, VB.NET);
- Uses special proprietary technology for speed optimization.
Based on our measurements speed is improved from 3.87 to 6 times over standard version;
- Royalty free.
- Used by thousands of Engineering Professionals from all around the world.
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Used Formulations
The library uses new industrial formulation for steam tables, called
"IAPWS Industrial Formulation
1997 for the Thermodynamic Properties of Water and Steam (IAPWS-IF97)", and replaces
the previous industrial formulation for steam tables, IFC-67.
IAPWS-IF97 improves significantly both accuracy and speed of the calculation of
the thermodynamic properties compared with the old formulation.
For transport properties calculations are based on the latest internationally accepted
equations also available from IAPWS.
Steam Properties
The following termodynamic and transport properties can be calculated with Steam97 ActiveX DLL library:
| Calculable properties in SI or E units - Steam97 ActiveX DLL v1.2 |
| 1 |
Pressure |
| 2 |
Temperature |
| 3 |
Density |
| 4 |
Specific volume |
| 5 |
Specific enthalpy |
| 6 |
Specific entropy |
| 7 |
Specific internal energy |
| 8 |
Specific isobaric heat capacity |
| 9 |
Specific isochoric heat capacity |
| 10 |
Speed of sound |
| 11 |
Isentropic exponent |
| 12 |
Specific Helmholtz free energy |
| 13 |
Specific Gibbs free energy |
| 14 |
Compressibility factor |
| 15 |
Steam quality |
| 16 |
Region |
| 17 |
Isobaric volume expansion coefficient |
| 18 |
Isothermal compressibility |
| 19 |
Partial derivative (dV/dT)p |
| 20 |
Partial derivative (dV/dP)T |
| 21 |
Partial derivative (dP/dT)v |
| 22 |
Partial derivative (dP/dV)T |
| 23 |
Isothermal Joule-Thomson coefficient |
| 24 |
Joule-Thomson coefficient |
| 25 |
Dynamic viscosity |
| 26 |
Kinematic viscosity |
| 27 |
Thermal conductivity |
| 28 |
Thermal diffusivity |
| 29 |
Prandtl number |
| 30 |
Surface tension |
| Constants used in calculation in SI or E units |
| 1 |
Specific gas constant |
| 2 |
Molar gas constant |
| 3 |
Molar mass |
| 4 |
Critical temperature |
| 5 |
Critical pressure |
| 6 |
Critical density |
| 7 |
Triple-point temperature |
| 8 |
Triple-point pressure |
Range of Validity
The entire set of equations of IAPWS-IF97, used by the library
for calculation of thermodynamic properties,
is defined by the following temperature and pressure range:
- 273.15 K <=
T < = 1073.15 K p < = 100 MPa
- 1073.15 K
<
T < = 2273.15 K p < = 10 MPa
Screenshots
1. Steam97 ActiveX Dll in Object Browser (Visual Studio)
Click here for a larger image.
2. Steam97 ActiveX Dll in c# code editor
Click here for a larger image.
3. Sample application (in c# and VB.NET) included with the library
Click here for a larger image.
Downloads
Steam97 ActiveX DLL demo - version 1.2 is available on request.
If you would like to try the demo, contact us at
sales@megawatsoft.com .
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IMPORTANT:
Try the fully functional version of the Steam97 ActiveX DLL library online.
Our web site "Steam Tables Online" provides a "Steam Tables Calculator" which
is powered by the Steam97 ActiveX DLL. It is used by thousands of Engineering Professionals from all around the world.
So far, the library has successfully completed
30072 hours of work under heavy load in a multi
user environment on the Internet. Visit the steam tables web application
and try it yourself.
|
Price info
Prices subject to change without notice!
| Steam97 ActiveX DLL version 1.2 |
| 1-3 licenses |
USD 2995.00 per copy |
| 4 > licenses |
USD 2495.00 per copy |
| Team license |
USD 9995.00 |
The Team license is valid for the whole team, regardless of the number of developers.
Note: when purchasing a license you also receive one year subscription for free.
The one year subscription may include minor version updates (1.3, 1.4, 1.5 up to, but not including version 2.0)
and e-mail technical support.
If you have any questions, please don't hesitate to contact our sales:
sales@megawatsoft.com
General Information
For immediate access to the Steam97 ActiveX DLL, you may purchase and download our product using automated and secure online
ordering system. After ordering, you will receive a notification mail with further instructions, your
password (required during installation) and the retail version download location.
The Registration includes a free subscription program. Each Registered user will be receiving bug
fixes and technical support for the registered version within one year.
Shipping by the postal mail is not available.
How to order
1. Internet ordering
Available ordering options (open an order form to select):
- Credit Card (Visa®, Mastercard®, American Express®, Discover®);
- PayPal.
To buy a specific number of licenses for the
Steam97 ActiveX DLL click the button:
or to purchase a
Team License contact sales at:
sales@megawatsoft.com.
2. Bank Direct Payment
If you prefer to pay for the product by "Bank Direct Payment", contact sales at:
sales@megawatsoft.com.