About Steam 97 Application
The steam tables application calculates 30 thermodynamic and transport properties
of water and steam is SI and English units. It allows 16 different combinations of input variables to
be used for calculations.
Input variables that can be used are:
- Internal energy
- Steam quality
Main features of the application:
- Professional quality, industrial strength software
- Based on the international standard formulation
- Developed in C++ for maximum speed
- Copy and paste calculated results to Excel or other applications
- Copy and paste steam diagrams to Excel or other applications
- One year free technical support
The following figure shows the log P-H diagram generated with Steam97 application.
h-s diagram generated with Steam97 application
Here is the list of currently available diagrams generated by the application:
- T-S Diagram
- T-H Diagram
- H-S Diagram
- H-S Vapor Diagram
- P-T Diagram
- log P-S Diagram
- log P-H Diagram
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 97 Application Functionality
The Steam97 is a standard win32 application. It is very ease to use, after selection of units (SI or English are supported)
and completed calculation for entered parameters, results are displayed in the output table.
Obtained results can be saved to a file, printed, or copy and pasted to Excel or any other application.
Calculated points can be displayed on seven different steam diagrams and steam diagrams can be copy and pasted
to Excel or any other application that allows image insertion.
Steam diagrams are available only in SI units.
For calculations performed in English units, points are first converted to SI units and then displayed on SI diagrams.
If you need to display points on steam diagrams in English units, you can use our web application Steam Tables Online.
Installation of the application requires administrative privileges.
Use of the applications requires standard user privileges or better.
The following thermodynamic and transport properties can be calculated with the Steam 97 Application:
|Calculable properties in SI or E units - Steam97 Application v4.1
|| Specific volume|
|| Specific enthalpy|
|| Specific entropy|
|| Specific internal energy|
|| Specific isobaric heat capacity|
|| Specific isochoric heat capacity|
|| Speed of sound|
|| Isentropic exponent|
|| Specific Helmholtz free energy|
|| Specific Gibbs free energy|
|| Compressibility factor|
|| Steam quality|
|| Isobaric volume expansion coefficient|
|| Isothermal compressibility|
|| Partial derivative (dV/dT)p|
|| Partial derivative (dV/dP)T|
|| Partial derivative (dP/dT)v|
|| Partial derivative (dP/dV)T|
|| Isothermal Joule-Thomson coefficient|
|| Joule-Thomson coefficient|
|| Dynamic viscosity|
|| Kinematic viscosity|
|| Thermal conductivity|
|| Thermal diffusivity|
|| Prandtl number|
|| Surface tension|
Range of Validity
The entire set of equations of the IAPWS-IF97, used by the application 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 < = 50 MPa
Fig.1 Steam table regions defined in the IAPWS-IF97
1. General Properties View
Fig 1. Steam97 Application - General Properties View
2. log P-H Diagram View
Fig 2. Steam97 Application - logP-H Diagram
To install the application successfully you must have administrative privileges on your computer.
Steam97 Desktop Application
- Download Steam97 Desktop Application version (4.1) - demo
You can also evaluate the Steam Tables library (based on IAPWS-IF97) online, visit Steam Tables Calculator web application.
It uses the same calculation engine as the Steam97 desktop application.
Prices subject to change without notice!
|Steam97 Application version 4.1
||USD 199.95 per copy|
||USD 174.95 per copy|
|21 > licenses
||USD 149.95 per copy|
|Company wide license
Each license also includes the following:
- One year free e-mail technical support
- One year free minor version updates if available (for example 4.2, 4.x up to, but not including version 5.0)
If you have any questions, please don't hesitate to contact sales at:
For quick access to the Steam97 Application, 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®)
To buy a specific number of licenses for the Steam97 Application click the button:
or to purchase a Company Wide License contact sales at:
2. Bank Direct Payment
If you prefer to pay for the product by "Bank Direct Payment", contact sales at: firstname.lastname@example.org.