# Thermodynamic and Transport Properties of Water and Steam

The site provides a feature rich, professional quality Steam Tables web application for calculation of thermodynamic and transport properties of water and steam and thermodynamic properties of combustion gases.

The steam tables application calculates 32 thermodynamic and transport properties of water and steam. It allows 16 different combinations of input variables to be used in calculations.

Input variables that can be used are:

• Pressure
• Temperature
• Enthalpy
• Entropy
• Volume
• Internal energy
• Steam quality

# Used Formulations

### Steam Tables

The "Steam Tables Calculator" supports the following formulations for calculation of properties of water and steam:

• "IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam (IAPWS-IF97)"
• "IAPWS Formulation 1995 for the Thermodynamic Properties of Ordinary Water Substance for General and Scientific Use (IAPWS-95)"

For transport properties, calculations are based on the latest internationally accepted equations that are available from IAPWS.

The "Steam Tables Spreadsheet" supports the following formulations for calculation of properties of water and steam:

• "IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam (IAPWS-IF97)"

For transport properties, calculations are based on the latest internationally accepted equations that are available from IAPWS.

### Gas Tables

The "Gas Tables Calculator" calculates caloric properties of moist air and undissociated combustion gases from 200 K up to 3300 K. It also provides a dissociation model which enables calculation of caloric properties of dissociated combustion gases at temperatures up to 2000 K, assuming complete combustion with λ > 1.05.

The model is based on the new set of equations for technical applications, called:

• "Thermodynamic Property Models for Moist air and Combustion Gases"

The formulation was developed by D. Bücker, R. Span and W. Wagner, and presented in the "Journal of Engineering for Gas Turbines and Power" (January 2003).

Steam Tables p-h Diagram

This steam tables p-h diagram is created with the Steam97 Excel Add-In from MegaWatSoft Inc., the same calculation engine is used in the Steam Tables Calculator and Steam Tables Spreadsheet.

Fig.1 Steam Tables p-h Diagram

# Services

There are three packages available:
• The Basic package is free and doesn't require registration.
• For the Premium package, registration is valid for 5 months (150 days) and it will not be extended automatically. After 5 months if you wish to continue using the application you will have to register and create a new account again.
• For the Ultimate package, registration is valid for 1 year and it will not be extended automatically. After 1 year if you wish to continue using the application you will have to register and create a new account again.

The registration includes free technical support for the duration of the subscription.

### Rent-To-Own program   NEW

The value of each subscription you purchase (1 or more) can be applied as a discount towards a purchase of the full license of our related Steam97 desktop software (Steam97 Excel Add-In , Steam9597 Excel Add-In or Steam97 Desktop Application). This also applies retroactively for all subscriptions since the beginning of 2019.

Save all subscription order IDs. When you wish to apply this discount towards a purchase of the full license on any of the mentioned desktop software send us an email and we will provide the steps to complete the purchase of the full license with the discount applied.

If you have any questions, please don't hesitate to contact sales. Contact information is provided on the following page:
Contact Us - (opens in a new tab).

Free

### Basic Package - FREE

\$0.00 Free

This is a free service.
Free Steam Tables Calculator.

• Steam Table calculations based on the Industrial Formulation (IAPWS-IF97). Calculate main properties of water and steam based on pressure and temperature input.
• Save data to Excel,
CSV or Open Office File Format.
This free service is available only on the Weekends (Saturdays and Sundays).
You don't need account for the Basic Package.

\$29.95 (150 Days)

This is a 5 months subscription fee for using the Steam Tables Calculator and the
Gas Tables Calculator online.

• Steam Table calculations based on the Scientific Formulation (IAPWS-95).
• Steam Table calculations based on the Industrial Formulation (IAPWS-IF97).
• Steam turbine calculations.
• Flash evaporator calculations.
• Mollier diagrams.
• Gas Table (combustion gases) calculations.
• Save data to Excel,
CSV or Open Office File Format.
New

### Ultimate Package

\$59.95 (1 Year)

This is a 1 year subscription fee for using the Steam Tables Spreadsheet,
Steam Tables Calculator and the
Gas Tables Calculator online.

Steam Tables Spreadsheet Features
• Steam Table calculations based on the Industrial Formulation (IAPWS-IF97).
• Create charts with calculated data.
• Save data to Excel.
• Open saved spreadsheet and continue working.
Steam Tables Calculator Features
• Steam Table calculations based on the Scientific Formulation (IAPWS-95).
• Steam Table calculations based on the Industrial Formulation (IAPWS-IF97).
• Steam turbine calculations.
• Flash evaporator calculations.
• Mollier diagrams.
• Gas Table (combustion gases) calculations.
• Save data to Excel,
CSV or Open Office File Format.

# User Settings

The following user settings, from the last session, are automatically restored:

• Units
• Theme
• Setup Panel visibility
• Output Panel visibility
• Registered users can select a new option during Login process, to be automatically logged-in in the future

# Featured video

#### The Future of Nuclear Energy

Detailed descriptions of energy markets, nuclear and power plant design and operations, follow the link Videos.

# Power Generating Capacity

See Power plant generating capacity by country on a world maps and based on different sources.

To see all available interactive maps go to the following page, Power Generating Capacity Maps.

Capacity of World's Power Plants by Country

This sample image is created with the Power Generating Capacity interactive maps.

Fig.2 Capacity of World's Power Plants by Country

# Recommended Browsers

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• Latest Chrome
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• IE 11.0