About the Steam Calculators

The Steam Calculators provide a variety of steam related calculations and models with comprehensive calculation descriptions and details.

User Data Not Specifically Recorded by Steam Calculators

Any user data entered into the Steam Calculators is only saved for a specific browser session. Close the browser and all data is deleted. None of Steam Calculators specifically record, maintain, or otherwise profile user data.

For EERE Web Site Policies see: http://www1.eere.energy.gov/webpolicies/

Development Details

All of Steam Calculators are part of a single standalone web-based application developed in PHP using support software libraries:

  • PHP [link]
  • Zend Framework [link]: An open source, object-oriented web application framework
  • PHPExcel [link]: A spreadsheet engine capability of reading, writing and creating Excel and OpenXML documents in PHP

To enhance user interactions, the calculators also extensively use JavaScript and the following JavaScript Libraries:

  • JavaScript [link]
  • jQuery [link]: A multi-browser JavaScript library
  • jQuery UI [link]: Provides abstractions for low-level interaction and animation

The Steam Calculators were developed by Michael B Muller for the U.S. Department of Energy and Oak Ridge National Labs.

Steam Properties

The Steam Calculators calculate all steam properties using the International Association for the Properties of Water and Steam's Thermodynamic Properties of Water and Steam Industrial Formulation, IAPWS-IF97, 2007, www.iapws.org