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Psychrometric Calculator Online






Professional Quality Psychrometric Calculator

Calculate Thermodynamic Properties of Moist (Humid) Air
Features:

Psychrometric Calculator
  • Based on a real gas formulation, there are no simplifications;
  • No installation required;
  • Always work with the latest version;
  • Access it from any computer in the world;
  • Accurate and easy to use;
  • Save data to Excel.
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Psychrometric Calculator








Psychrometric Calculator


Description

The site provides a fully functional, professional quality web application for calculation of thermodynamic properties of moist air. The "Psychrometric Calculator" is based on the most accurate formulations for thermodynamic properties of moist air currently available. These formulations are approved by ASHRAE (American Society of Heating, Refrigeration and Air-conditioning Engineers) as documented in the 1997 ASHRAE Handbook "Fundamentals". Hyland and Wexler presented the equation of state in:
  • Formulations for the thermodynamic properties of the saturated phases of H2O from 173.15 K to 473.15 K, W. Hyland and A.Wexler, ASHRAE Transactions, 89(2A) 500-519, 1983.
  • Formulations for the thermodynamic properties of dry air from 173.15 K to 473.15 K, and of saturated moist air from 173.15 K to 372.15 K, at pressures to 5 MPa, R. W. Hyland and A. Wexler, ASHRAE Transactions, 89(2A) 520-535, 1983.


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Friday, February 5, 2010

Psychrometric Calculator v2.0 released
  • New user interface
  • Added support for all modern browsers
  • Different themes (gray=default, blue and slate)
  • And much more...
Recomended browsers:
  • Opera version 10.60 (super fast);
  • Google Chrome version 5.0 (super fast);
  • Safari version 5.0 (super fast);
  • FireFox version 3.6.6 (fast);
  • Internet Explorer version 8.0 (slow);