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Psychrometric Calculator Online






Calculate online thermodynamic properties of moist (humid) air.
Features:

Psychrometric Calculator
  • 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 (free).
Premium features require registration.

For the best performance use the latest version of your favourite browser.


Psychrometric Calculator








Psychrometric Calculator


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)
  • Saving data to Excel is now free
  • And much more...
Recomended browsers:
  • Internet Explorer version 7.x or later;
  • FireFox version 3.x or later;
  • Google Chrome version 4.x or later;
  • Safari version 4.x or later;
  • Opera version 10.x or later;
Older browsers may still work satisfactorily, but they will not be officially supported. Related story:

Google starts phasing out old browser support March 1st

Official Google Enterprise Blog
​Modern browsers for modern applications


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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