hasaward.blogg.se - Ashrae psychrometric chart dew point

9 f ( wet bulb temperature, dew point temperature, pressure ).

8 f ( wet bulb temperature, relative humidity, pressure ).

7 f ( dry bulb temperature, volume of moist air, pressure ).

6 f ( dry bulb temperature, entropy of moist air, pressure ).

5 f ( dry bulb temperature, enthalpy of moist air, pressure ).

4 f ( dry bulb temperature, humidity ratio, pressure ).

3 f ( dry bulb temperature, dew point temperature, pressure ).

2 f ( dry bulb temperature, wet bulb temperature, pressure ).

1 f ( dry bulb temperature, relative humidity, pressure ).

To calculate properties, Psychrometric Calculator allows up to 21 different combinations of input variables in SI or English units:

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.

Formulations for the thermodynamic properties of the saturated phases of H2O from 173.15 K to 473.15 K, W.

Hyland and Wexler presented the equation of state in: These formulations are approved by ASHRAE (American Society of Heating, Refrigeration and Air-conditioning Engineers) as documented in the 1997 ASHRAE Handbook "Fundamentals". It allows 21 different combinations of input variables to be used for calculations.Ĭalculation of thermodynamic properties in the application is based on the most exact formulations of thermodynamic properties of moist air currently available. The HumidAirWeb application calculates 35 thermodynamic properties of humid (moist) air. Thermodynamic Properties of Humid (Moist) Air