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Formulas underlying Psychrometric Charts.

ircoha · 2008-03-01 21:07:59

I have the charts from the CIBSE as well as the tables. Just wondering if anyone has the formulas that underly the charts. For example if the db temp is 25 degrees C and the % saturation is 80% then the moisture content is 0.016 kg/kg da Thanks

01-03-2008 09:07PM

#1

ircoha

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I have the charts from the CIBSE as well as the tables.

Just wondering if anyone has the formulas that underly the charts.

For example if the db temp is 25 degrees C and the % saturation is 80% then the moisture content is 0.016 kg/kg da

Thanks

0

Comments

#2 03-03-2008 12:49AM

Timmaay

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Posts: 11330

If I remember correctly back to college, the psychrometric equations are made up of crazy sequences, and the point of the charts are that they are way less effort than solving the eqns each time. Try the Ashrae handbook fundamentals, they're the best referance for anything to do with hvac.

0