Description Usage Arguments Value References Examples
Return partial pressure of water vapor as a function of relative humidity and temperature.
1 | GetVapPresFromRelHum(TDryBulb, RelHum)
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TDryBulb |
A numeric vector of dry-bulb temperature in degreeF [IP] or degreeC [SI] |
RelHum |
A numeric vector of relative humidity in range [0, 1] |
A numeric vector of partial pressure of water vapor in moist air in Psi [IP] or Pa [SI]
ASHRAE Handbook - Fundamentals (2017) ch. 1 eqn 12, 22
1 2 3 4 5 | SetUnitSystem("IP")
GetVapPresFromRelHum(77, seq(0.1, 0.8, 0.1))
SetUnitSystem("SI")
GetVapPresFromRelHum(20, seq(0.1, 0.8, 0.1))
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