Description Usage Arguments Value References Examples
Return humidity ratio given water vapor pressure and atmospheric pressure.
1 | GetHumRatioFromVapPres(VapPres, Pressure)
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VapPres |
A numeric vector of partial pressure of water vapor in moist air in Psi [IP] or Pa [SI] |
Pressure |
A numeric vector of atmospheric pressure in Psi [IP] or Pa [SI] |
A numeric vector of humidity ratio in lb_H2O lb_Air-1 [IP] or kg_H2O kg_Air-1 [SI]
ASHRAE Handbook - Fundamentals (2017) ch. 1 eqn 20
1 2 3 4 5 | SetUnitSystem("IP")
GetHumRatioFromVapPres(seq(0.4, 0.6, 0.01), 14.175)
SetUnitSystem("SI")
GetHumRatioFromVapPres(seq(3000, 4000, 100), 95461)
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