Engineering
# Psychrometrics

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Moist Air

compute properties of moist air

moist air drybulb 72F, wetbulb 66F, pressure 29inHg
What is the dew point at drybulb 30C and 50% at 6000ft?
calculate a humidity ratio

humidity ratio at 28C, 45%, 2atm
humidity ratio of moist air at 86F, 60%, 37inHg
calculate absolute humidity

what is the absolute humidity of moist air at 0.87 atm 32C?
calculate specific humidity

calculate specific humidity at 10C, 30%
determine moisture content of moist air

how much water is present in 100 gallons of 60% humid air?
what is the mass of water in 30 cubic feet of moist air?
30% humidity, 50 cubic feet of air
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Sound Attenuation

compute sound absorption coefficients for moist air

absorption coefficient of sound moist air at 30C and 20%
absorption coefficient of sound moist air at 30C and 20% and 6000ft
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Heating & Cooling

analyze heating or cooling of moist air

adiabatically cool moist air at Tdry=30C to Tdry2=22C
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Humidification

analyze humidification of moist air

humidify moist air at drybulb 15C and 20% to 30C and 55%
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Mixing Air Streams

analyze mixing of moist air streams

adiabatically mix moist air at drybulb 20C wetbulb 10C with Tdry2=35C Twet2=30C