Humidification REAL Flashcards
Humidification
*Heat and Mass Transfer:
-Liquid to Vapor
*Increase humidity of air, Cool liquid water
Dehumidification
*Opposite of humidification
*Condensing out the water vapor from the air to decrease its humidity.
Cooling Water:
Humidification
Dehumidification
*Humidification
uses hot liquid
*Dehumidification
Uses cold liquid
Humidification Process:
Sensible heating / cooling
Constant humidity
Humidification Process:
Adiabatic
Constant wet bulb temperature
Humidification Process:
Heating and Humidifying
Increased humidity and absolute humidity
Psychrometry
Systematized knowledge of the properties of air and water.
Humidity
S=Pa/Pb = Pa/ (P-Pa)
Relative Humidity
%RH=Pa*100%/Pa,sat
Percentage Humidity
%H = H/H,max
=100%*(Pa/P-Pa) / (Pa,sat/P-Pa,sat)
Dew Point
Temperature at which the VAPOR just starts to CONDENSE
Bubble Point
Temperature at which the LIQUID just starts to BOIL
Humid Volume
Volume gas / Mass Dry Gas
Humid Heat
Heat energy necessary to increase the temperature of a unit mass of gas plus whatever vapor it may contain by 1°C or 1°F.
Adiabatic Saturation Temperature
Temperature if the gas were saturated in an adiabatic process