Air Mixture Flashcards
What is atmospheric air?
Air-water vapor mixture
What is dry air?
Air with no vapor content
What assumptions can be made for atmospheric air?
Ideal Gas
What is the pressure of atmospheric air?
Partial pressure of dry air + Partial pressure of vapor
What is the enthalpy of water vapor in air equal to?
Enthalpy of the saturated vapor at the same temperature
What is specific or absolute humidity omega?
The mass of water vapor present in air per unit mass of dry air
What is relative humidity?
The ratio of amount of moisture air holds to maximum moisture it can hold at the same temperature
What is something to remember about enthalpy of atmospheric air?
The enthalpy of atmospheric air is expressed per unit mass of dry air, instead of per unit mass of the air–water vapor mixture.
What is dry bulb temperature?
The ordinary temperature of atmospheric temperature
What is dew point temperature?
The temperature at which condensation begins if the air is cooled at a constant pressure
What is adiabatic saturation temperature?
The temperature air attains after flowing over water in a long adiabatic channel until it is saturated
