Quiz Eight Flashcards
What is psychrometrics?
Psychrometrics is the study and estimation of thermodynamic properties of air/water vapor mixtures
What are the unites of specific volume?
m^3/kg
What are the units of specific heat?
kJ/kg C
What are the units for enthalpy?
kJ/kg
What is dry bulb temperature?
Dry bulb temperature is the temperature of the air
What is the Gibbs Dalton law?
The barometric or total pressure of moist air is equal to the sum of the partial pressure of dry air plus the partial pressure of water vapor
What is dew point temperature?
Dew point temperature is the temperature at which condensation of moisture occurs - non adiabatic cooling
What is relative humidity?
Relative humidity is the ratio of partial pressure of water vapor in a given air mixture to the partial pressure of saturated air
What is wet bulb temperature?
Wet bulb temperature is measured by using a standard thermometer covered with a wet wick at its end - moisture evaporates from the wick into the unsaturated air (adiabatic)
What is the difference between dry bulb and wet bulb temperature?
The difference between wet bulb and dry bulb temperature is the measure of the moisture content of the air mixture
What is an adiabatic saturation?
An adiabatic saturation is a process in which no net heat is gained or lost by the total system
What is dehumidification?
Dehumidification is achieved by cooling the air beyond its dew point
