ghvr unit 35 comfort and pyschrometrics Review Questions

For a room to be comfortable the following conditions are considered average:_________*F dry bulb and _________ % relative humidity

75 *F and 50%

In order for an air-conditioning coil to remove moisture from the air, it must be below the _______ _____ temperature of the air.

Dew Point

perspiration cools the body by

Latent heat removal through perspiration evaporation

lower room temperatures can be off set in winter by

Raising the relative humidity

Air that contains all of the moisture that is can hold is know as

Saturated

Relative humidity is measured using a

Sling pyschrometer

Name the four comfort factors

Temperature, Humidity, Air movement, & Air cleanliness.

state three ways the body gives off heat

conduction, convection, radiation, ( latent heat of evaporation)

Name the two unknowns that are easiest to obtain for making lots on the psychrometric chart

wet-bulb and dry-bulb temperatures