The resulting clean and saturated air
from the centrifuge then enters the sphere.
Cooling this to 55 [degrees]F saturated air
across typical AC cooling coils as previously described on the psychrometric chart, involves a change in enthalpy of 22 Btu/lb (= 45.2 -23.2 Btu/lb).
When there is no exchange of energy with the environment, cooling of the atmosphere is due to expansion, adding another perspective: "dry adiabais" and "moist adiabats," which are lines of constant lapse rates for unsaturated and saturated air
(RH expresses the moisture level in air as a percentage of the moisture in completely saturated air
at the same temperature and pressure.) The source of humidity inside a building is almost always air from outside, and it's up to the building's HVAC system to lower it.
This saturated air
and liquid water leads to corrosion, pipe scale and microbiological growth.
and [T.sub.m] represents the melting point of water-ice, [T.sub.a] is the air temperature, [T.sub.w] is the plate temperature, [p.sub.v] is the partial vapor pressure of the air, [p'.sub.sat] is the vapor pressure of saturated air
, and [p'.sub.sat,f] is the vapor pressure of saturated air
at the frost surface temperature (assumed here to be -1[degrees]C).
Any humidity added to the saturated air
will be condensed.
The dewpoint temperature is the "saturated air
temperature" at which condensation will occur.
A typical air-handling unit in a variable air volume (VAV) system supplies saturated air
at 55[degrees]F (12.8[degrees]C).
For each degree Celsius of warming, 7% more water is available to rain down from saturated air