If outside air at 80 degrees F and 70 percent relative humidity is conditioned, what will be the resulting dew point temperature of the air just before it comes into contact with the cooling coil? Illustration GS-RA-22

Illustration GS-RA-22: the U.S. Coast Guard has not released this illustration.

Question

If outside air at 80 degrees F and 70 percent relative humidity is conditioned, what will be the resulting dew point temperature of the air just before it comes into contact with the cooling coil? Illustration GS-RA-22

Illustration GS-RA-22: the U.S. Coast Guard has not released this illustration.

Accepted Answer

Option C: 70 degrees F. Psychrometric chart analysis for air entering at 80°F and 70% relative humidity establishes a dew point temperature of 70°F, representing the saturation temperature where moisture begins to condense out of the air stream.