Air entering a dryer has a temperature (dry bulb) of 60°C and a dew point of...
Air entering a dryer has a temperature (dry bulb) of 60°C and a dew point of 26.7°C. Using the humidity chart, determine the actual humidity H, percentage humidity HP, humid heat cS and humid volume vH.
Homework Answers
dew point = 26.7*C
% saturation = 100%
From the Humidity chart for 100% humidity
actual humidity at 60 C
H = 0.0225 kg H2O/kg dry air
% Humidity = 14%
Humid heat Cs = 1.005 + 1.88H
= 1.005 + 1.88*0.0225
= 1.047 kJ/kg dry air - K
Humid volume = 2.83*10^-3 T + 4.56*10^-3 T H
= 2.83*10^-3 * (60 +273) + 4.56*10^-3 (60 +273) (0.0225)
= 0.977 m3/kg dry air
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