Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations LittleInch on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!
Latent cooling (Moisture Cooling)
- Thread starter Canfanman
- Start date
KiwiMace
Mechanical
- Feb 2, 2006
- 1,012
Qt = m.dh
Read h from your Psych chart at each state point and use mass of air. This is the total heat; latent + sensible. You can easily calculate the sensible and subtract, or use the slope of the line to determine the sensible heat ratio from the protractor tool usually printed on the chart.
In water terms, you are adding or removing moisture by evaporation or condensation. So optionally, you can determine the total moisture removed from the absolute humidity scale and use:
Ql = hfg.dW
The heat transfer is 2465kJ/kg or 1060 BTU/lb x the mass of water removed.
Read h from your Psych chart at each state point and use mass of air. This is the total heat; latent + sensible. You can easily calculate the sensible and subtract, or use the slope of the line to determine the sensible heat ratio from the protractor tool usually printed on the chart.
In water terms, you are adding or removing moisture by evaporation or condensation. So optionally, you can determine the total moisture removed from the absolute humidity scale and use:
Ql = hfg.dW
The heat transfer is 2465kJ/kg or 1060 BTU/lb x the mass of water removed.
- Status
Similar threads
- Locked
- Question
- Locked
- Question
