Required Air Flow for Cooling
Required Air Flow for Cooling
(OP)
I have a generator in a 20 m^3 room putting out 86 kW and am trying to figure out the rate at which I need to supply/exhaust air in order to maintain a reasonable room temperature (temperature rise < 5 C).
I used the formula q=m(Cp)(dT)
using
q=86kW
m=mass of air= 25 lbs
Cp=air heat coefficient=1 kJ/kg*K
and got a temperature increase of 3.6 degrees C per second. This value seems far too high but I can not find where I went wrong. Any help/insight would be greatly appreciated.
I used the formula q=m(Cp)(dT)
using
q=86kW
m=mass of air= 25 lbs
Cp=air heat coefficient=1 kJ/kg*K
and got a temperature increase of 3.6 degrees C per second. This value seems far too high but I can not find where I went wrong. Any help/insight would be greatly appreciated.





RE: Required Air Flow for Cooling
Power is energy per time.
Mass is not a time function.
RE: Required Air Flow for Cooling
>>>>>>>>These fora should not be used to bypass your own in-depth research on the issues that affect you, nor is it intended to be a substitute for appropriate professional assistance within your field or geographical region.>>>>>>>>>>>
RE: Required Air Flow for Cooling
You will need to know the actual environmental heat rejection.
Industrial HVAC guys are good at this work.
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Plymouth Tube
RE: Required Air Flow for Cooling
RE: Required Air Flow for Cooling
Caterpillar: http://www.cat.com/cda/files/3375314/7/Engine
Cummins: http://cumminspower.com/www/literature/application...
Baldor: http://www.baldor.com/downloads/manuals/_downloads...
Justin K, P.E.
http://www.engproguides.com