I have a practical engineering problem for which I really have no background on how to solve. I am looking for help, but don't even know what field of engineering would be likely to know the answer, so not quite sure where to ask. Any formulas that I might use to calculate the answer would also be useful.(adsbygoogle = window.adsbygoogle || []).push({});

My problem is this:

I have a closed space with known volume, inside which some machinery is computing X Btu/hr. I want to get rid of this heat by putting an exhaust fan in the ceiling. Obviously I would also need an intake vent that is rated for the same airflow as the exhaust fan. My question is, how do I calculate the required Cubic Feet per Minute (CFM) of the fan that would be necessary to dissipate the generated heat?

I presume this would also depend somewhat on the ambient air temperature, pressure, and humidity.

Any help would be greatly appreciated. Thanks!

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# How to calculate heat transfer?

Have something to add?

Draft saved
Draft deleted

**Physics Forums | Science Articles, Homework Help, Discussion**