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How many BTU/hr needed to cool 500 CFM of air 100F degrees?

  1. Apr 18, 2015 #1
    And does it matter if you are going from 200F to 100F or 500F to 400F? ie, is it temperature dependent?

  2. jcsd
  3. Apr 18, 2015 #2


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    Staff: Mentor

    It takes approximately 1.08 BTU/hr to cool a CFM by 1 degree, so I'll let you calculate that. :wink:

    For the second part, no, it isn't quite constat over large temperature differences. At 500F, it is only about 5% larger. You can google for tables and/or equations for specific heat at various temperatures.
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