CFM Exhaust requirements
CFM Exhaust requirements
(OP)
Have an enclosed space with 1700 c.f. Has 1 intake opening of 6 s.f.at floor level. Has 2 ac compressors mounted on floor putting out combined cfm exhaust of 3400. In addition,there is radiant heat gain from sun through 378 s.f. of roof. Two part question: Based on existing intake size, how many cfm roof mounted exhaust fan would it take to remove heat? Would it be necessary to adjust intake opening size? Good luck with this one.





RE: CFM Exhaust requirements
A calculation would be required to find the static pressure need to overcome the amount of air through the hole.
Not a difficult procedure, but can be tediuos/frustrating if it is not your profession.
knowledge is power
RE: CFM Exhaust requirements
If heat gain through the roof was a zero factor, could you answer
both parts of the intake air and exhaust requirements then?
RE: CFM Exhaust requirements
RE: CFM Exhaust requirements
You still need to figure the cfm before we can worry about the intake size. So as chicopee stated what's the Energy in? How much heat is the compressors putting into the space?
knowledge is power