Re: [EnergyPlus_Support] question about motor heat of the fan

[Joseph Lewis <fortierengineer@xxxxxxxxx>]

The Fan model also calculates the heat added to the air stream due to the static pressure increase as the air goes through the fan, which I believe is what you are seeing.  For more info about how it is exactly modeled see the Engineering docs starting on page 426 in Adobe counting or 388 in actual page numbering.

zhaicq98 <chaoqinz@xxxxxxxxxxxxxx> wrote:

As I read from the inputoutput reference, Motor in Air Stream 
Fraction in the Fan:Simple:Onoff means the fraction of the motor heat 
that is added to the air stream. I input a zero for this entry, but I 
found that the enthalpy of the air going into and coming from the fan 
is still different. Can anyone explain this to me? 

Thanks!





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