A house is maintained at 1 atm and 24 oC, and warm air inside a house is forced to leave the house at a rate of 150 m3 /h as a r

Question

4 years ago

15

esult of outdoor air at 5 oC infiltrating into the house through the cracks. Determine the rate of net energy loss of the house due to mass transfer.

1 answer:

Natasha2012 [34] · Answer 1 · 2021-12-28T17:31:14+03:00

7 0

Answer:

1.045 KW

Explanation:

Rate of heat transfer is determined with the rate of change of specific enthalpy of the air.

Using relation

Q= mCpΔT

=рVCpΔT

$=\frac{P}{RTin_{} }$ VCp ( $(Tin_{} -Tout_{} )$

=(101.35/0.287×297)×150×1.005(24-5)/1×60×6=1.045 KW