Question 3 (15 points)
A pump in the cooling water loop of a chiller circulates 283 GPM of water. It is known that the
temperature difference between the inlet and outlet for the chilled water loop and cooling water
loop is 10°F. If the heat rejection factor for this chiller is 1.18, what is the capacity of the chiller
in tons of refrigeration?
Note: give your answer without decimals.
283 GPM
cooking water
Pump
Chiller
AT = 10°F
heat rejection = 1.18
tons of refrigeration
ineat rejection
1.18
BHP CFM Pf
6350-90
QC = GPM 5000 = 283.5000
=
1415000 Btu/hr
141500 Btu/hr
=
119915 Bu
35 kW
1.18
1
3412 Btu/kun
.746W/hp
47.11 Kp