KingMan
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Summary:: MCQ about COP of chiller
The COP of a vapor compression chiller is characterized by its cooling capacity. At low cooling rates, the chiller COP is reduced by the effects of heat leaks to the environment. On the other hand, at high cooling rates, the chiller suffers from
a) the high vibration of the major moving parts
b) the inefficient operation of the expansion device
c) the high mass leaks in the vapor compression machine
d) the finite rate of heat transfer and fluid friction losses of the working fluid
I think the answer is d, anyone can assist to confirm? Much appreciated.
The COP of a vapor compression chiller is characterized by its cooling capacity. At low cooling rates, the chiller COP is reduced by the effects of heat leaks to the environment. On the other hand, at high cooling rates, the chiller suffers from
a) the high vibration of the major moving parts
b) the inefficient operation of the expansion device
c) the high mass leaks in the vapor compression machine
d) the finite rate of heat transfer and fluid friction losses of the working fluid
I think the answer is d, anyone can assist to confirm? Much appreciated.