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(Solved): Q3 The COP and the refrigeration rate of a refrigerator are given. The power consumption of the refr ...
Q3 The COP and the refrigeration rate of a refrigerator are given. The power consumption of the refrigerator is to be determined. Assumptions The refrigerator operates steadily. Analysis Since the refrigerator runs one-fourth of the time and removes heat from the food compartment at an average rate of
800k(J)/(h), the refrigerator removes heat at a rate of
Q_(L)^(?)=4\times (800k(J)/(h))=when running. Thus the power the refrigerator draws when it is running is
W_(net,in )^(?)=(Q_(L)^(?))/(COP_(R))=?,=,kW