SP3 The refrigerator shown in Fig. SP3 operates at steady state with a coefficient of

  • June 25, 2021

SP3 The refrigerator shown in Fig. SP3 operates at steady state with a coefficient of performance of 4.5 and power input of 0.8 kW. Energy is rejected from the refrigerator to the surroundings at 20 C by heat transfer from metal coils whose average surface temperature is 28 C. Determine: (a)the rate energy is rejected, in kW. (b)the lowest theoretical temperature inside the refrigerator, in K. (c)the maximum theoretical power, in kw, that could be developed by a power cycle operating between the coils and the surroundings. Would you recommend making use of this opportunity for developing power? Refrigerator=4.5 Surroundings, 20C Coils, 28C CH0.8kW Fig. SP3

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