22. A refrigeration system consumed 28,800 kW-hr per month of energy. There is 20% of

energy lost due to the cooling system of the compressor and the motor efficiency is 90%. If the COP of the system is 6, find the mechanical efficiency of the compressor.

RE = 172.8 kW

A. 43.15 TR

B. 46.15 TR

C. 49.15 TR

D. 41.15 TR