For a 4-cylinder NH3 compressor with 10 cm bore and 8 cm stroke running at 750 rpm, the condenser temperature is 40℃. For a clearance ratio of 4, find the volumetric efficiency, mass flow rate, and work requirement for evaporator temperatures of -10℃, 0℃ and 10℃ and show that power requirement has a maximum with respect to evaporator temperature.
power requirement has a maximum with respect to evaporator temperature= 20℃
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