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A refrigerant 22 , four-cylinder, 85 mm x 70 mm compressor operating at 28 rev/sec, condensing temp of 38OC and an evaporating temp of-2OC carries a refrigerating load of 112 kW. The motor driving the compressor has an efficiency of 92% and draws 32.5 kW. There is a 5OC subcooling and 7OC superheating of the suction gas entering the compressor. Compute (a) the actual volumetric efficiency (b) the compression efficiency.

A refrigerant 22 , four-cylinder, 85 mm x 70 mm compressor operating at 28 rev/sec, condensing temp of 38OC and an evaporating temp of-2OC carries a refrigerating load of 112 kW. The motor driving the compressor has an efficiency of 92% and draws 32.5 kW. There is a 5OC subcooling and 7OC superheating of the suction gas entering the compressor. Compute (a) the actual volumetric efficiency (b) the compression efficiency.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A refrigerant 22 , four-cylinder, 85 mm x 70 mm compressor operating at 28 rev/sec, condensing temp of 38OC and an evaporating temp of-2OC carries a refrigerating load of 112 kW. The motor driving the compressor has an efficiency of 92% and draws 32.5 kW. There is a 5OC subcooling and 7OC superheating of the suction gas entering the compressor. Compute (a) the actual volumetric efficiency (b) the compression efficiency.
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