A 3 cylinder 100 x 200 mm ammonia compressor with a compression efficiency of 86% operates with a suction pressure of 291.57 kPa and a condenser pressure of 1557 kPa at 18 rps. The refrigerant cools 1.8 kg/s of water from 28 0C to 3 0C and assuming 7 % of the useful refrigerating effect is lost due to the process of cooling and h2 = 1710 kJ/kg and clearance volume is 7 %. determine: A. Refrigerating capacity B. mass flow of ammonia C. ideal work of compression

A 3 cylinder 100 x 200 mm ammonia compressor with a compression efficiency of 86% operates with a suction pressure of 291.57 kPa and a condenser pressure of 1557 kPa at 18 rps. The refrigerant cools 1.8 kg/s of water from 28 0C to 3 0C and assuming 7 % of the useful refrigerating effect is lost due to the process of cooling and h2 = 1710 kJ/kg and clearance volume is 7 %. determine: A. Refrigerating capacity B. mass flow of ammonia C. ideal work of compression

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter45: Domestic Refrigerators And Freezers

Section: Chapter Questions

Problem 12RQ: Refrigerators currently being manufactured in the United States are using______as their refrigerant.

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