A 100 x 200 mm ammonia compressor with a compression efficiency of 82% operates with a suction pressure of 291.57 kpa and a condenser pressure of 1203.7 kPa at 22 rps. The refrigerant cools 100 kg/min of water from 25°C to 2°C and assuming 5% of the useful refrigerating effect is lost due to the process of cooling, determine: a) RE in tons of refrigeration hz = 1653 kJ/kg b) mass flow rate of ammonia c) actual work of compression kW

A 100 x 200 mm ammonia compressor with a compression efficiency of 82% operates with a suction pressure of 291.57 kpa and a condenser pressure of 1203.7 kPa at 22 rps. The refrigerant cools 100 kg/min of water from 25°C to 2°C and assuming 5% of the useful refrigerating effect is lost due to the process of cooling, determine: a) RE in tons of refrigeration hz = 1653 kJ/kg b) mass flow rate of ammonia c) actual work of compression kW

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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Refrigerators currently being manufactured in the United States are using______as their refrigerant.
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