Ammonia enters the compressor of a refrigeration plant and is compressed from 190.2kPa, 98% dry to 972.2kPa with 50K of superheat. The refrigerant leaves the condenser as a liquid at 24°C and circulates with a mass flowrate of 5kg/min. Calculate: (a). compressor power (b). heat rejected in the condenser per minute (c). coefficient of performance (d). condition at entry to evaporator (e). plant capacity if enthalpy of fusion is 333kJ/kg

Ammonia enters the compressor of a refrigeration plant and is compressed from 190.2kPa, 98% dry to 972.2kPa with 50K of superheat. The refrigerant leaves the condenser as a liquid at 24°C and circulates with a mass flowrate of 5kg/min. Calculate: (a). compressor power (b). heat rejected in the condenser per minute (c). coefficient of performance (d). condition at entry to evaporator (e). plant capacity if enthalpy of fusion is 333kJ/kg

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

Chapter22: Condensers

Section: Chapter Questions

Problem 8RQ: Four methods for controlling head pressure in an air-cooled condenser are ______, ______, _______,...

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Condensers in these refrigerators are all_______cooled.
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