A cooling coil removes a total heat load of 41 kW from a conditioned air. The refrigerating unit uses a 10.8-kW compressor. The ambient air around the cooling tower is at 26.15°C and 40% RH. The inlet temperature of the cooling water to the heat

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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A cooling coil removes a total
heat load of 41 kW from a
conditioned air. The refrigerating
unit uses a 10.8-kW compressor.
The ambient air around the
cooling tower is at 26.15°C and
40% RH. The inlet temperature
of the cooling water to the heat
exchanger, which allows heat
transfer between the refrigerant
and the cooling water, is 20°C. If
the mass flow rate of the cooling
water is 1 kg/s, determine: The
exit temperature of the water as
it leaves the heat exchanger in
°C. The efficiency of the cooling
tower in %.
Transcribed Image Text:A cooling coil removes a total heat load of 41 kW from a conditioned air. The refrigerating unit uses a 10.8-kW compressor. The ambient air around the cooling tower is at 26.15°C and 40% RH. The inlet temperature of the cooling water to the heat exchanger, which allows heat transfer between the refrigerant and the cooling water, is 20°C. If the mass flow rate of the cooling water is 1 kg/s, determine: The exit temperature of the water as it leaves the heat exchanger in °C. The efficiency of the cooling tower in %.
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