please answer j and k only 2. An R22 standard refrigeration system carries a refrigerating load of 82 kW. The suction and discharge pressuresof the compressor are 354.3 kPa and 1460.1 kPa respectively. The liquid refrigerant is subcooled by 4° beforeentering the expansion valve and the vapor is superheated by 5° before entering the compressor. The twin-cylinder, single-actingefficiency, 82%; clearance volume, 6%; and mechanical efficiency, 78%compressor operates at 1680 rpm; stroke-to-bore ratio, 1.20; actual volumetricDetermine(a) mass flow rate of refrigerant in kg/s(b) mass flow rate of refrigerant per ton of refrigeration in kg/s-ton(c) work on compressor in kW(d) work on compressor per ton of refrigeration(e) coefficient of performance(f) condenser load in kJ/s(g) volume capacity of compressor in L/s(h) compression ratio(i) clearance volumetric efficiency in %1) bore and stroke of compressor in mm(k) power of motor to drive the compressor12 answers

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Answered: G) bore and stroke of compressor in mm…

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G) bore and stroke of compressor in mm (k) power of motor to drive the compressor

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 7RQ: When a standard-efficiency air-cooled condenser is used, the condensing refrigerant will normally be...

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please answer j and k only

2. An R22 standard refrigeration system carries a refrigerating load of 82 kW. The suction and discharge pressures
of the compressor are 354.3 kPa and 1460.1 kPa respectively. The liquid refrigerant is subcooled by 4° before
entering the expansion valve and the vapor is superheated by 5° before entering the compressor. The twin-
cylinder, single-acting
efficiency, 82%; clearance volume, 6%; and mechanical efficiency, 78%
compressor operates at 1680 rpm; stroke-to-bore ratio, 1.20; actual volumetric
Determine
(a) mass flow rate of refrigerant in kg/s
(b) mass flow rate of refrigerant per ton of refrigeration in kg/s-ton
(c) work on compressor in kW
(d) work on compressor per ton of refrigeration
(e) coefficient of performance
(f) condenser load in kJ/s
(g) volume capacity of compressor in L/s
(h) compression ratio
(i) clearance volumetric efficiency in %
1) bore and stroke of compressor in mm
(k) power of motor to drive the compressor
12 answers

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