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

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

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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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
Transcribed Image Text: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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