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(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

(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

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 a, b and c 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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