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As shown in the figure, Refrigerant 22 enters the compressor of an air conditioning unit operating at steady state at 40°F, 80 lbf/in2 and is compressed to 160°F, 200 Ib;/in². The refrigerant exiting the compressor enters a condenser where energy transfer to air as a separate stream occurs, and the refrigerant exits as a liquid at 200 lbf/in?, 90°F. Air enters the condenser at 75°F, 14.7 Ibę/in? with a volumetric flow rate of 1250 ft/min and exits at 110°F. Neglect stray heat transfer and kinetic and potential energy effects, and assume ideal gas behavior for the air.

As shown in the figure, Refrigerant 22 enters the compressor of an air conditioning unit operating at steady state at 40°F, 80 lbf/in2 and is compressed to 160°F, 200 Ib;/in². The refrigerant exiting the compressor enters a condenser where energy transfer to air as a separate stream occurs, and the refrigerant exits as a liquid at 200 lbf/in?, 90°F. Air enters the condenser at 75°F, 14.7 Ibę/in? with a volumetric flow rate of 1250 ft/min and exits at 110°F. Neglect stray heat transfer and kinetic and potential energy effects, and assume ideal gas behavior for the air.

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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As shown in the figure, Refrigerant 22 enters the compressor of an air conditioning unit operating at steady state at 40°F, 80 Ibf/in? and is compressed to 160°F, 200 Ib;/in?. The refrigerant exiting the compressor enters a condenser where energy transfer to air as a separate stream occurs, and the refrigerant exits as a liquid at 200 lb/in?, 90°F. Air enters the condenser at 75°F, 14.7 Ibf/in?with a volumetric flow rate of 1250 ft/min and exits at 110°F. Neglect stray heat transfer and kinetic and potential energy effects, and assume ideal gas behavior for the air. Condenser Air at T P4=14.7 bfin? (AV), P2 = p3 = 200 1b/in² T: = 60°F T,= 160°F P2=200 lbfin? T3-90'F A=200 bf/in 2 T3 = 90°F pi = 80 1brin? Compressor = 40°F 1+ R22 at I=40°F Pi - 80 Ibflin ? Determine the mass flow rate of refrigerant, in Ib/min, and the compressor power, in horsepower.
Transcribed Image Text:As shown in the figure, Refrigerant 22 enters the compressor of an air conditioning unit operating at steady state at 40°F, 80 Ibf/in? and is compressed to 160°F, 200 Ib;/in?. The refrigerant exiting the compressor enters a condenser where energy transfer to air as a separate stream occurs, and the refrigerant exits as a liquid at 200 lb/in?, 90°F. Air enters the condenser at 75°F, 14.7 Ibf/in?with a volumetric flow rate of 1250 ft/min and exits at 110°F. Neglect stray heat transfer and kinetic and potential energy effects, and assume ideal gas behavior for the air. Condenser Air at T P4=14.7 bfin? (AV), P2 = p3 = 200 1b/in² T: = 60°F T,= 160°F P2=200 lbfin? T3-90'F A=200 bf/in 2 T3 = 90°F pi = 80 1brin? Compressor = 40°F 1+ R22 at I=40°F Pi - 80 Ibflin ? Determine the mass flow rate of refrigerant, in Ib/min, and the compressor power, in horsepower.
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