As shown in the figure, Refrigerant 22 enters the compressor of an air conditioning unit operating at steady state at 40°F, 80 Ibf/in2 and is compressed to 160°F, 200 Ibf/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/in2, 90°F. Air enters the condenser at 80°F, 14.7 Ib/in? with a volumetric flow rate of 750 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 wwww Air at T P4=14.7lbfin? (AV), I; =110°F p2 = p3 = 200 Ib/in² www T: = 60°F| Tz= 160°F P2=200 ib£in² T3-90°F A=200 b€/n 2 T3 = 90°F T = 40°F pi = 80 lbrin? Compressor 1- R22 at I=40°F P- 80 Ibfin.? Determine the mass flow rate of refrigerant, in Ib/min, and the compressor power, in horsepower.

Elements Of Electromagnetics
7th Edition
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Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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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 Ibp/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 80°F, 14.7 Ibf/in² with a
volumetric flow rate of 750 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
wwww
www
Air at T P4=14.7lbfin?
(AV),
I;=110°F
hn 00 ק = P2
| Tz= 160°F
P2=200 lb£in_?
T;-90°F
P3 =200 bf/n ²
T2
= 60°F
= 90°F
pi = 80 brin?
Compressor
= 40°F
1- R22 at
Iz=40°F
P-80 Ibfin_?
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 lbf/in² and is compressed to 160°F, 200 Ibp/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 80°F, 14.7 Ibf/in² with a volumetric flow rate of 750 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 wwww www Air at T P4=14.7lbfin? (AV), I;=110°F hn 00 ק = P2 | Tz= 160°F P2=200 lb£in_? T;-90°F P3 =200 bf/n ² T2 = 60°F = 90°F pi = 80 brin? Compressor = 40°F 1- R22 at Iz=40°F P-80 Ibfin_? Determine the mass flow rate of refrigerant, in Ib/min, and the compressor power, in horsepower.
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