The figure belows shows three components of an air-conditioning system, where T3 = 95°F and m3 = 1.5 lb/s. Refrigerant 134a flows through a throttling valve and a heat exchanger while air flows through a fan and the same heat exchanger. Data for steady-state operation are given on the figure. There is no significant heat transfer between any of the components and the surroundings. Kinetic and potential energy effects are negligible. Saturated liquid R-134a T3, m3 Throttling valve lb/s P4= 60 lbf/in.² Air T₁ = 535°R Cp=0.240 Btu/lb-"R Fan wwwwww T₂=528°R 2 5 Wey=-0.2 hp Saturated vapor Ps= P4 -Heat exchanger Modeling air as an ideal gas with constant cp = 0.240 Btu/lb °R, determine the mass flow rate of the air, in lb/s. m₁ = i

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The figure belows shows three components of an air-conditioning system, where T3 = 95°F and m3 = 1.5 lb/s. Refrigerant 134a
flows through a throttling valve and a heat exchanger while air flows through a fan and the same heat exchanger. Data for steady-state
operation are given on the figure. There is no significant heat transfer between any of the components and the surroundings. Kinetic
and potential energy effects are negligible.
Saturated liquid R-134a
T3, m3
m₁ = i
Throttling
valve
lb/s
4
P4= 60 lbf/in.²
Air
T₁ = 535°R
Cp=0.240 Btu/lb-ºR
Fan
wwwwww
T₂=528°R +2
5
Wey = -0.2 hp
Saturated vapor
Ps= P4
Modeling air as an ideal gas with constant cp = 0.240 Btu/lb. °R, determine the mass flow rate of the air, in lb/s.
-Heat exchanger
Transcribed Image Text:The figure belows shows three components of an air-conditioning system, where T3 = 95°F and m3 = 1.5 lb/s. Refrigerant 134a flows through a throttling valve and a heat exchanger while air flows through a fan and the same heat exchanger. Data for steady-state operation are given on the figure. There is no significant heat transfer between any of the components and the surroundings. Kinetic and potential energy effects are negligible. Saturated liquid R-134a T3, m3 m₁ = i Throttling valve lb/s 4 P4= 60 lbf/in.² Air T₁ = 535°R Cp=0.240 Btu/lb-ºR Fan wwwwww T₂=528°R +2 5 Wey = -0.2 hp Saturated vapor Ps= P4 Modeling air as an ideal gas with constant cp = 0.240 Btu/lb. °R, determine the mass flow rate of the air, in lb/s. -Heat exchanger
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