The thermodynamic systems shown below operate at steady state. For the specified control volume, write the energy balance and mass balance, assuming negligible kinetic and potential energy effects. The equations must reflect the state points shown in the accompanying diagram.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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The thermodynamic systems shown below operate at steady state. For the specified control
volume, write the energy balance and mass balance, assuming negligible kinetic and
potential energy effects. The equations must reflect the state points shown in the
accompanying diagram.

Saturated liquid R-134a
T3 = 115°F
m₂ = 1.5 lb/s
Throttling
valve
P₁ = 60 lbf/in.²
Air
T₁=535°R
= 0.240 Btu/lb-ᵒR
Fan
wwww
sitz
7₂-328°K
-
Wey=-0.2 hp
Saturated vapor
Ps= P4
-Heat exchanger
3. The whole heat exchanger
4. The refrigerant line (R-134a)
from state 3 to state 5. Note
that no mixing occurs in the
heat exchanger
5. Fan and whole heat exchanger
(enclosed in red box)
Transcribed Image Text:Saturated liquid R-134a T3 = 115°F m₂ = 1.5 lb/s Throttling valve P₁ = 60 lbf/in.² Air T₁=535°R = 0.240 Btu/lb-ᵒR Fan wwww sitz 7₂-328°K - Wey=-0.2 hp Saturated vapor Ps= P4 -Heat exchanger 3. The whole heat exchanger 4. The refrigerant line (R-134a) from state 3 to state 5. Note that no mixing occurs in the heat exchanger 5. Fan and whole heat exchanger (enclosed in red box)
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