An insulated, steady state piping system consists of flowing air that is combined from two pipes into a single outgoing pipe. Determine the temperature of the air at the exit, the diameter at the exit, and the rate of entropy production within the system.  Assume: that air is an ideal gas (cp = 0.24 Btu/lb oR), that kinetic and potential energy effects can be ignored, and the system is atmospheric pressure throughout.

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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An insulated, steady state piping system consists of flowing air that is combined from two
pipes into a single outgoing pipe. Determine the temperature of the air at the exit, the
diameter at the exit, and the rate of entropy production within the system.
 Assume: that air is an ideal gas (cp = 0.24 Btu/lb oR), that kinetic and potential energy
effects can be ignored, and the system is atmospheric pressure throughout.

1
2
D₁ = 4 ft
V₁ = 400 ft/min
T₁ = 80 °F
V₂ = 2000 ft³/min
V₂ = 600 ft/min
T₂ = 40 °F
3
V3= 400 ft/min
D3 = ?
T3 = ?
Transcribed Image Text:1 2 D₁ = 4 ft V₁ = 400 ft/min T₁ = 80 °F V₂ = 2000 ft³/min V₂ = 600 ft/min T₂ = 40 °F 3 V3= 400 ft/min D3 = ? T3 = ?
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