Air enters a one-inlet, one-exit control volume at 7 bar, 450 K, and 30 m/s through a flow area of 25 cm?. At the exit, the pressure is 4 bar, the temperature is 400 K, and the velocity is 300 m/s. The air behaves as an ideal gas. For steady-state operation, determine: (a) the mass flow rate, in kg/s. (b) the exit flow area, in m². 1 Air

Elements Of Electromagnetics
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Problem 1 (6 marks)
Air enters a one-inlet, one-exit control volume at 7 bar, 450 K, and 30 m/s through a flow area of 25 cm?. At
the exit, the pressure is 4 bar, the temperature is 400 K, and the velocity is 300 m/s. The air behaves as an ideal
gas. For steady-state operation, determine:
(a) the mass flow rate, in kg/s.
(b) the exit flow area, in m?.
1
2
Air
Page 2 of 6
Transcribed Image Text:Problem 1 (6 marks) Air enters a one-inlet, one-exit control volume at 7 bar, 450 K, and 30 m/s through a flow area of 25 cm?. At the exit, the pressure is 4 bar, the temperature is 400 K, and the velocity is 300 m/s. The air behaves as an ideal gas. For steady-state operation, determine: (a) the mass flow rate, in kg/s. (b) the exit flow area, in m?. 1 2 Air Page 2 of 6
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