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Answer to Question #291873 in Mechanical Engineering for Sam

Question #291873

Dry air at a temperature of 270 C and pressure of 20 bars enters a nozzle and leaves at a pressure of 4 bar. Find the mass of air discharged, if the area of the nozzle is 200mm2.

1
Expert's answer
2022-02-01T13:07:01-0500

T1=270°C

P1=20bar

P2=4bar

A=200mm2

At P1 and T1

h=345kg/kJ

s=1.274kJ/kgK

m=hs

=345*1.274

=439.53kg/s


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