1
MEEN 315501
Fall 2010
Problem Set 07
Not Due for credit.
Please make sure to work all problems and have a good working
understanding of them.
1. Air enters an adiabatic nozzle steadily at 300 kPa, 200ºC, and 45 m/s and leaves at
100 kPa and 180 m/s. The inlet area of the nozzle is 110 cm
2
.
Determine
(a)
the mass flow rate through the nozzle
(b)
the exit temperature of the air
(c)
the exit area of the nozzle.
2. Steam enters a nozzle at 400 ºC and 800 kPa with a velocity of 10 m/s, and leaves at
300 ºC and 200 kPa while losing heat at a rate of 25 kW. For an inlet area of 800 cm
2
,
determine the velocity and the volume flow rate of the stream at the nozzle exit.
3. Nitrogen gas at 60 kPa and 7 ºC enters an adiabatic diffuser steadily with a velocity of
275 m/s and leaves at 85 kPa and 27 ºC.
Determine
(a)
the exit velocity of the nitrogen
(b)
the ratio of the inlet to exit area A
1
/A
2
.
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4. Will the temperature of air rise as it is compressed by an adiabatic compressor? Why?
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 Fall '07
 RAMUSSEN
 Fluid Dynamics, Energy, Heat Transfer, Mass flow rate, argon

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