Carbon dioxide gas is compressed at steady state from a pressure
of 16 lbf/in2 and a temperature of
32oF to a pressure of 50 lbf/in2
and a temperature of 110oF. The gas enters the
compressor with a velocity of 30 ft/s and exits with a velocity of
80 ft/s. The mass flow rate is 3000 lb/hr. The magnitude of the
heat transfer rate from the compressor to its surroundings is 5% of
the compressor power input. Use the ideal gas model with
cp = 0.21 Btu/lb·oR and neglect
potential energy effects.
Determine the flow area at the inlet, in ft2, and the
compressor power, in horsepower
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