The centrifugal air compressor of a gas turbine receives air
from the ambient atmosphere where the pressure is 1 bar and
the temperature is 300K. At the discharge of the compressor,
the pressure is 4 bar and the temperature is 480K and the
velocity is 100 m/s. The mass flow rate of air is 15kg/s. (a)
Determine the power required to drive the compressor and
(b) Explain why the given air exit temperature is more or less
than the reversible adiabatic compression temperature.
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