Nitrogen (n2) enters an insulated compressor operating at
steady state at 1 bar, 378c with a mass flow rate of 1000 kg/h
and exits at 10 bar. kinetic and potential energy effects are
negligible. the nitrogen can be modeled as an ideal gas with
k 5 1.391.
(a) determine the minimum theoretical power input
required, in kw, and the corresponding exit temperature,
in 8c.
(b) if the exit temperature is 3978c, determine the power
input, in kw, and the isentropic compressor efficiency.