Question

1) Air entering a steady-state compressor at 101 kPa and 298 K reaches 808 kPa adiabatically. is compressed by a process. The efficiency of the process is 87%. For this process, the work lost and the work required Calculate the minimum work. The ambient temperature is 293 K. Assume that the air is ideal. (δ= 0.4, <Cp ig>H= 29.97 kJ/kmolK, <Cp ig>S= 29.88 kJ/kmolK) 2) In an ideal water vapor Carnot cycle with a thermal efficiency of 30% and a boiler temperature of 613 K Calculate the qualities and net work (kJ/kg) at the turbine outlet and pump inlet. 3) Carnot water vapor cycle operated between 593 K and 303 K temperature limits, a) For the case where all processes are reversible, b) For the case where the turbine efficiency is 90% and the pump efficiency is 70%, Qabs is Qattened, Calculate η-cycle and Wtür/Wpom ratio

          1) Air entering a steady-state compressor at 101 kPa and 298 K reaches 808 kPa adiabatically. is compressed by a process. The efficiency of the process is 87%. For this process, the work lost and the work required Calculate the minimum work. The ambient temperature is 293 K. Assume that the air is ideal.
(δ= 0.4, <Cp
ig>H= 29.97 kJ/kmolK, <Cp
ig>S= 29.88 kJ/kmolK)

2) In an ideal water vapor Carnot cycle with a thermal efficiency of 30% and a boiler temperature of 613 K Calculate the qualities and net work (kJ/kg) at the turbine outlet and pump inlet.

3) Carnot water vapor cycle operated between 593 K and 303 K temperature limits,
a) For the case where all processes are reversible,
b) For the case where the turbine efficiency is 90% and the pump efficiency is 70%, Qabs is Qattened, Calculate η-cycle and Wtür/Wpom ratio

Added by Emirhan Y.

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