Which of the following statements about a real Rankine cycle is true? Top of Form (A)...

Which of the following statements about a real Rankine cycle is true?

Top of Form

(A)

The entropy of the working fluid increases across every component.

(B)

The temperature of the working fluid increases across the pump.

(C)

The pressure of the working fluid increases across the boiler.

(D)

The work performed by the pump is equal to the product of the power into the pump and the pump efficiency.

Solutions

Expert Solution

all are true.

Explanation:

A. As the processes are real and not ideal, entropy generates at every component , that is in every process due to the efficiency of the components, as the efficiency is always less than 100% for real processes.

B. In pump, as the process is considered as irreversible adiabatic, the temperature of the working fluid increases, even if the process is not adiabatic, the temperature will increase.

C.In boiler, as heat is supplied to the working fluid, the phase of the fluid changes to vapour and the temperature, pressure and volume increases simultaneously.

D. the efficiency is given as

samet mamat answered 1 year ago

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