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In: Mechanical Engineering

Ideal Reheat Steam Cycle (10) Consider a steam power plant operating on the ideal reheat Rankine...

Ideal Reheat Steam Cycle (10)

Consider a steam power plant operating on the ideal reheat Rankine cycle. Steam enters the high-pressure turbine at PH MPa and TH °C and is condensed in the condenser at a pressure of PL kPa. Assume the steam is reheated to the inlet temperature of the high-pressure turbine, and that pump work is NOT negligible. If the moisture content of the steam at the exit of the low-pressure turbine is not to exceed w% percent, determine:

(a) the pressure at which the steam should be reheated and show how you got the quality,

(b) the total turbine work ,

(c) the net work ,

(d) the total heat input , and

(e) the thermal efficiency of the cycle .

PH = 20 MPa, TH = 700 °C, PL = 10 kPa and w% = 12.9%.

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