Work Problem 8.33, retaining all quantities except the preheater intercept pressure which at Section 6 is a)

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Work Problem 8.33, retaining all quantities except the preheater intercept pressure which at Section 6 is
a) 200 psia
b) 160 psia.
The regenerative Rankine cycle shown in Fig. 8.35 operates with a turbine efficiency of 90% and a mass flow rate of 50 lbm/s. Steam leaves the steam generator at 1200 psia and 1000 8 F. Steam is removed from the turbine at 180 psia and sent to the open feedwater heater. The remaining steam leaves the turbine at 4 psia. Sketch this cycle on a T-s diagram and calculate:
i) The heat flow rate into the steam generator
ii) The mass flow rate diverted to the feedwater heater
iii) The power output of the turbine
iv) The net power input to the pumps
v) The quality of the steam exiting the turbine
vi) The thermodynamic efficiency of the cycle
Figure 8.35
Work Problem 8.33, retaining all quantities except the preheater intercept
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Thermodynamics for Engineers

ISBN: ?978-1133112860

1st edition

Authors: Kenneth A. Kroos, Merle C. Potter

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