A steam power plant operates on the cycle shown in Fig. 10-5. If the isen- tropic efficiency of the turbine is 87 percent and the isentropic efficiency of the pump is 85 percent, determine (a) the thermal efficiency of the cycle and (b) the net power output of the plant for a mass flow rate of 15 kg/s.
A steam power plant operates on the cycle shown in Fig. 10-5. If the isen- tropic efficiency of the turbine is 87 percent and the isentropic efficiency of the pump is 85 percent, determine (a) the thermal efficiency of the cycle and (b) the net power output of the plant for a mass flow rate of 15 kg/s.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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How find h6

Transcribed Image Text:EXAMPLE 10-2 An Actual Steam Power Cycle
A steam power plant operates on the cycle shown in Fig. 10-5. If the isen-
tropic efficiency of the turbine is 87 percent and the isentropic efficiency of
the pump is 85 percent, determine (a) the thermal efficiency of the cycle
and (b) the net power output of the plant for a mass flow rate of 15 kg/s.
Wpump.in
15.9 MPa
35°C,
Boiler
(2) +16 MPa
Pump
1p = 0.85
9 kPa
38°C
15.2 MPa
625°C
(5)
15 MPa
600°C
Turbine
77= 0.87
Condenser
Wturb,out
10 kPa
T
68 6
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