(5)A steam power plant operates on the cycle shown in the figure. If the isentropic 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. Tin 15.9 MPa 15.2 MPa 625°C 35°C Boiler 15 MPa 16 MPa 600°C "pump, in Wturb,out Pump np = 0.85 Turbine NT= 0.87 9 kPa 10 kPa 38°C Condenser

(5)A steam power plant operates on the cycle shown in the figure. If the isentropic 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. Tin 15.9 MPa 15.2 MPa 625°C 35°C Boiler 15 MPa 16 MPa 600°C "pump, in Wturb,out Pump np = 0.85 Turbine NT= 0.87 9 kPa 10 kPa 38°C Condenser

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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(5)A steam power plant operates on the cycle shown in the figure. If the isentropic 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.
Tin
15.9 MPa
15.2 MPa
35°C
625°C
Boiler
15 MPa
16 MPa
600°C
pump, in
Wurb.out
Pump
mp = 0.85
Turbine
NT = 0.87
9 kPa
10 kPa
38°C
Condenser
Jout

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Type in your answer/s rounded off to 2 decimal places except for whole numbers. (ex: 10.67, 28, 732.40) If your answer is 120.00 kN, just write 120 kN Do not round off values during solving. Use the store function of your calculator or its fraction if applicable. Include the units after your answer. Leave a space between the value and the unit. (ex: 6323.17 m, 73.10 rad/s^2, 100 kN) For stresses, type (C) for compression and (T) for tension one space after the unit. (ex: 18.19 MPa (C), 6.88 psi (T))