Answered: 650°C 9 MPa Boiler Turbine W- 3 50°C 4…

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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Question

A simple steam power plant operates on 8 kg/s of steam as shown below.

Neglecting losses in the various components.
A. What is the turbine power output in kW?
B. What is the pump power requirement in kW?
C. If the pump is 70% efficient what is the power output in kW.
D. What is the heat transfer rate necessary in the boiler?
E. What is the thermal efficiency of the cycle?

Use the equation below.
η = (turbine power output – pump power requirement) / (boiler heat transfer rate).

650°C
9 MPa
Boiler
Turbine
3
50°C
4
0 = 0.92
2
9 MPa
20 kPa
20°C
20 kPa
Pump
Condenser
1
50°C

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