(a) Percent of diverted flow after the first turbine, y (b) The thermal efficiency of the cycle, Ncyc (c) The entropy production rate at the closed feedwater heater per mass flow of steam entering the first turbine FWH, in [kJ/kg-K] (1-y)

(a) Percent of diverted flow after the first turbine, y (b) The thermal efficiency of the cycle, Ncyc (c) The entropy production rate at the closed feedwater heater per mass flow of steam entering the first turbine FWH, in [kJ/kg-K] (1-y)

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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Applied Fluid Mechanics

A fluid is a substance that is continuously deformed by the application of shear stress. The rate of deformation of a fluid depends on its viscosity. The fluid tries to flow when it interacts with some other system.

Question

* The system diagram and a number of the state properties are given below for a
regenerative Rankine cycle. The isentropic efficiency of both turbines is 85% and the isentropic efficiency
of the pump is 90%. Using the provided state data below, detemine the:
(a) Percent of diverted flow after the first turbine, y
(b) The thermal efficiency of the cycle, ncyc
(c) The entropy production rate at the closed feedwater heater per mass flow of steam entering the
first turbine "FWH, in [kJ/kg-K]
State T ("C) p (kPa) h (kJ/kg)
s (kJ/kg-K)
480
10000
3323
6.531
172.4
700
2781
6.749
2s
164.9
2686
6.531
|3[a -»
3
36.16
6.
2183
7.09
(y)
3s
36.16
2078
6.749
Steam
4
36.16
151.5
0.5208
Condenser
generator
5
36.69
162.6
0.5244
(1)
0.5208
1.98
5s
36.43
161.5
Pump
6.
164.9
702.3
7
164.9
697
1.992
|t
8
36.16
697
2.285
Closed
feedwater
heater
Trap
(y)
(v)

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