Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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Figure shows a simple vapor power plant operating at steady state with water as the working fluid. Data at key locations are given on the figure. The mass flow rate of the water circulating through the components is 109 kg/s. Stray heat transfer and kinetic and potential energy effects can be ignored. Determine:
(a) the mass flow rate of the cooling water, in kg/s.
(b) the thermal efficiency.
(c) the rates of entropy production, each in kW/K, for the turbine, condenser, and pump.
(d) Using the results of part (c), place the components in rank order, beginning with the component contributing most to inefficient operation of the overall system. verl
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i bali
8P = 100 bar
T = 520°C
Power out BBd
Turbine
1
P2 = 0.08 bar
X2 = 90% +2
%3D
MI
m do Cooling
Steam
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5nity-bia water in at 20°C
tlwo eiligi as
Condenser
P4 = 100 bar
4+
T4= 43°C
Cooling
water out at 35°C
DePump
Viioolov bas.
3 P3= 0.08 bar
Saturated liquid
tol
Power
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