6.110 Figure P6.110 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 net power developed, in MW. b. the thermal efficiency. c. the isentropic turbine efficiency. d. the isentropic pump efficiency. e. the mass flow rate of the cooling water, in kg/s. f. the rates of entropy production, each in kW/K, for the turbine, condenser, and pump.

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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6.110 Figure P6.110 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 net power developed, in MW.
b. the thermal efficiency.
c. the isentropic turbine efficiency.
t2
d. the isentropic pump efficiency.
e. the mass flow rate of the cooling water, in kg/s.
f. the rates of entropy production, each in kW/K, for the turbine,
condenser, and pump.
P = 100 bar
T = 520°C
%3D
Power out
Turbine
P2 = 0.08 bar
2 = 90%
%3D
Steam
Cooling
water in at 20°C
generator
Condenser
Pa= 100 bar
T= 43°C
Cooling
water out at 35°C
4.
Pump
3 P3 0.08 bar
Saturated liquid
Power
in
FIGURE P6.110
2.
www
Transcribed Image Text:6.110 Figure P6.110 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 net power developed, in MW. b. the thermal efficiency. c. the isentropic turbine efficiency. t2 d. the isentropic pump efficiency. e. the mass flow rate of the cooling water, in kg/s. f. the rates of entropy production, each in kW/K, for the turbine, condenser, and pump. P = 100 bar T = 520°C %3D Power out Turbine P2 = 0.08 bar 2 = 90% %3D Steam Cooling water in at 20°C generator Condenser Pa= 100 bar T= 43°C Cooling water out at 35°C 4. Pump 3 P3 0.08 bar Saturated liquid Power in FIGURE P6.110 2. www
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