Win High-pressure liquid water 2 Pump 1 Jan Boiler Condenser Low-pressure liquid water Qout FIGURE 7-1 Example of a power cycle. High-pressure steam Turbine steam OMP Wout Low-pressure superheated vapor or high-quality two-phase mixture A simple steam power cycle consists of a boiler, turbine, condenser, and pump as shown in the sketch above. All the heat removal in the cycle is done by the condenser which transfers the heat to pipes carrying cooling water. The cooling water has a mass flow rate of 7 kg/sec, and a specific heat of 4,180 J/kg-°C. The cooling water is supplied at a temperature of 10 °C and exits at 20 °C. Heat is supplied to the cycle through a steam boiler at a rate, Qin = 420 kW. Find the following: a. The rate at which heat is rejected from the cycle to the cooling water, Qout. b. The net power produced in kilowatts, Wnet. c. The cycle efficiency, cycle.

Win High-pressure liquid water 2 Pump 1 Jan Boiler Condenser Low-pressure liquid water Qout FIGURE 7-1 Example of a power cycle. High-pressure steam Turbine steam OMP Wout Low-pressure superheated vapor or high-quality two-phase mixture A simple steam power cycle consists of a boiler, turbine, condenser, and pump as shown in the sketch above. All the heat removal in the cycle is done by the condenser which transfers the heat to pipes carrying cooling water. The cooling water has a mass flow rate of 7 kg/sec, and a specific heat of 4,180 J/kg-°C. The cooling water is supplied at a temperature of 10 °C and exits at 20 °C. Heat is supplied to the cycle through a steam boiler at a rate, Qin = 420 kW. Find the following: a. The rate at which heat is rejected from the cycle to the cooling water, Qout. b. The net power produced in kilowatts, Wnet. c. The cycle efficiency, cycle.

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

Problem 2:
Win
High-pressure
liquid water
(Pump
Boiler
Condenser
à out
Low-pressure
liquid water
FIGURE 7-1 Example of a power cycle.
High-pressure steam
3
Turbine
Wout
Low-pressure superheated vapor
or high-quality two-phase mixture
A simple steam power cycle consists of a boiler, turbine, condenser, and pump as shown in the
sketch above. All the heat removal in the cycle is done by the condenser which transfers the heat
to pipes carrying cooling water. The cooling water has a mass flow rate of 7 kg/sec, and a specific
heat of 4,180 J/kg-°C. The cooling water is supplied at a temperature of 10 °C and exits at 20 °C.
Heat is supplied to the cycle through a steam boiler at a rate, Ċin = 420 kW. Find the following:
a. The rate at which heat is rejected from the cycle to the cooling water, Qout-
b. The net power produced in kilowatts, Wnet-
c. The cycle efficiency, cycle.

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Step 3: Calculating the heat rejecting from the cycle i.e. from the condenser

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Step 4: Calculating the net power produced by the cycle

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Step 5: Calculating the thermal efficiency of the cycle

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