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Yout For the proper operation of the cycle, water should be pumped to the boiler using pump required work input (Win) to the cycle. Heat energy should be supplied to the boiler ( generate steam and then high pressure steam is fed to the turbine. By extracting the from high pressure steam, turbine is producing work output (Wur). Because of this, the pressure is reduced and low pressure steam is flowing into the condenser. Condenser re heat energy from steam further (Qout) and steam is converted into liquid water. The water can be pumped into the boiler again and the cycle continues. Performance of a R cycle can be evaluated by using thermal efficiency (nen)which is determined from; We Nth = net out

Yout For the proper operation of the cycle, water should be pumped to the boiler using pump required work input (Win) to the cycle. Heat energy should be supplied to the boiler ( generate steam and then high pressure steam is fed to the turbine. By extracting the from high pressure steam, turbine is producing work output (Wur). Because of this, the pressure is reduced and low pressure steam is flowing into the condenser. Condenser re heat energy from steam further (Qout) and steam is converted into liquid water. The water can be pumped into the boiler again and the cycle continues. Performance of a R cycle can be evaluated by using thermal efficiency (nen)which is determined from; We Nth = net out

Elements Of Electromagnetics
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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Power generation using steam is one of the most common method which can be found around the world. In these type of power plants, steam goes through a basic thermodynamic cycle called Rankine cycle which is shown in the following figure. Steam flow Boiler Qin Pump Wout Win Condenser For the proper operation of the cycle, water should be pumped to the boiler using pump which required work input (Wn) to the cycle. Heat energy should be supplied to the boiler (Qin) to generate steam and then high pressure steam is fed to the turbine. By extracting the energy from high pressure steam, turbine is producing work output (Wout)- Because of this, the steam pressure is reduced and low pressure steam is flowing into the condenser. Condenser removes heat energy from steam further (Qout) and steam is converted into liquid water. The liquid water can be pumped into the boiler again and the cycle continues. Performance of a Ranking cycle can be evaluated by using thermal efficiency (neh)which is determined from; Whet out neh = Qan Consider a steam power plant operated using a Rankine cycle is producing 25 MW work output from its turbine. For this, 93 MW of heat energy should be supplied to the boiler. When the plant is running, 68 MW of heat energy is removed from the system by the condenser. Determine the thermal efficiency of the plant. If the rate of heat energy removal by the condenser is increased to 72 MW, explain how it affect to the performance of the plant.
Transcribed Image Text:Power generation using steam is one of the most common method which can be found around the world. In these type of power plants, steam goes through a basic thermodynamic cycle called Rankine cycle which is shown in the following figure. Steam flow Boiler Qin Pump Wout Win Condenser For the proper operation of the cycle, water should be pumped to the boiler using pump which required work input (Wn) to the cycle. Heat energy should be supplied to the boiler (Qin) to generate steam and then high pressure steam is fed to the turbine. By extracting the energy from high pressure steam, turbine is producing work output (Wout)- Because of this, the steam pressure is reduced and low pressure steam is flowing into the condenser. Condenser removes heat energy from steam further (Qout) and steam is converted into liquid water. The liquid water can be pumped into the boiler again and the cycle continues. Performance of a Ranking cycle can be evaluated by using thermal efficiency (neh)which is determined from; Whet out neh = Qan Consider a steam power plant operated using a Rankine cycle is producing 25 MW work output from its turbine. For this, 93 MW of heat energy should be supplied to the boiler. When the plant is running, 68 MW of heat energy is removed from the system by the condenser. Determine the thermal efficiency of the plant. If the rate of heat energy removal by the condenser is increased to 72 MW, explain how it affect to the performance of the plant.
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