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In a steam power cycle the steam supply is at 1.5bar and dry and sturated .the condenser pressure is 0.4bar.calculate the Carnot and Rankine efficiency of the cycle . neglect pump work

In a steam power cycle the steam supply is at 1.5bar and dry and sturated .the condenser pressure is 0.4bar.calculate the Carnot and Rankine efficiency of the cycle . neglect pump work

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
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In a steam power cycle the steam supply is at 1.5bar and dry and sturated .the condenser pressure is 0.4bar.calculate the Carnot and Rankine efficiency of the cycle . neglect pump work.
() By regenerative feed heating. (ii) By reheating of steam. (iii) By water extraction. (iv) By using binary-vapour. Questions 1. A steam power plant operate between a beier pressure of 42 bar and a condenser pressure of 0.035 bar. Calculate for these the cycle efficiency, the work ratio, and the specific steam consumption For a Carnot cycle using wet stear () (ii) For a Rankine cycle with dry saturated steam at entry to the turbine 2. Dry saturated steam at 17.5 bar enters the turbine of a steam power plant and expands to the condenser pressure of 0.75 bar. Determine the Carnot and Rankine cycle efficiencies. Also find the work ratio of the Rankine cycle. 3. Compute the thermal efficiency of an ideal Rar kine cycle for which steam leaves the boiler as saturated vapor at 6 MPa, 350°C and is condensed at 10 kPa. 4 In a steam power cycle, the steam supply is at 15 bar and dry and saturated. The condenser pressure is 0.4 bar. Calculate the Carnot and Rankine efficiencies of the cycle. Neglect pump work. 5. In a steam turbine steam at 20 bar, 360°C is expanded to 0.08 bar. It then enters a condenser, where it is condensed to saturated !iquid water. The pump feeds back the water into the boiler. Assume ideal processes, find perg of steam the net work and the cycle efficiency. 273+75-1 -34 1H 471.3-3
Transcribed Image Text:() By regenerative feed heating. (ii) By reheating of steam. (iii) By water extraction. (iv) By using binary-vapour. Questions 1. A steam power plant operate between a beier pressure of 42 bar and a condenser pressure of 0.035 bar. Calculate for these the cycle efficiency, the work ratio, and the specific steam consumption For a Carnot cycle using wet stear () (ii) For a Rankine cycle with dry saturated steam at entry to the turbine 2. Dry saturated steam at 17.5 bar enters the turbine of a steam power plant and expands to the condenser pressure of 0.75 bar. Determine the Carnot and Rankine cycle efficiencies. Also find the work ratio of the Rankine cycle. 3. Compute the thermal efficiency of an ideal Rar kine cycle for which steam leaves the boiler as saturated vapor at 6 MPa, 350°C and is condensed at 10 kPa. 4 In a steam power cycle, the steam supply is at 15 bar and dry and saturated. The condenser pressure is 0.4 bar. Calculate the Carnot and Rankine efficiencies of the cycle. Neglect pump work. 5. In a steam turbine steam at 20 bar, 360°C is expanded to 0.08 bar. It then enters a condenser, where it is condensed to saturated !iquid water. The pump feeds back the water into the boiler. Assume ideal processes, find perg of steam the net work and the cycle efficiency. 273+75-1 -34 1H 471.3-3
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