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7. Consider a regenerative vapor power cycle with two feedwater heaters, a closed one and an open one, and reheat. Steam enters the first turbine stage at 12 MPa, 480°C, and expands to 2 MPa. Some steam is extracted at 2 MPa and fed to the closed feedwater heater. The remainder is reheated at 2 MPa to 440°C and then expands through the second-stage turbine to 0.3 MPa, where an additional amount is extracted and fed into the open feedwater heater operating at 0.3 MPa. The steam expanding through the third-stage turbine exits at the condenser pressure of 6 kPa. Feedwater leaves the closed heater at 210°C, 12 MPa, and condensate exiting as saturated liquid at 2 MPa is trapped into the open feedwater heater. Saturated liquid at 0.3 MPa leaves the open feedwater heater. All the turbine stage and pumps have isentropic efficiencies of 80%. a Illustrate the schematic and TS diagram of the cycle; and b. Determine for the cycle b.1. the heat transfer to the working fluid passing through the steam generator, in kJ per kg of stea entering the first stage turbine; b.2. the thermal efficiency, and b.3. the heat transfer from the working fluid passing through the condenser to the cooling water, in per kg of steam entering the first-stage turbine.

7. Consider a regenerative vapor power cycle with two feedwater heaters, a closed one and an open one, and reheat. Steam enters the first turbine stage at 12 MPa, 480°C, and expands to 2 MPa. Some steam is extracted at 2 MPa and fed to the closed feedwater heater. The remainder is reheated at 2 MPa to 440°C and then expands through the second-stage turbine to 0.3 MPa, where an additional amount is extracted and fed into the open feedwater heater operating at 0.3 MPa. The steam expanding through the third-stage turbine exits at the condenser pressure of 6 kPa. Feedwater leaves the closed heater at 210°C, 12 MPa, and condensate exiting as saturated liquid at 2 MPa is trapped into the open feedwater heater. Saturated liquid at 0.3 MPa leaves the open feedwater heater. All the turbine stage and pumps have isentropic efficiencies of 80%. a Illustrate the schematic and TS diagram of the cycle; and b. Determine for the cycle b.1. the heat transfer to the working fluid passing through the steam generator, in kJ per kg of stea entering the first stage turbine; b.2. the thermal efficiency, and b.3. the heat transfer from the working fluid passing through the condenser to the cooling water, in per kg of steam entering the first-stage turbine.

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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Hello, this is quite hard for me. Pls solve this and give a schematic and ts diagram. Thank you

7. Consider a regenerative vapor power cycle with two feedwater heaters, a closed one and an open one, and reheat. Steam enters the first turbine stage at 12 MPa, 480°C, and expands to 2 MPa. Some steam is extracted at 2 MPa and fed to the closed feedwater heater. The remainder is reheated at 2 MPa to 440°C and then expands through the second-stage turbine to 0.3 MPa, where an additional amount is extracted and fed into the open feedwater heater operating at 0.3 MPa. The steam expanding through the third-stage turbine exits at the condenser pressure of 6 kPa. Feedwater leaves the closed heater at 210°C, 12 MPa, and condensate exiting as saturated liquid at 2 MPa is trapped into the open feedwater heater. Saturated liquid at 0.3 MPa leaves the open feedwater heater. All the turbine stage and pumps have isentropic efficiencies of 80%. a Illustrate the schematic and TS diagram of the cycle; and Determine for the cycle b.1. the heat transfer to the working fluid passing through the steam generator, in kJ per kg of stear entering the first stage turbine; b.2. the thermal efficiency, and b.3. the heat transfer from the working fluid passing through the condenser to the cooling water, in per kg of steam entering the first-stage turbine.
Transcribed Image Text:7. Consider a regenerative vapor power cycle with two feedwater heaters, a closed one and an open one, and reheat. Steam enters the first turbine stage at 12 MPa, 480°C, and expands to 2 MPa. Some steam is extracted at 2 MPa and fed to the closed feedwater heater. The remainder is reheated at 2 MPa to 440°C and then expands through the second-stage turbine to 0.3 MPa, where an additional amount is extracted and fed into the open feedwater heater operating at 0.3 MPa. The steam expanding through the third-stage turbine exits at the condenser pressure of 6 kPa. Feedwater leaves the closed heater at 210°C, 12 MPa, and condensate exiting as saturated liquid at 2 MPa is trapped into the open feedwater heater. Saturated liquid at 0.3 MPa leaves the open feedwater heater. All the turbine stage and pumps have isentropic efficiencies of 80%. a Illustrate the schematic and TS diagram of the cycle; and Determine for the cycle b.1. the heat transfer to the working fluid passing through the steam generator, in kJ per kg of stear entering the first stage turbine; b.2. the thermal efficiency, and b.3. the heat transfer from the working fluid passing through the condenser to the cooling water, in per kg of steam entering the first-stage turbine.
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