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REGENERATIVE CYCLE WITH ONE CLOSED HEATER: Fill up the blanks with your answers below. 1. A steam power plant operates on a reheat regenerative Rankine cycle with a closed feedwater heater. Steam enters the turbine at 8 Mpaa and 500 deg C at a rate of 20 kg/sec and is condensed in the condenser at a pressure of 20 kPaa. Steam is reheated at 3 MPaa, 500 deg C. Some steam is extracted from the turbine at 1 Mpaa and is completely condensed in the closed feedwater heater and pumped to 8 Mpaa before it mixes with the feedwater heater at the same pressure in a mixing chamber. The Terminal Difference for the CFWH, (i.e., the difference between the temperatures of the fluids leaving the heater) is 5 deg C. Assuming an isentropic efficiency of 88 percent for both the turbines and the pumps, determine: SUMMARY OF ANSWERS: 1. Equipment Layout and TS diagram for the (in separate sheet) cycle 2. Ideal extracted steam for feedwater heating in kg/kg 3. Actual extracted steam for feedwater heating in kg/kg 4. Actual energy chargeable (KW) 5. Ideal engine efficiency (%) 6. Turbine work, actual (KW 7. Actual Cycle efficiency using Pump and Turbine works (%) 8. Brake Work in KW if friction loss at the turbine is 4 % of actual turbine work. 9. The torque measured at the shaft in KN-m if the generator is running at 3600 rpm for a brake work in item 8.

REGENERATIVE CYCLE WITH ONE CLOSED HEATER: Fill up the blanks with your answers below. 1. A steam power plant operates on a reheat regenerative Rankine cycle with a closed feedwater heater. Steam enters the turbine at 8 Mpaa and 500 deg C at a rate of 20 kg/sec and is condensed in the condenser at a pressure of 20 kPaa. Steam is reheated at 3 MPaa, 500 deg C. Some steam is extracted from the turbine at 1 Mpaa and is completely condensed in the closed feedwater heater and pumped to 8 Mpaa before it mixes with the feedwater heater at the same pressure in a mixing chamber. The Terminal Difference for the CFWH, (i.e., the difference between the temperatures of the fluids leaving the heater) is 5 deg C. Assuming an isentropic efficiency of 88 percent for both the turbines and the pumps, determine: SUMMARY OF ANSWERS: 1. Equipment Layout and TS diagram for the (in separate sheet) cycle 2. Ideal extracted steam for feedwater heating in kg/kg 3. Actual extracted steam for feedwater heating in kg/kg 4. Actual energy chargeable (KW) 5. Ideal engine efficiency (%) 6. Turbine work, actual (KW 7. Actual Cycle efficiency using Pump and Turbine works (%) 8. Brake Work in KW if friction loss at the turbine is 4 % of actual turbine work. 9. The torque measured at the shaft in KN-m if the generator is running at 3600 rpm for a brake work in item 8.

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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Note: make sure you fill up the "Summary of Answers" Table below or make a written summary of answers. Attach your solution to your summary of answers. REGENERATIVE CYCLE WITH ONE CLOSED HEATER: Fill up the blanks with your answers below. 1. A steam power plant operates on a reheat regenerative Rankine cycle with a closed feedwater heater. Steam enters the turbine at 8 Mpaa and 500 deg C at a rate of 20 kg/sec and is condensed in the condenser at a pressure of 20 kPaa. Steam is reheated at 3 MPaa, 500 deg C. Some steam is extracted from the turbine at 1 Mpaa and is completely condensed in the closed feedwater heater and pumped to 8 Mpaa before it mixes with the feedwater heater at the same pressure in a mixing chamber. The Terminal Difference for the CFWH, (i.e., the difference between the temperatures of the fluids leaving the heater) is 5 deg C. Assuming an isentropic efficiency of 88 percent for both the turbines and the pumps, determine: SUMMARY OF ANSWERS: 1. Equipment Layout and TS diagram for the cycle 2. Ideal extracted steam for feedwater heating in kg/kg 3. Actual extracted steam for feedwater heating in kg/kg 4. Actual energy chargeable (KW) 5. Ideal engine efficiency (%) 6. Turbine work, actual (KW 7. Actual Cycle efficiency using Pump and Turbine works (%) 8. Brake Work in KW if friction loss at the turbine is 4 % of actual turbine work. 9. The torque measured at the shaft in KN-m if the generator is running at 3600 rpm for a brake work in item 8. (in separate sheet)
Transcribed Image Text:Note: make sure you fill up the "Summary of Answers" Table below or make a written summary of answers. Attach your solution to your summary of answers. REGENERATIVE CYCLE WITH ONE CLOSED HEATER: Fill up the blanks with your answers below. 1. A steam power plant operates on a reheat regenerative Rankine cycle with a closed feedwater heater. Steam enters the turbine at 8 Mpaa and 500 deg C at a rate of 20 kg/sec and is condensed in the condenser at a pressure of 20 kPaa. Steam is reheated at 3 MPaa, 500 deg C. Some steam is extracted from the turbine at 1 Mpaa and is completely condensed in the closed feedwater heater and pumped to 8 Mpaa before it mixes with the feedwater heater at the same pressure in a mixing chamber. The Terminal Difference for the CFWH, (i.e., the difference between the temperatures of the fluids leaving the heater) is 5 deg C. Assuming an isentropic efficiency of 88 percent for both the turbines and the pumps, determine: SUMMARY OF ANSWERS: 1. Equipment Layout and TS diagram for the cycle 2. Ideal extracted steam for feedwater heating in kg/kg 3. Actual extracted steam for feedwater heating in kg/kg 4. Actual energy chargeable (KW) 5. Ideal engine efficiency (%) 6. Turbine work, actual (KW 7. Actual Cycle efficiency using Pump and Turbine works (%) 8. Brake Work in KW if friction loss at the turbine is 4 % of actual turbine work. 9. The torque measured at the shaft in KN-m if the generator is running at 3600 rpm for a brake work in item 8. (in separate sheet)
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