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Water is the working fluid in a regenerative Rankine cycle with one open feedwater heater. Steam enters the turbine at 1800 lb/in² and 1200°F and expands to 120 lb/in.2, where some of the steam is extracted and diverted to the open feedwater heater operating at 120 lb/in.² The remaining steam expands through the second-stage turbine to the condenser pressure of 2 lb/in.² Each turbine stage and both pumps have isentropic efficiencies of 85%. Flow through the condenser, open feedwater heater, and steam generator is at constant pressure. Saturated liquid exits the open feedwater heater at 120 lb/in.2 The mass flow rate of steam entering the first stage of the turbine is 2.42x106 lb/h. Step 1 Your Answer Correct Answer (Used) * Your answer is incorrect. Determine the net power output of the cycle, in Btu/hr. Wcycle = 1.201E+9 Hint Solution Btu/h Step 2 Determine the rate of heat transfer, in Btu/h, to the working fluid passing through the steam generator. Qin = i Btu/h Save for Later Attempts: 4 of 4 used Attempts: 0 of 4 used Submit Answer

Water is the working fluid in a regenerative Rankine cycle with one open feedwater heater. Steam enters the turbine at 1800 lb/in² and 1200°F and expands to 120 lb/in.2, where some of the steam is extracted and diverted to the open feedwater heater operating at 120 lb/in.² The remaining steam expands through the second-stage turbine to the condenser pressure of 2 lb/in.² Each turbine stage and both pumps have isentropic efficiencies of 85%. Flow through the condenser, open feedwater heater, and steam generator is at constant pressure. Saturated liquid exits the open feedwater heater at 120 lb/in.2 The mass flow rate of steam entering the first stage of the turbine is 2.42x106 lb/h. Step 1 Your Answer Correct Answer (Used) * Your answer is incorrect. Determine the net power output of the cycle, in Btu/hr. Wcycle = 1.201E+9 Hint Solution Btu/h Step 2 Determine the rate of heat transfer, in Btu/h, to the working fluid passing through the steam generator. Qin = i Btu/h Save for Later Attempts: 4 of 4 used Attempts: 0 of 4 used Submit Answer

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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Water is the working fluid in a regenerative Rankine cycle with one open feedwater heater. Steam enters the turbine at 1800 lb-/in² and 1200°F and expands to 120 lb-/in.², where some of the steam is extracted and diverted to the open feedwater heater operating at 120 lb-/in.² The remaining steam expands through the second-stage turbine to the condenser pressure of 2 lb/in.² Each turbine stage and both pumps have isentropic efficiencies of 85%. Flow through the condenser, open feedwater heater, and steam generator is at constant pressure. Saturated liquid exits the open feedwater heater at 120 lb-/in.² The mass flow rate of steam entering the first stage of the turbine is 2.42x10 lb/h. Step 1 Your Answer Correct Answer (Used) * Your answer is incorrect. Determine the net power output of the cycle, in Btu/hr. W cycle = Hint Solution Step 2 Qin 1.201E+9 Determine the rate of heat transfer, in Btu/h, to the working fluid passing through the steam generator. = i Btu/h Save for Later Btu/h Attempts: 4 of 4 used Attempts: 0 of 4 used Submit Answer
Transcribed Image Text:Water is the working fluid in a regenerative Rankine cycle with one open feedwater heater. Steam enters the turbine at 1800 lb-/in² and 1200°F and expands to 120 lb-/in.², where some of the steam is extracted and diverted to the open feedwater heater operating at 120 lb-/in.² The remaining steam expands through the second-stage turbine to the condenser pressure of 2 lb/in.² Each turbine stage and both pumps have isentropic efficiencies of 85%. Flow through the condenser, open feedwater heater, and steam generator is at constant pressure. Saturated liquid exits the open feedwater heater at 120 lb-/in.² The mass flow rate of steam entering the first stage of the turbine is 2.42x10 lb/h. Step 1 Your Answer Correct Answer (Used) * Your answer is incorrect. Determine the net power output of the cycle, in Btu/hr. W cycle = Hint Solution Step 2 Qin 1.201E+9 Determine the rate of heat transfer, in Btu/h, to the working fluid passing through the steam generator. = i Btu/h Save for Later Btu/h Attempts: 4 of 4 used Attempts: 0 of 4 used Submit Answer
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