Water is the working fluid in an ideal regenerative Rankine cycle with one open feedwater heater. Steam enters the turbine at 1400 Ibf/in.² and 1000°F and expands to 120 lbf/in.2, where some of the steam is extracted and diverted to the open feedwater heater operating at 120 lbf/in.2 The remaining steam expands through the second-stage turbine to the condenser pressure of 10 lbf/in.² Saturated liquid exits the open feedwater heater at 120 lbf/in.² The net power output of the cycle is 5.5 x 10³ Btu/h. Determine for the cycle: (a) the mass flow rate of steam entering the first stage of the turbine, in lb/h. (b) the rate of heat transfer, in Btu/h, to the working fluid passing through the steam generator. (c) the percent thermal efficiency.

Water is the working fluid in an ideal regenerative Rankine cycle with one open feedwater heater. Steam enters the turbine at 1400 Ibf/in.² and 1000°F and expands to 120 lbf/in.2, where some of the steam is extracted and diverted to the open feedwater heater operating at 120 lbf/in.2 The remaining steam expands through the second-stage turbine to the condenser pressure of 10 lbf/in.² Saturated liquid exits the open feedwater heater at 120 lbf/in.² The net power output of the cycle is 5.5 x 10³ Btu/h. Determine for the cycle: (a) the mass flow rate of steam entering the first stage of the turbine, in lb/h. (b) the rate of heat transfer, in Btu/h, to the working fluid passing through the steam generator. (c) the percent thermal efficiency.

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

See similar textbooks

Similar questions

Water is the working fluid in an ideal Rankine cycle. Steam enters the turbine at 1400 lbf/in2 and 1400°F. The condenser pressure is 2 lbf/in.2 The net power output of the cycle is 250 MW. Cooling water experiences a temperature increase from 60°F to 76°F, with negligible pressure drop, as it passes through the condenser.
Water is the working fluid in a regenerative Rankine cycle with one closed feedwater heater. Steam enters the turbine at 1400 lbf/in.² and 1000°F and expands to 120 lbf/in.2, where some of the steam is extracted and diverted to the closed feedwater heater. The remaining steam expands through the second-stage turbine to the condenser pressure of 2 lbf/in.2 Each turbine stage and the pump have isentropic efficiencies of 85%. Flow through the condenser, closed feedwater heater, and steam generator is at constant pressure. Condensate exiting the feedwater heater as saturated liquid at 120 lbf/in.2 undergoes a throttling process as it passes through a trap into the condenser. The feedwater leaves the heater at 1400 lbf/in.2 and a temperature equal to the saturation temperature at 120 lbf/in.² The net power output of the cycle is 1 x 10° Btu/h. Determine for the cycle: (a) the mass flow rate of steam entering the first stage of the turbine, in lb/h. (b) the rate of heat transfer, in Btu/h,…
Water is the working fluid in a regenerative Rankine cycle with one open feedwater heater. Steam enters the turbine at 1600 lbf/in² and 1100°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 lbf/in.2 The mass flow rate of steam entering the first stage of the turbine is 2.42x106 lb/h. Determine the net power output of the cycle, in Btu/hr. W cycle = i Btu/h
Water is the working fluid in an ideal regenerative Rankine cycle with one closed feedwater heater. Steam enters the turbine at 1400 Ib/in.² and 1200°F and expands to 120 lb/in.2, where some of the steam is extracted and diverted to the closed feedwater heater. The remaining steam expands through the second-stage turbine to the condenser pressure of 2 lbs/in.² Condensate exiting the feedwater heater as saturated liquid at 120 lb/in.2 undergoes a throttling process as it passes through a trap into the condenser. The feedwater leaves the heater at 1400 lb/in.2 and a temperature equal to the saturation temperature at 120 lbf/in.2 The net power output of the cycle is 283 MW. Step 1 Determine the mass flow rate of steam entering the first stage of the turbine, in lb/h. Your answer is correct. = 11 = 1730323.25 * Your answer is incorrect. Determine the thermal efficiency of the cycle. lb/h i 0.22
Water is the working fluid in an ideal regenerative Rankine cycle with one closed feedwater heater. Steam enters the turbine at 1400 lb-/in.² and 1200°F and expands to 120 lb-/in.2, where some of the steam is extracted and diverted to the closed feedwater heater. The remaining steam expands through the second-stage turbine to the condenser pressure of 2 lb-/in.² Condensate exiting the feedwater heater as saturated liquid at 120 lb-/in.² undergoes a throttling process as it passes through a trap into the condenser. The feedwater leaves the heater at 1400 lb/in.² and a temperature equal to the saturation temperature at 120 lbf/in.² The net power output of the cycle is 283 MW. Step 1 Determine the mass flow rate of steam entering the first stage of the turbine, in lb/h. m₁ = i lb/h
Water is the working fluid in an ideal regenerative Rankine cycle with one open feedwater heater. Steam enters the turbine at 1400 lbf/in.2 and 1000°F and expands to 120 lbf/in.2, where some of the steam is extracted and diverted to the open feedwater heater operating at 120 lbf/in.2 The remaining steam expands through the second-stage turbine to the condenser pressure of 6 lbf/in.2 Saturated liquid exits the open feedwater heater at 120 lbf/in.2 The net power output of the cycle is 1 x 108 Btu/h.Determine for the cycle:(a) the mass flow rate of steam entering the first stage of the turbine, in lb/h.(b) the rate of heat transfer, in Btu/h, to the working fluid passing through the steam generator.(c) the percent thermal efficiency.
Water is the working fluid in an ideal regenerative Rankine cycle with one closed feedwater heater. Steam enters the turbine at 1400 lbf/in.² and 1600°F and expands to 120 lbf/in.2, where some of the steam is extracted and diverted to the closed feedwater heater. The remaining steam expands through the second-stage turbine to the condenser pressure of 2 lb/in.2 Condensate exiting the feedwater heater as saturated liquid at 120 lbf/in.² undergoes a throttling process as it passes through a trap into the condenser. The feedwater leaves the heater at 1400 lb/in.² and a temperature equal to the saturation temperature at 120 lbf/in.2 The net power output of the cycle is 288 MW. Step 1 Determine the mass flow rate of steam entering the first stage of the turbine, in lb/h. m₁ i Save for Later lb/h Attempts: 0 of 4 used Submit Answer
Water is the working fluid in an ideal regenerative Rankine cycle with one open feedwater heater. Steam enters the turbine at 1400 Ibf/in.? and 1000°F and expands to 120 lbf/in.?, where some of the steam is extracted and diverted to the open feedwater heater operating at 120 lbf/in.? The remaining steam expands through the second-stage turbine to the condenser pressure of 10 lbf/in.2 Saturated liquid exits the open feedwater heater at 120 lbf/in.? The net power output of the cycle is 1 x 10° Btu/h. Determine for the cycle: (a) the mass flow rate of steam entering the first stage of the turbine, in Ib/h. (b) the rate of heat transfer, in Btu/h, to the working fluid passing through the steam generator. (c) the percent thermal efficiency.
Water is the working fluid in an ideal regenerative Rankine cycle with one closed feedwater heater. Steam enters the turbine at 1400 Ib/in.2 and 1600°F and expands to 120 lb/in.2, where some of the steam is extracted and diverted to the closed feedwater heater. The remaining steam expands through the second-stage turbine to the condenser pressure of 2 lb/in.2 Condensate exiting the feedwater heater as saturated liquid at 120 lb/in.² undergoes a throttling process as it passes through a trap into the condenser. The feedwater leaves the heater at 1400 lb/in.² and a temperature equal to the saturation temperature at 120 lbf/in.² The net power output of the cycle is 283 MW. Step 1 * Your answer is incorrect. Determine the mass flow rate of steam entering the first stage of the turbine, in lb/h. 1.346 lb/h Attempts: 1 of 4 used Step 2 The parts of this question must be completed in order. This part will be available when you complete the part above. Step 3 The parts of this question must he…
8.35 Water is the working fluid in an ideal regenerative Rankine cycle with one closed feedwater heater. Superheated vapor enters the turbine at 10 MPa, 480°C, and the condenser pressure is 6 kPa. Steam expands through the first-stage turbine where some is extracted and diverted to a closed feedwater heater at 0.7 MPa. Condensate drains from the feedwater heater as saturated liquid at 0.7 MPa and is trapped into the condenser. The feedwater leaves the heater at 10 MPa and a temperature equal to the saturation temperature at 0.7 MPa. Determine for the cycle a. the heat transfer to the working fluid passing through the steam generator, in kJ per kg of steam entering the first-stage turbine. 2624 b. the thermal efficiency. 42.7% c. the heat transfer from the working fluid passing through the condenser to the cooling water, in kJ per kg of steam entering the first-stage turbine. 1504.1
Water is the working fluid in a regenerative Rankine cycle with one open feedwater heater. Steam enters the turbine at 1600 lb-/in² and 1100°F and expands to 120 lbf/in.2, where some of the steam is extracted and diverted to the open feedwater heater operating at 120 lbf/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 is incorrect. Determine the net power output of the cycle, in Btu/hr. W cycle= i 1.137e9 Btu/h
Water is the working fluid in an ideal Rankine cycle with reheat. Superheated vapor enters the turbine at 10 MPa, 320°C, and the condenser pressure is 8 kPa. Steam expands through the first-stage turbine to 1 MPa and then is reheated to 320°C. Determine for the cyclea. the heat addition, in kJ per kg of steam entering the first-stage turbine.b. the thermal efficiency.c. the heat transfer from the working fluid passing through the condenser to the cooling water, in kJ per kg of steam entering the first-stage turbine.