The figure below shows a vapor power cycle that provides process heat and produces power. The steam generator produces vapor at 500 lbf/in.2, 800°F, at a rate of 8 x 105 lb/h. Fifty-two percent of the steam expands through the turbine to 10 lbf/in.² and the remainder is directed to the heat exchanger. Saturated liquid exits the heat exchanger at 500 lbf/in.² and passes through a trap before entering the condenser at 10 lbf/in.² Saturated liquid exits the condenser at 10 lbf/in.² and is pumped to 500 lbf/in.² before entering the steam generator. The turbine and pump have isentropic efficiencies of 85% and 89%, respectively. For the process heat exchanger, assume the temperature at which heat transfer occurs is 465°F. Let To = 60°F, po = 14.7 lbf/in.²

The figure below shows a vapor power cycle that provides process heat and produces power. The steam generator produces vapor at 500 lbf/in.2, 800°F, at a rate of 8 x 105 lb/h. Fifty-two percent of the steam expands through the turbine to 10 lbf/in.² and the remainder is directed to the heat exchanger. Saturated liquid exits the heat exchanger at 500 lbf/in.² and passes through a trap before entering the condenser at 10 lbf/in.² Saturated liquid exits the condenser at 10 lbf/in.² and is pumped to 500 lbf/in.² before entering the steam generator. The turbine and pump have isentropic efficiencies of 85% and 89%, respectively. For the process heat exchanger, assume the temperature at which heat transfer occurs is 465°F. Let To = 60°F, po = 14.7 lbf/in.²

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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The figure below shows a vapor power cycle that provides process heat and produces power. The steam generator produces vapor at 500 lbf/in.2, 800°F, at a rate of 8 x 104 lb/h. Fifty-two percent of the steam expands through the turbine to 10 lbf/in.2 and the remainder is directed to the heat exchanger. Saturated liquid exits the heat exchanger at 500 lbf/in.2 and passes through a trap before entering the condenser at 10 lbf/in.2Saturated liquid exits the condenser at 10 lbf/in.2 and is pumped to 500 lbf/in.2 before entering the steam generator. The turbine and pump have isentropic efficiencies of 85% and 89%, respectively. For the process heat exchanger, assume the temperature at which heat transfer occurs is 465°F. Let T0 = 60°F, p0 = 14.7 lbf/in.2 Determine:(a) the magnitude of the process heat production rate, in Btu/h.(b) the magnitude of the rate of exergy output, in Btu/h, as net work.(c) the rate of exergy transfer, in Btu/h, to the working fluid passing through the steam…
The figure below shows a vapor power cycle that provides process heat and produces power. The steam generator produces vapor at 500 lbf/in.², 800°F, at a rate of 8 x 105 lb/h. Eighty-eight percent of the steam expands through the turbine to 10 lbf/in.² and the remainder is directed to the heat exchanger. Saturated liquid exits the heat exchanger at 500 lbf/in.2 and passes through a trap before entering the condenser at 10 lbf/in.² Saturated liquid exits the condenser at 10 lbf/in.2 and is pumped to 500 lbf/in.2 before entering the steam generator. The turbine and pump have isentropic efficiencies of 85% and 89%, respectively. For the process heat exchanger, assume the temperature at which heat transfer occurs is 465°F. Let To = 60°F, po = 14.7 lbf/in.² Determine: Steam generator 1₂=89% P-500lb/² 7₁ = 80XFF M₁ Heat exchanger Pamp B 1 (1-y) гибши 4-85% P= 500 lbfin? saturated liquid P=10 lbffin² saturated liquid Turbine W₁ Py=1002 me Condenser (a) the magnitude of the process heat…
The figure below shows a vapor power cycle that provides process heat and produces power. The steam generator produces vapor at 500 lbf/in.², 800°F, at a rate of 8 x 105 lb/h. Eighty-eight percent of the steam expands through the turbine to 10 lbf/in.² and the remainder is directed to the heat exchanger. Saturated liquid exits the heat exchanger at 500 lbf/in.² and passes through a trap before entering the condenser at 10 lbf/in.² Saturated liquid exits the condenser at 10 lbf/in.² and is pumped to 500 lbf/in.² before entering the steam generator. The turbine and pump have isentropic efficiencies of 85% and 89%, respectively. For the process heat exchanger, assume the temperature at which heat transfer occurs is 465°F. Let To = 60°F. Po = 14.7 lbf/in.² Determine: Steam generator P₁=500 lbf/in.2 T₁ = 800°F 7p=89% Heat exchanger Pump (y) 1 minn (1-y) 77 = 85% Oprocess P4= 500 lbf/in.² saturated liquid P3= 10 lbf/in.² saturated liquid Turbine W₂ P₂=10 lbf/in.² 2 Condenser (a) the…
The figure below shows a vapor power cycle that provides process heat and produces power. The steam generator produces vapor at 500 lbf/in.2, 800°F, at a rate of 8 x 104 lb/h. Eighty-eight percent of the steam expands through the turbine to 10 lbf/in.2 and the remainder is directed to the heat exchanger. Saturated liquid exits the heat exchanger at 500 lbf/in.2 and passes through a trap before entering the condenser at 10 lbf/in.2Saturated liquid exits the condenser at 10 lbf/in.2 and is pumped to 500 lbf/in.2 before entering the steam generator. The turbine and pump have isentropic efficiencies of 85% and 89%, respectively. For the process heat exchanger, assume the temperature at which heat transfer occurs is 465°F. Let T0 = 60°F, p0 = 14.7 lbf/in.2 Determine:(a) the magnitude of the process heat production rate, in Btu/h.(b) the magnitude of the rate of exergy output, in Btu/h, as net work.(c) the rate of exergy transfer, in Btu/h, to the working fluid passing through the steam…
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A heat exchanger uses medium pressure steam at 10 bar and 350 C to heat cyclohexane vapor from 100 C up to 275 C as shown in the figure below. The steam is available at a flowrate of 32 kg/h and it condenses completely in the heat exchanger and exits as saturated liquid condensate at 10 bar. a) How much heat (in kW) can be provided by the steam? b) How much cyclohexane can be processed in kg/h? Vapor Cyclohexane T = 100 C P = 1 atm Steam T = 350 C = 10 bar Condensate P Vapor Cyclohexane T = 275 C P = 1 atm P = 10 bar
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6. The following image shows Carnot cycle beginning from the point A and returns back to A. a) Using adiabatic expansion and isothermal expansion, prove that this cycle (1-4) has no net change in entropy. (dS = 0) b) Prove that the efficiency of any machine is only dependent on the temperature difference of hot source and cold sink. work performed 71- heat absorbed fro hot source c) In an ideal heat engine, the cold sink is at 5 °C. If 250.0 kJ of heat is withdrawn from the hot source and 200.0 kJ of work is generated, what is the initial temperature of the hot source? Pressure p D Adiabat 1 Isotherm Adiabat Isotherm 3 Volume, V B
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