Chapter 8, Problem 8.2E

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 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…

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…

Geothermal power plants use underground sources of hot water or steam to produce electricity. If a plant receives hot water at 350 F and rejects energy by heat transfer to the atmosphere at 60 F, what is the maximum possible efficiency for the power cycle? 64% 100% 83% 17% O 36%

Please help and show solution please

What are the advantages & Disadvantages of Thermoelectric Power Plant ?

If the efficiencies of a power plant, turbine and generator (in the power plant) are 0.36, 0.5 and 0.9 respectively, then the thermal energy produced from 95*10^5 Cal of coal in the boiler is kcal --- O 7600 O 11875 76*10^5 O 118.8*10^5

In a fuel fired steam-electric power plant, the output required is 250MW over a 10 hour period. Given the following efficiencies, Generator-90%, Turbine – 50%, Boiler – 85%; give the output power (in units as required) for each stage of the plant:i)Turbine (BTU) ii)Boiler (BTU)

13