a steam power plant receives heat from a furnace at a rate of 280 gj/h. heat losses to the surrounding air from the steam as it passes through the pipes and other components are estimated to be about 8 gj/h. if the waste heat is transferred to the cooling water at a rate of 165 gj/h, determine (a) net power output and (b) the thermal efficiency of this power plant.

Question

15-11-2022
Engineering

contestada

a steam power plant receives heat from a furnace at a rate of 280 gj/h. heat losses to the surrounding air from the steam as it passes through the pipes and other components are estimated to be about 8 gj/h. if the waste heat is transferred to the cooling water at a rate of 165 gj/h, determine (a) net power output and (b) the thermal efficiency of this power plant.

Respuesta :

Otras preguntas

ased on his actions with the beggar at the city gate, what can be inferred about the king in "A Just Judge"? A. He is afraid of the poor. B. He wishes to escape

The team raises most of their money at the bake sale. The error in this sentence is a A) pronoun-antecedent voice agreement error. B) pronoun-antecedent number

What is the median of the data? 19, 18, 12, 22, 15, 14, 16, 16, 14, 14, 21, 18 A. 17 B. 15 C. 14 D. 16

All human beings are born free and equal in dignity and rights. They are endowed with reason and conscience and should act towards one another in a spirit of br

What was acient Egypts economy based on? How did it grow?

A circle has a radius of length r. If you mark off an arc on the circle of length 2r what is the measurement of the angle that subtends the arc? A 2pi radians

The scientific evidence that scientists use in supporting or critiquing the conclusions of experiments usually consists of a)raw data. b)outlier data. c)precise

Divide and simplify completely. Assume that no denominator equals zero. d^2-1/d^2-d divided by d - 1/d

The crisis that spurred the UN to create an international law against genocide was the .

how did the cold war affect the development of the global age?

kumarravichandra kumarravichandra · Answer 1 · 2022-11-26T20:54:38+01:00

The net output is 35.28 MW and the thermal efficiency of this power plant is 45.35%

The net power output is obtained by subtracting the heat losses and heat getting rejected to the cooling water from heat supplied to the steam power plant

e. W. out = Qin-Qout-Qloss

Wout = 280 – 145 – 8 = 127GJ/h

Wout= 127 GJ/hX1000MJ/ 1GJ *1h /36005= 35.28 MW

Thermal efficiency can be given as:

ηth=Wout/Qin =127GJ/h/280GJ x 100 = 45.35%

A power plant is a type of commercial building that uses primary energy to produce electricity. To deliver power to the electrical grid and meet society's electrical needs, most power plants employ one or more generators that transform mechanical energy into electrical energy. Raw energy sources like coal, nuclear heat, or wind are transformed by power plants into useful energy in the form of electricity. One of the most popular kinds of power plants is a thermal power plant, which generates energy by burning fuel and converting it to electricity.

Learn more about power plant here:

https://brainly.com/question/7670779

#SPJ4