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23 Nov 2019

A coal-fired plant generates 600 MW of electric power. The plantuses 4.8 x 106 kg of coal each day. The heat of
combustion of coal is 3.3 x 107 J/kg. The steam that drives theturbines is at a temperature of 300 C, and the exhaust water isat
37 C. What is the overall efficiency of the plant for generatingelectric power

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Irving HeathcoteLv2
23 Nov 2019
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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

A typical coal-fired power plant burns 290 metric tons of coalevery hour to generate 730 MW of electricity. 1 metric ton=1000 kg.The density of coal is 1500 kg/m^3 and its heat of combustion is 28MJ/kg. Assume that all heat is transferred from the fuel to theboiler and that all the work done in spinning the turbine istransformed into electrical energy.

a.) Suppose the coal is piled up in a 13.0 m 14.0 m room. How tallmust the pile be to operate the plant for one day? (in m)

b.) What is the power plant's thermal efficiency? (in %)

A typical coal-fired power plant burns 250 metric tons of coalevery hour to generate 800 MW of electricity. 1 metric ton= 1000kg. The density of coal is 1500 {\rm kg}/{\rm m}^{3} and its heatof combustion is 28 \;\rm MJ/kg. Assume that all heat istransferred from the fuel to the boiler and that all the work donein spinning the turbine is transformed into electricalenergy.
Suppose the coal is piled up in a 8.0 m \times 15 m room. How tallmust the pile be to operate the plant for one day?
What is the power plant's thermal efficiency?

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