A 39% maximum efficient coal-fired power plant needs to produce 600 MW of power. 1) To achieve maximum efficiency, if the waste water is dumped into a 13 C lake, what temperature must the steam be heated to? 2) Since coal contains 27 kJ of energy per gram, how many kg of coal must be burned in a day?

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Chapter15: Thermodynamics
Section: Chapter Questions
Problem 8PE: (a) How long will the energy in a 1470kJ (350kcal) cup of yogurt last in a woman doing work at the...
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A 39% maximum efficient coal-fired power plant needs to produce 600 MW of power.

1) To achieve maximum efficiency, if the waste water is dumped into a 13 C lake, what
temperature must the steam be heated to?

2) Since coal contains 27 kJ of energy per gram, how many kg of coal must be burned in a
day?

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