Physics for Scientists and Engineers: A Strategic Approach 5th Edition · Heat Engines and Refrigerators · Problem 51
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Randall D. Knight — Heat Engines and Refrigerators: Problem 51
A typical coal-fired power plant burns 300 metric tons of coal every hour to generate 750 MW of electricity. 1 metric ton = 1000 kg. The density of coal is \(1500 \text{ kg/m}^3\) and its heat of combustion is \(28 \text{ MJ/kg}\). Assume that all heat is transferred from the fuel to the boiler and that all the work done in spinning the turbine is transformed into electric energy. a. Suppose the coal is piled up in a 10 m x 10 m room. How tall must the pile be to operate the plant for one day? b. What is the power plant's thermal efficiency?
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주어진 조건: 750 MW, 1000 kg, . a, 10 m
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Physics for Scientists and Engineers: A Strategic Approach · 5th Edition
저자: Randall D. Knight
출판사: Pearson
단원: Heat Engines and Refrigerators