Question

Part A A coal-fired plant generates 600 MW of electric power. The plant uses 4.8 ×...

Part A A coal-fired plant generates 600 MW of electric power. The plant uses 4.8 × 106 kg of coal each day. The heat produced by the combustion of coal is 3.3 × 107 J/kg. The steam that drives the turbines is at a temperature of 300°C, and the exhaust water is at 37°C.

Part A

(a) What is the overall efficiency of the plant for generating electric power?

Part B

(b) What is the maximum efficiency that this plant could possibly have using the same temperature extremes that it presently uses?

Part C

(c) How much thermal energy is exhausted each day by this plant?

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