A 33% efficient power plant puts out 850 MW of electrical

Chapter 22, Problem 62GP

(choose chapter or problem)

Problem 62GP

A 33% efficient power plant puts out 850 MW of electrical power. Cooling towers are used to take away the exhaust heat. (a) If the air temperature is allowed to rise 7.0 C°, estimate what volume of air (km3) is heated per day. Will the local climate be heated significantly? (b) If the heated air were to form a layer 200 m thick, estimate how large an area it would cover for 24 h of operation. Assume the air has density 1.2 kg/m3 and that its specific heat is about 1.0kJ/kg·C° at constant pressure.

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