An Electrical Generating Plant Operates at a Boiler Temperature of 229°C

question 27

Multiple Choice

An electrical generating plant operates at a boiler temperature of 229°C and exhausts the unused heat into a nearby river at 18°C.If the generating plant has a power output of 870 megawatts (MW) and if the actual efficiency is 3/4 the theoretical efficiency,how much heat per second must be delivered to the boiler? (0°C = 273 K)
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• A) 8,279 MW
• B) 4,140 MW
• C) 2,070 MW
• D) 2,760 MW
• E) 1,600 MW