I have done an example to calculate the actual max efficiency of a power plant given the temperatures of both the hot and cold reservoirs. My book, however, tells me nothing about how to calculate any of the following questions.
A power plant produces 1 GW of electricity, at an efficiency of 40%.
(a) At what rate does this plant expel waste heat into its environment?
(c) To avoid this "thermal pollution" of the river, the plant could instead be cooled by evaporation of river water. At what rate must the water evaporate?What fraction of the river must be evaporated?
Please see the attached file for detailed solution.
a) An ...
The solution shows how to calculate the heat produced by a power plant.