A power plant delivers 900.0 MW of usable energy and dumps 2100.0 MW of waste heat...
A power plant delivers 900.0 MW of usable energy and dumps 2100.0 MW of waste heat into a nearby river at 15*C. What is the minimum temperature that the combustion locaiton could possibly have?
Homework Answers
Here ,
Work done = 900 MW
heat lost = 2100 MW
total energy from the hot reservior , Qh = 2100 + 900
Qh = 900 MW
Now , let the temperature of the combustion of the location is Th
W/Qh = 1 -Tc/Th
900/3000 = 1 - (15 + 273)/Th
Th = 411.4 K = 138.3 degree C
the minimum temperature that the combustion locaiton could possibly have is 138.3 degree C
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