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Author Question: Every second at Niagara Falls, some 5 000 m3 of water falls a distance of 50 m. What is the increase ... (Read 90 times)

FButt

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on: Jul 28, 2018
Every second at Niagara Falls, some 5 000 m3 of water falls a distance of 50 m. What is the increase in entropy per second due to the falling water? (Assume a 20C environment).

Question 2

In a nuclear power plant, the reactor produces 500C steam that is used to power the steam turbines which generate 1 500 MW of electrical power. The cooling tower eliminates the waste heat at 50C. If the efficiency of the plant were that of a Carnot engine, at what rate would waste heat be vented to the atmosphere?


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scottmt

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Reply #1 on: Jul 28, 2018
Answer to Question 1

8 360 kJ/K

Answer to Question 2

1 080 MW


FButt

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Reply 2 on: Jul 28, 2018
Gracias!

ghepp

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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