Q4 A suggestion for renewable energy generation is to use the temperature differences in the ocean between the warm surface water and the colder deep water to drive a heat engine. In the tropics this temperature difference can be as great as 20 °C. Calculate the maximum % efficiency that can be expected from a heat engine based on this temperature difference, assuming that the deep cold water is at a temperature of 5 °C.
Q4 A suggestion for renewable energy generation is to use the temperature differences in the ocean between the warm surface water and the colder deep water to drive a heat engine. In the tropics this temperature difference can be as great as 20 °C. Calculate the maximum % efficiency that can be expected from a heat engine based on this temperature difference, assuming that the deep cold water is at a temperature of 5 °C.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
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Transcribed Image Text:Q4 A suggestion for renewable energy generation is to use the temperature differences in the ocean
between the warm surface water and the colder deep water to drive a heat engine. In the tropics
this temperature difference can be as great as 20 °C. Calculate the maximum % efficiency that can be
expected from a heat engine based on this temperature difference, assuming that the deep cold
water is at a temperature of 5 °C.
Q5) A power plant generates 500 MW at 34 % efficiency. The waste heat goes into a river which has
an average flow rate of 3 x 10ʻ kg.st. How much does the temperature of the river rise during the
operation of the power plant ?
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