In regions where the temperature does not change much throughout the year, the surface water temperature is warm throughout the year. Since the energy absorbed by the upper water layer cannot pass to the lower, a temperature difference occurs between the surface and the depths. A power plant will be designed to take advantage of this natural state. If we consider the surface at 30 °C as the reservoir, and the water layer at 10 m depth and 5 °C temperature as a sink,    a)Indicate which energy engines should be used in this power plant by drawing the flow chart of the plant.  b)Determine the maximum thermal efficiency of this power plant.

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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In regions where the temperature does not change much throughout the year, the surface water temperature is warm throughout the year. Since the energy absorbed by the upper water layer cannot pass to the lower, a temperature difference occurs between the surface and the depths. A power plant will be designed to take advantage of this natural state. If we consider the surface at 30 °C as the reservoir, and the water layer at 10 m depth and 5 °C temperature as a sink,    a)Indicate which energy engines should be used in this power plant by drawing the flow chart of the plant.  b)Determine the maximum thermal efficiency of this power plant.

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