A proposed ocean thermal-energy conversion (OTEC) system is a heat engine that would operate between warm water (25 degrees C) at the ocean’

Question

A proposed ocean thermal-energy conversion (OTEC) system is a heat engine that would operate between warm water (25 degrees C) at the ocean’s surface and cooler water (5 degrees C) 1,000 m below the surface. What is the maximum possible efficiency of the system?

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Tryphena 6 months 2021-08-05T21:44:54+00:00 1 Answers 13 views 0

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    2021-08-05T21:46:53+00:00

    Answer:

     \eta=0.067

    Explanation:

    Given that

    Temperature of warm water ,T₁ = 25 °C

    Temperature of cold water ,T₂ = 5 °C

    The maximum possible efficiency of any heat is will be same as the efficiency of the Carnot heat engine.Therefore the maximum efficiency of OTEC system is given as follows

    \eta=1-\dfrac{T_2}{T_1}      

    T should be Kelvin scale

    Now by putting the values

    \eta =1-\dfrac{5+273}{25+273}

    \eta=0.067

    Therefore the maximum efficiency will be 0.067 or 6.7%.

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