A 250 kW Ocean Thermal Energy Conversion (OTEC) pilot installation operating at

Question

A 250 kW Ocean Thermal Energy Conversion (OTEC) pilot installation operating at Kona
at the Hawaii's Big Island has demonstrated that OTEC is indeed a feasible method of generating energy
at tropical islands and coastal regions. An OTEC power plant uses warm surface water as a "hot source",
and cold water pumped from the depth of about 1000 m as a "heat sink". A design has been prepared for
a new larger plant. Water of 5 ac will be pumped from a 1000 m depth at the rate of 1750 kgjs, and water
of 27

Explanation / Answer

Realistic efficiency = 0.815 - [P (Supply power) / I (Input Heat rate)]

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