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An experimental power plant at the Natural Energy
Laboratory of Hawaii generates electricity from the temperature gradient
of the ocean. The surface and deep-water temperatures are 27 C and
6 C, respectively. (a) What is the maximum theoretical efficiency of this
power plant? (b) If the power plant is to produce 210 kW of power, at
what rate must heat be extracted from the warm water? At what rate
must heat be absorbed by the cold water? Assume the maximum theoretical
efficiency. (c) The cold water that enters the plant leaves it at a
temperature of 10 C. What must be the flow rate of cold water through
the system? Give your answer in kg/h and in L/h.
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