An experimental power plant at the Natural EnergyLaboratory of Hawaii generates electricity from the temperature gradientof the ocean. The surface and deep-water temperatures are 27C and6C, respectively. (a) What is the maximum theoretical efficiency of thispower plant? (b) If the power plant is to produce 210 kW of power, atwhat rate must heat be extracted from the warm water? At what ratemust heat be absorbed by the cold water? Assume the maximum theoreticalefficiency. (c) The cold water that enters the plant leaves it at atemperature of 10C. What must be the flow rate of cold water throughthe system? Give your answer in kg/h and in L/h.

An experimental power plant at the Natural EnergyLaboratory of Hawaii generates electricity from the temperature gradientof the ocean. The surface and deep-water temperatures are 27C and6C, respectively. (a) What is the maximum theoretical efficiency of thispower plant? (b) If the power plant is to produce 210 kW of power, atwhat rate must heat be extracted from the warm water? At what ratemust heat be absorbed by the cold water? Assume the maximum theoreticalefficiency. (c) The cold water that enters the plant leaves it at atemperature of 10C. What must be the flow rate of cold water throughthe system? Give your answer in kg/h and in L/h.

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