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1994 Optimum Design Point for a Closed-Cycle OTEC System
Performance analysis is performed for optimum design point of a closed-cycle ocean thermal energy conversion (OTEC) system. Calculations are made for an OTEC model plant with a gross power of 100MW, designed by the optimization method proposed by Uehara and Ikegami, with design conditions of 21°C - 29°C for the warm sea water temperature and 4°C for the cold sea water temperature. Ammonia is used as working fluid. Plate type evaporator and condenser are used as heat exchangers. The length of the cold sea water pipe is 1000m. This model plant is a floating-type OTEC plant. The objective function of optimum design point is defined as the total heat transfer area to heat exchangers per the annual net power.
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