D117 アンモニア/水を作動流体として用いた海洋温度差発電システムに関する実験的研究(温度差・太陽,OS-2 自然エネルギー(1),一般講演,地球温暖化防止と動力エネルギー技術)

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  • D117 Experimental research of OTEC using ammonia/water mixture as working fluid

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An Ocean Thermal Energy Conversion (OTEC) is one of the renewable energy. The non-azeotropic mixtures have been utilized as working fluid for enhancing the thermal efficiency of OTEC system. In this paper, it was conducted an experiment on the characteristic of the OTEC system using a new evaporator for low pressure drop, and evaluation of turbine power, net power and the ratio of net work to maximum work. New plate type evaporator has lower pressure drop. As an experimental result of comparison with previous type evaporator, higher net power is obtained. In the case that warm source temperature is 31℃ and cold source temperature is 8℃, around 24% of the ratio of net work to maximum work is achieved.

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