A211 アンモニア/水を用いた新しい海洋温度差発電の高性能化に関する実験的研究(太陽光と温度差発電・熱回収,OS2 自然エネルギー)

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  • A211 Experimental research on advantaged performance of OTEC using ammonia/water mixture

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An Ocean Thermal Energy Conversion (OTEC) is one of the renewable energy. Concerning an improvement on performance of OTEC system, a working fluid flow rate is one of the important operating conditions. On the OTEC system using ammonia/water mixture as working fluid, the effect of the working fluid flow rate has never been clarified. So this paper describes the effect of the working fluid flow rate on the system. As a result, a maximum net turbine power of 15.6kW is obtained at warm and cold water flow rates of 400m^3/h and working fluid flow rate of 6t/h. The characteristic turbine power output was found strongly dependent on the evaporator outlet pressure. So the reduction of the pressure drop between outlet of evaporator and inlet of turbine expected to improve the system efficiency.

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