A210 アンモニア/水を用いた海洋温度差発電の評価方法(太陽光と温度差発電・熱回収,OS2 自然エネルギー)

概要

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An ammonia/water as working fluid is used for the ocean thermal energy conversion system (OTEC) to decrease an irreversible loss in heat exchangers. And this fluid is expected to improve the system performance. It is important to clear the characteristic and the true evaluation of heat exchanger in OTEC ststem. Therefore, it is important that the clarification of characteristic in heat exchangers. At this time, logarithmic temperature difference (LMTD) method that is limited when considered that physical properties of fluids are constant is used for the performance evaluation in heat exchangers in OTEC. Then, a generalized mean temperature difference (GMTD) method that can consider the change of the physical properties value of fluids is introduced into the evaluation of characteristics of heat exchangers that uses ammonia/water in this paper. GMTD was introduced into the evaluation of heat exchangers of OTEC using ammonia/water and the influence given to the evaluation of the characteristic, effectiveness, and system characteristics was clarified.
一般社団法人日本機械学会の論文
2009-06-28