今世紀の世界の3Eトリレンマにおける日本の海洋エネルギー

概要

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In consideration with the global trilemma of 3E (Economy, Energy, Environment), Japanese marine energy is reviewed for this century. The highest priority should be set on social sustainability. However, the question is how many years the society should keep sustainable, as the sustainability is perturbed not only by the human activities but also by planetary or universal activities. So far as human activities are concerned, attention should be paid to waste not only of materials but also of heat. In particular, waste heat under the sea surface should be elaborately released to the tropopause, as the second law of thermodynamics does not allow waste heat to be exhaustively converted. The United Nations expects global-population increase to slow down during this century. Labor-cost cut by improvement of labor productivity without discovery of new demand from stable population will results in wage cut or in unemployment-ratio increase. Depending on the future costs against typhoons and marine bio-fouling, wave farms off and north of the Boso Peninsula and ocean thermal energy conversion of the Kuroshio Current are estimated as highly potential.
日本開発工学会の論文