Model Analysis of Energy Network System in Zero Emission Industrial Park

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  • SHIMAZAKI Yoichi
    Social System Engineering, Division of Engineering, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi

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The aim of this study was to evaluate energy saving in cases of introducing both a cogeneration system and an energy network in Kokubo Industrial Park. The industrial park has implemented zero emission activities since 1992. The energy data of 22 factories were classified into steam, hot water, heating, cooling and electric power on the basis of interviews. The author developed an energy network model based on linear programming, so as to minimize the total system cost. The industrial park was divided into a 10,000 square meter mesh in order to take steam transport into consideration. Three cases were investigated. The ratio of energy saving to demand reached 22% compared with the reference system. It was found that the energy network system could correspond to the energy demand seasonally. This is useful for the stable supply of energy, prevention of air pollution, and improvement of urban design.

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