ェクセルギ一に基づくエネルギー高度利用の考え方 廃熱を利用するCEMS社会を目指して

摘要

地球温暖化防止の観点から，省エネルギー，すなわちェ ネルギ一資源の有効利用（エネルギー高度利用）が求めら れている.一次エネルギー資源の70 %が有効利用されず に廃熱になっているという1994年の認識"もあり，一方で， パリ協定から再生可能エネルギー導入は急務であるが，大 量に敷設される太陽電池パネルからの熱ふく射による温暖 化への影響評価も，その普及とともに必要に思われるなど， 将来のエネルギー利用システムの高度化を実現する学術基 盤の構築が今こそ必要である.%About 70 % of primary energy resources are not utilized effectively as waste heat. New indices for evaluating effectiveness of energy utilization by assessing the exergy is proposed to develop an advanced energy utilization. The residential energy demand in a year for 200 families and 408 members including over 60 years old members of the 76 % of the residents is estimated by using an original simulator. Based on new exergy indices, cluster energy management system, CEMS, is applied to residential sector as a cluster composed of multidwelling, shops, a gathering space, and a public bath. The energy supply system is newly assuned by distributed co-generation power-supply systems with batteries of electric vehicles and heat storage tanks. As a result, a possibility of more than 70 % reduction of C0_2 emission is concluded.