B225 臭化リチウム水溶液を利用した蓄エネルギーシステムの検討

概要

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In this study, it is suggested effective energy utilization by concentrating and storage of working fluid for absorption refrigeration systems using surplus heat or cheap electricity in midnight. Concentrating of lithium-bromide aqueous solution of one of the working fluid for absorption refrigeration systems have effect as storage of evaporative latent heat of water. 75wt% lithium-bromide aqueous solution can absorb water becoming thin to 58wt%, and this mean storage of water latent heat of 730kJ/kg. This fact effect over twice of an ice thermal storage system because that is about 323kJ/kg (IPF=0.9). Stocked high concentrate lithium-bromide aqueous solution can be used on absorption refrigeration systems in daytime and cut peak of electricity. An energy storage system by using lithium-bromide aqueous solution is estimated the possibility of progress comparing with an ice thermal storage system. The latent heat, volume of a system, costs, merits or demerits and others are discussed in this report.
一般社団法人日本機械学会の論文
2002-11-06