Abstract
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.
