潜熱蓄熱を利用した貯湯槽の温度分布分析

抄録

Storage-type water heating systems have been used widely in residential applications, and it is important to make the sizes of storage tanks smaller for space saving. One of the ways to realize that is to incorporate phase change materials (PCMs) into the tanks and increase the density of stored heat by utilizing the latent heat of PCMs. A simulation model has been proposed to analyze the performance of a water heating system with a storage tank using PCM. In this paper, the validity of the simulation model in which supercooling of PCM in taken into account is investigated by comparing experimental and simulated results concerning temperature distributions and changes of the storage tank and PCM during, storage, and discharging. The investigation shows that the simulated results coincide with experimental ones qualitatively.