社団法人日本機械学会 Acta Medica Okayama 0387-5016 63 616 1997 形状安定化球状潜熱蓄熱粒子を用いた流動層型潜熱蓄熱槽の放熱特性 207 214 EN Hideo Inaba Akihiko Horibe Koichi Ozaki Takayuki Yamazawa This paper deals with heat energy release characteristics of shape-stabilized latent heat energy storage particles packed into a fluidized bed-type cylindrical heat energy storage vessel. This type of latent heat energy storage material consists of normal paraffin (pentacosane C_<25>H_<52>, latent heat : 164 kJ/kg, melting point of 327.2K) as a latent heat material, and polyethylene as a shape-stabilizing material. The effects of cold inlet air temperature and flow rate, and the amount of heat energy storage particles on the outlet air temperature from the heat storage vessel and the completion time of the heat energy release process were investigated. As a result, the non-dimensional correlations for the outlet air temperature from the heat storage vessel and the completion time of the heat energy release process were expressed in terms of non-dimensional pumping power, Stefan number and ratio of the packed particle layer height to the diameter of the cylindrical heat storage vessel. No potential conflict of interest relevant to this article was reported.