Melting and solidification heat transfer characteristics of phase change material in a latent heat storage vessel: Effect of perforated partition plate

作者：Horibe Akihiko^*; Jang Hyeon; Haruki Naoto; Sano Yoshihiko; Kanbara Hiroaki; Takahashi Kazuo

来源：International Journal of Heat and Mass Transfer, 2015, 82: 259-266.

DOI：10.1016/j.ijheatmasstransfer.2014.11.050

• Erythritol
• Latent heat
• Phase change
• Direct contact

Recently, latent heat thermal energy storage system has gained attentions in order to utilize the middle temperature factory waste heat (100-200 degrees C). The purpose of this study is to develop heat storage system with a latent heat storage material for using the middle temperature heat. In this study, the direct contact melting and solidification behavior between heat transfer fluid (oil) and erythritol (PCM) were visualized in order to investigate the characteristics of heat storage and release at difference flow rate of oil (1.0-4.0 kg/min) and the effects of perforated partition plate. In this direct contact method, if the packed height of erythritol increases due to porous solidification, erythritol may be flowed out from a vessel with oil. So to control the packed erythritol height, the effect of a perforated partition plate in the vessel was investigated. As a result, it is found that since the bubbles of PCM are broken by the perforated partition plate, it prevents that the solidified height of PCM increases.

• 出版日期2015-3