Effect of Pellet Size on Discharge Characteristics of Latent Heat Storage Columns Packed with Cross-Linked Polymer Pellets

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

KOTARO TAGAWA¹  KAZUYOSHI TANAKA¹  YASUSHI KOITO¹  OSAMU MIYATAKE¹  YASUHIRO MARUTA¹ 

[1]Department of Chemical Engineering, Kyushu University

关键词: Heat Transfer;    Latent Heat Storage;    Cross-Linked Polymer Pellets;    Experiment;    Numerical Analysis;   

DOI  :  10.1252/jcej.34.819

来源: Maruzen Company Ltd

【 摘 要 】

References(17)Experimental and numerical analyses are conducted to investigate the effect of the size of a formstable phase change material (FS-PCM) on discharge characteristics of packed-bed latent heat storage columns. Two types of cross-linked polymer pellets having different dimensions are used as the FS-PCM and water is used as the heat transfer fluid (HTF). Experimental results on the heat transfer in the packed bed of each FS-PCM and the discharge characteristics of the packed bed are reported. By using the empirical equations for estimating the heat transfer coefficient between the FS-PCM and the HTF obtained in the present experiment, the transient variation of the temperature of the HTF at the outlet of the packed bed is calcualted with a numerical method, and they agree with the experimental results under various operating conditions. It is also shown that by increasing the contact time between the FS-PCM and the HTF in the packed bed, the demerits caused by the thermal resistance in the FS-PCM and between the FS-PCM and the HTF are overcome.

【 授权许可】

Unknown