Effect of Pellet Size on Discharge Characteristics of Latent Heat Storage Columns Packed With Cross-Linked Polymer Pellets
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概要
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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.
著者
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MIYATAKE Osamu
Department of Chemical Systems and Engineering, Kyushu University
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Koito Yasushi
Department Of Chemical Engineering Kyushu University
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Tanaka Kazuyoshi
Department Of Biofunctional Informatics Graduate School Of Health Care Sciences Tokyo Medical And De
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Tanaka Kazuyoshi
Department Of Chemical Engineering Kyushu University
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TAGAWA Kotaro
Department of Chemical Engineering, Kyushu University
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MARUTA Yasuhiro
Department of Chemical Engineering, Kyushu University
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Tagawa K
Department Of Chemical Engineering Kyushu University
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Tagawa Kotaro
Department Of Chemical Engineering Kyushu University
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Maruta Yasuhiro
Department Of Chemical Engineering Kyushu University
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Miyatake Osamu
Department Of Chemical Engineering Kyushu University
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