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Главная Архив Thermal Letter Оргкомитет Будущие конференции AIHTC
International Heat Transfer Conference 16

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

A NOVEL TECHNIQUE FOR LATENT HEAT TRANSPORT USING SUPER HYDROPHOBIC FLEXIBLE GEL

Takumu Otsubo
1Department of Chemical Science and Engineering, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe-shi, Hyogo 657-8501

Tomohiro Senda
Department of Chemical Science and Engineering, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe-shi, Hyogo 657-8501

Ruri Hidema
Department of Chemical Science and Engineering, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe-shi, Hyogo 657-8501, Japan; Complex Fluid and Thermal Engineering Research Center (COFTEC), Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe-shi, Hyogo 657-8501, Japan

Hiroshi Suzuki
Department of Chemical Science and Engineering, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe-shi, Hyogo 657-8501, Japan; Complex Fluid and Thermal Engineering Research Center (COFTEC), Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe-shi, Hyogo 657-8501, Japan

Yoshiyuki Komoda
Department of Chemical Science and Engineering, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe-shi, Hyogo 657-8501, Japan; Complex Fluid and Thermal Engineering Research Center (COFTEC), Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe-shi, Hyogo 657-8501, Japan

Kosuke Suzuki
Department of Chemical Science and Engineering, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe-shi, Hyogo 657-8501

Masao Iwaya
R&D Headquarters, DAICEL CORPORATION, JR Shinagawa East Building, 2-18-1 Konan, Minato-ku, Tokyo 108-8230

Masaru Endo
R&D Headquarters, DAICEL CORPORATION, JR Shinagawa East Building, 2-18-1 Konan, Minato-ku, Tokyo 108-8230

Naotaka Nishio
R&D Headquarters, DAICEL CORPORATION, JR Shinagawa East Building, 2-18-1 Konan, Minato-ku, Tokyo 108-8230

DOI: 10.1615/IHTC16.ecs.022579
pages 4311-4318


Ключевые слова: Thermal storage, New materials, Latent heat transportation, Super-Hydrophobic Marshmallow-like Gel

Аннотация

A novel technique for transporting phase change paraffin such as tetradecane has been suggested. Namely, the porous particle of super-hydrophobic flexible gel, named marshmallow-like gel, is used for a carrier of paraffin. In this study, the dispersion characteristics of the super-hydrophobic flexible marshmallow like gel were mainly focused on. The gel particles containing tetradecane were measured by using a differential scanning calorimeter (DSC). As the dispersants, sodium carboxymethyl cellulose was tested. The concentration of CMC was changed from 0 to 5 wt% in water. The mass fraction of marshmallow-like gel particles was 10 wt% in each solution. The flow characteristics of the gel slurry was also measured with once-through type flow path. From the results, it was confirmed that the gel particles were well dispersed by CMC when its concentration was set at larger than 0.6 wt%. The latent heat quantity of the sample indicated 72.6% of tetradecane contained in the gel. The friction coefficient of the gel slurry took higher values than that of water, but it was almost the same values with the CMC solution without gel. It indicated the gel particles was well dispersed in water by CMC addition. From these experiments, it was concluded that marshmallow-like gel was a promising candidate as latent heat transporting carrier of paraffin.

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