Direct-contact heat exchange between fluidizing particles and a heat transfer surface in a fluidized bed: Temperature visualization of fluidizing particles

Jun Yamada, Norihisa Nagahara, Isao Satoh, Yasuo Kurosaki

研究成果: Article査読

5 被引用数 (Scopus)

抄録

Heat conduction during contact between a heat transfer surface and fluidizing particles, a phenomenon which is one of the effective heat transfer mechanisms in a gas-solid fluidized bed, has been empirically investigated. The temperature profile of the fluidizing particles during the contact period is visualized with the aid of an infrared imager. The visualization reveals that the particles have been considerably heated in the thermal boundary layer on the heat transfer surface before contact. Based on the visualized temperature profile of the particles, the contact conductance between a fluidizing particle and the heat transfer surface is estimated by an in inverse analysis. Using the evaluated contact conductance, the contributions of the conductive heat transfer to the total heat transfer are also evaluated.

本文言語English
ページ(範囲)165-181
ページ数17
ジャーナルHeat Transfer - Asian Research
31
3
DOI
出版ステータスPublished - 2002 5 1
外部発表はい

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Fluid Flow and Transfer Processes

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