Radiation emitted from fluidizing particles adjacent to a heated surface in a fluidized bed

Jun Yamada, Yasuo Kurosaki, Tomoyuki Morikawa

研究成果: Article査読

抄録

We experimentally investigated the radiation heat exchange occurring in a gas-solid fluidized bed between the fluidizing particles and a heated heat transfer surface. To evaluate this heat exchange, radiation emitted from fluidizing particles located adjacent to the heated surface was measured using an infrared imager through the transparent MgF2 heated surface, which was remotely heated by a CO2 laser. Our results revealed that the fluidizing particles are indeed heated by the surface. In addition, we found that these particles frequently emit a significant amount of radiation energy against the surface, which suppresses the radiation heat exchange between it and the fluidizing particles, and that the radiation energy increases with decreasing particle diameter and increasing particle emissivity.

本文言語English
ページ(範囲)234-240
ページ数7
ジャーナルNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
62
593
DOI
出版ステータスPublished - 1996
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学
  • 機械工学

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