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

11 引用 (Scopus)

抜粋

We experimentally investigated the radiation heat exchange occurring in a gas-solid fluidized bed (kept at 25°C) between the fluidizing particles and a remotely-heated heat transfer surface (30°C). To evaluate this heat exchange, radiation emitted from the fluidizing particles towards the heated surface was measured through a transparent heat transfer surface using an infrared imager. Our experimental results revealed that the fluidizing particles are mainly heated by conduction during the contact period with the surface and/or by gas convection in the thermal boundary layer, and that these heated particles frequently emit a significant amount of radiation energy toward the surface. Based on these results, a method for evaluating the radiation heat exchange between the heat transfer surface and the fluidizing particles is proposed. The proposed method shows that particle diameter is one of the most significant parameters in the radiation heat exchange, and predicts that the radiation heat exchange increases with increasing particle diameter.

元の言語English
ページ(範囲)104-113
ページ数10
ジャーナルInternational Journal of Thermal Sciences
40
発行部数1
DOI
出版物ステータスPublished - 2001 1
外部発表Yes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Engineering(all)

フィンガープリント Radiation emitted from fluidizing particles adjacent to a heated surface in a fluidized bed' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用