TY - JOUR
T1 - Radiation emitted from fluidizing particles adjacent to a heated surface in a fluidized bed
AU - Yamada, Jun
AU - Kurosaki, Yasuo
AU - Morikawa, Tomoyuki
N1 - Funding Information:
This work was supported in part by the Ministry of Education, Science and Culture of Japan under grant No. 03402030.
PY - 1996
Y1 - 1996
N2 - 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.
AB - 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.
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U2 - 10.1299/kikaib.62.234
DO - 10.1299/kikaib.62.234
M3 - Article
AN - SCOPUS:0029754180
SN - 0387-5016
VL - 62
SP - 234
EP - 240
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
IS - 593
ER -