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Issue
Korean Journal of Chemical Engineering,
Vol.16, No.2, 260-264, 1999
Hear Transfer in a High Temperature Fluidized Bed
Lee JC, Han GY, Yi CK
The heat transfer characteristics between the bed and immersed tube in a high temperature fluidized bed (7.5 cm 1.D.× 70 cm H) were investigated with sand and iron ore particles. The heat transfer coefficients were measured at operating temperatures of 200-600℃ and gas velocities of 1-10 Umf. The bed emissivity measured by the radiation probe was found to be 0.8-0.9. The experimentally obtained radiative heat transfer coefficient was in the range of 30-80 W/m2K for the operating temperature of 400-800℃ and the contribution of radiation to total heat transfer was about 13% and 18% for the operating temperatures of 400℃ and 600℃, respectively.
Keywords: Fluidized Bed; Radiative Heat Transfer; Bed Emissivity
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[Cited By]
  1. Lee CG, Kim JS, Song PS, Choi GS, Kang Y, Choi MJ, Korean Journal of Chemical Engineering, 20(1), 133, 2003
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