Effect of Solid Mass Inventory on Hydrodynamics Characteristics in a Circulating Fluidized Bed

순환유동층에서 유동매체량에 따른 수력학적 특성 연구

  • 김은경 (연세대학교 기계공학과) ;
  • 신동훈 (연세대학교 CT(Clean Tech.) 연구단) ;
  • 이종민 (한전 전력연구원 발전연구실) ;
  • 김재성 (한전 전력연구원 발전연구실) ;
  • 황정호 (연세대학교 기계공학과)
  • Published : 2002.12.31

Abstract

This paper discusses effect of solid mass inventory on the hydrodynamic characteristics of circulating fluidized bed(CFB). Operating parameters of solid mass inventory and air flow rates were varied to understand their effects on fludization pattern. Experimental measurements were made in a CFB of which height and diameter are 3m and 0.05m respectively. Black SiC particles ranging from $100{\mu}m\;to\;500{\mu}m$ were employed as the bed material. Superficial gas velocity of riser and J-valve fluidizing velocity were in the ranges of $1.39{\sim}3.24m/s\;and\;0.139{\sim}0.232m/s$, respectively. The axial solid fraction and solid circulation rate of CFB were calculated based on the experimental data and compared with modellings through IEA-CFBC Model and commercial CFD code.

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