Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Numerical analysis of fluid flow and thermal fields in the vertical fluidized bed heat exchanger

수직형 순환유동층 열교환기에서의 유체유동과 온도장의 수치해석

  • Lee, B.C. (Hyosung Power & Industrial Systems Performance Group) ;
  • Kang, H.K. (Convergence Technology Research, Korean Register) ;
  • Lee, M.S. (Department of Mechanical Engineering, Gyeongsang National University) ;
  • Ahn, S.W. (Department of Mechanical Engineering, Gyeongsang National University)
  • 이병창 (효성중공업 일반변압기설계팀) ;
  • 강호근 (선급협회 기술연구소) ;
  • 이명성 (경상대학교 기계시스템공학과) ;
  • 안수환 (경상대학교 해양산업연구소 기계시스템공학과)
  • Received : 2012.01.09
  • Accepted : 2012.05.30
  • Published : 2012.08.31
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Abstract

The numerical analysis by using CFX 11.0 commercial code was done for prediction of fluid flow and thermal field in the vertical heat exchanger. The present experimental studies were also conducted to investigate the effects of circulating solid particles on the fluid flow and temperatures in the fluidized bed vertical shell and tube type heat exchanger with counterflow, at which the solid particles of glasses (3 $mm{\Phi}$) were used in the fluidized bed with a smooth tube. The effect of circulation on the distance(L) of tube inlet and baffle plate was also examined. The present experimental and numerical results showed that the particles in the distance (Ds) of 15 mm showed a more efficient circulation without stacked the space and the LMTD(Log Mean Temperature Difference) in the fluidized bed type was much lower than that in the typical type shell and tube heat exchanger.

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References

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