A Study on Prediction Model of Flow and Heat Transfer in the Circulating Fluidized Bed Heat Exchanger with Multiple Vertical Tubes

다관형 순환유동층 열교환기의 유동 및 전열성능 예측모텔 연구

  • Park, Sang-Il (High Efficiency Energy Research Div., Korea Institute of Energy Research)
  • 박상일 (한국에너지기술연구원 고효율에너지연구부)
  • Published : 2007.03.10

Abstract

The pressure drop and heat transfer coefficient were measured at room temperature in a CFB heat exchanger with multiple vertical tubes. The circulation rate of solid particles was also measured. The theoretical model for predicting heat transfer coefficient using the solid flowrate was developed in this study. The model predictions were compared with the measured heat transfer coefficient to show relatively good agreement.

Keywords

References

  1. Roh, S. L. and Park, S. I., 2003, Development of the heat exchanger for incinerator flue gas heat recovery and fouling control, 8th Energy Conservation Technology Workshop, Daejeon, pp. 39-47
  2. Mickley, H. S. and Fairbanks, D. F., 1955, Mechanism of heat transfer to fluidized beds, AIChE Journal, Vol.1, No.3, pp.374-384 https://doi.org/10.1002/aic.690010317
  3. Lints, M. and Glicksman, L. R., 1993, The structure of particle clusters near the wall of a circulating fluidized bed, AIChE Symposium Series, Vol. 89, No. 296, pp. 35-47
  4. Gelperin, N. I. and Einstein, V. G., 1971, Heat transfer in fluidized beds, Chapter 10 in Fluidization (eds Davidson, J. F. and Harrison, D.), Academic Press, New York, p.471
  5. Glicksman, L. R., 1988, Circulating fluidized bed heat transfer, in circulating fluidized bed technology II, Basu, P. and Large, J. F., eds., Pergamon Press, Oxford, pp. 13-30
  6. Nusselt, W., 1931, Der Warmeaustausch zwischen wand und wasser in rohr, Forsch. Geb. Ingenieurwes, Vol. 2, p. 309 https://doi.org/10.1007/BF02583210