International Journal of Air-Conditioning and Refrigeration

  • 제11권1호
  • /
  • Pages.24-31
  • /
  • 2003
  • /
  • 2010-1325(pISSN)
  • /
  • 2010-1333(eISSN)
대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
권호 표지

Heat Transfer Characteristics and Pressure Drop of a Fluidized Bed Heat Exchanger without Baffle Plate

  • Jun, Yong-Du (Division of Mechanical Engineering, Kongju National University) ;
  • Lee, Kum-Bae (Division of Mechanical Engineering, Kongju National University)
  • 발행 : 2003.03.01
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초록

A new fluidized bed heat exchanger for exhaust gas heat recovery is do-veloped. Compared to the existing ones, the present heat exchanger system is featured by the particle fluidization method which does not depend on conventionally used baffle plate with holes and by the multiple downcomer tubes to extract heat energy from hot particles during the time particles moves down to be fed again to the hot gas line. Particles are introduced to the main hot gas stream alongside the pipe circumference. The heat exchanger performance and pressure drop are evaluated through experiments for the present gas-to-water heat exchanger system.

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참고문헌

  1. Park, S. I., 1991, Heat transfer In counter-current gas-solid flow inside the vertical pipe, KSME journal, Vol. 5, No. 2, pp.125-129
  2. Park, J. H., Paek, S. W. and Kwon, S. J., 1998, Analysis of a gas particle direct-contact heat exchanger with two-phase radiation effect, KSME Journal, Vol. 22, No. 4, pp. 542-550
  3. Jung, K. H., Lee, K. B. and Jun, Y. D., 1999, Analysis of heat transfer coefficients and pressure drops in a multi-tube fluidized heat exchanger using solid particles, Proceedings of the SAREK'99 Winter Annual Conference, pp. 82-86
  4. Lee, K. B., Jun, Y. D. and Park, S. I., 1998, Measurement of heat transfer rates and pressure drops in a solid particle circulating fluidized heat exchanger, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 12, No. 9, pp. 817-824
  5. Jun, Y. D. and Lee, K. B., 2000, Flow and heat transfer analysis of particulate two-phase flow through a vertical pipe of finite length, Proceedings of the 4th JSME-KSME Thermal Engineering Conference, Vol. 3, pp.563-568
  6. KS A 0612, 1997, Measurement of fluid flowby means of orifice plates, nozzles and venturi tubes inserted in circular cross-section conduits running full
  7. Computational Dynamics Limited, 1998, STARCD User's Manual, Version 3.0
  8. Holman, J. P., 1976, Heat Transfer, 4th ed., pp. 395- 398
  9. Fox, R. W. and McDonald, A. T., 1994, Introduction to Fluid Mechanics, 4th ed., John Wiley & Sons, Inc., pp. 335-336