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CONTINUOUS CLEANING OF HEAT EXCHANGER WITH RECIRCULATING FLUIDIZED BED.

Author(s) : KOLLBACH J. S., DAHM W., RAUTENBACH R.

Type of article: Article

Summary

THE AUTHORS DISCUSS THE MERITS OF USING A FLUIDIZED BED TECHNIQUE WITHIN THE TUBES OF A SHELL AND TUBE HEAT EXCHANGER. THE TECHNIQUE CAN INCREASE THE HEAT TRANSFER COEFFICIENT BY UP TO A FACTOR OF 8, AND IN CASES WHERE TUBE FOULING OR SCALING IS A PROBLEM, THIS CANOFTEN BE ERADICATED OR KEPT TO TOLERABLE LEVELS. FLUIDIZED PARTICLES OF GLASS, METAL OR CERAMICS CAN BE USED. THE UNIT PRESSURE DROP MAY BE NO MORE THAN THAT WITH NO FLUIDIZING BECAUSE FLUID VELOCITIES THROUGH THE BED ARE GENERALLY REDUCED TO BELOW 1,0 M/SEC. EXIT SEPARATION AND INLET PARTICLE ESCAPE ARE DISCUSSED, AND TEST DATA FOR HEAT TRANSFER COEFFICIENTS IS GIVEN. D.W.H.

Details

  • Original title: CONTINUOUS CLEANING OF HEAT EXCHANGER WITH RECIRCULATING FLUIDIZED BED.
  • Record ID : 1988-1395
  • Languages: English
  • Source: Heat Transf. Eng. - vol. 8 - n. 4
  • Publication date: 1987
  • Document available for consultation in the library of the IIR headquarters only.

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