THE EFFECT OF THE MICROSTRUCTURE OF AIR-ADMITTED HEAT EXCHANGERS ON CAPACITY AND PRESSURE LOSS UNDER SERVICE CONDITIONS WITHOUT CONDENSATE PRECIPITATION.

[In German. / En allemand.]

Author(s) : DOLZ H.

Type of article: Article

Summary

ATTEMPTS HAVE BEEN MADE TO OPTIMISE EVEN THE OUTER APPEARANCE OF THE PIPE SURFACE ENLARGED BY FINS SO AS TO ACHIEVE A MAXIMUM TRANSFER RATE AT A POSSIBLY LOW PRESSURE LOSS. A DESCRIPTION IS GIVEN OF A FIELD-ORIENTED STUDY OF MICROSTRUCTURES OF THIS HEAT EXCHANGER, ESPECIALLY OF PARTICULAR DESIGNS OF FINS LIKE EMBOSSMENTS, PUNCH-OUTS AND SLOTS. THE TEST UNITS WERE COPPER/ALUMINIUM HEAT EXCHANGERS WITH STAGGERED PIPE ARRANGEMENT AND 2 MM FIN SPACING. THE HIGHEST HEAT TRANSFER RATES WERE OBTAINED WITH SLOTTED AND WAVY FINS.

Details

  • Original title: [In German. / En allemand.]
  • Record ID : 1985-1008
  • Languages: German
  • Publication date: 1984
  • Source: Source: Luft K√§ltetech.
    vol. 20; n. 4; 203-207; 11 fig.; 1 tabl.; 8 ref.
  • Document available for consultation in the library of the IIR headquarters only.