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Heat transfer performance of a double-pipe evaporator with smooth and corrugated tubes. Experimental study and modelling.

Performance d'évaporateurs à tubes coaxiaux, de types lisses ou corrugués. Etude expérimentale et modélisation.

Author(s) : COULIBALY D.

Type of monograph: Doctoral thesis

Summary

Multi-tube exchangers, consisting of nine bare (7 m length) or corrugated (5 m length) tubes placed inside a tube envelope. The water circulates outside the counterflow bundle of tubes, with R22 circulating inside the tubes. The enhancement due to corrugated tubes is noticeable, as their exchanging surface is 76% of that of the bare tubes. More important pressures losses remain less than 0.5 bar for operating conditions with water. The pressure losses on R22 are on average 0.2 bar inside bare tubes, and 0.35 bar for corrugated tubes. A model is set up.

Details

  • Original title: Performance d'évaporateurs à tubes coaxiaux, de types lisses ou corrugués. Etude expérimentale et modélisation.
  • Record ID : 1995-3470
  • Languages: French
  • Publication: France/France
  • Publication date: 1994/07
  • Source: Source: 94ISAL0054; 116 p.; 62 ref.

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