Share

IIR document

Research on heat transfer and flow characteristics of corrugated tubes.

Author(s) : JI C., HOU L. J., WANG M.

Summary

Pointing at the special characteristics of flow field in corrugated tubes, a numerical simulation was performed by using the RNG k-epsilon turbulence model for three-dimensional fluid and the boundary condition of constant wall temperature in the tubes. The characteristics of turbulent flow and heat transfer in corrugated tubes of the diameter 16 mm and the length 740 mm were studied, with water at constant temperature as the medium and in different conditions of the velocity of flow at 0.5, 0.8 and 1.2 m/s. The temperature, velocity distribution, pressure value, turbulence intensity and the Nu number at different sections for fully developed fluid were obtained, which were compared with the results of smooth tubes. The numerical results showed that the quantity of heat transfer increased with the increase of the velocity of flow and the effect of turbulent enhanced heat transfer strengthened. It was found that the corrugated tubes can significantly enhance the heat transfer under the same diameter condition.

Available documents

Format PDF

Pages: ICR07-B2-443

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Research on heat transfer and flow characteristics of corrugated tubes.
  • Record ID : 2008-0085
  • Languages: English
  • Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
  • Publication date: 2007/08/21

Links


See other articles from the proceedings (839)
See the conference proceedings

Indexing