Share

IIR document

TURBULENT HEAT TRANSFER TO SUPERCRITICAL HELIUM: A NUMERICAL STUDY.

Author(s) : CORNELISSEN M. C. M., HOOGENDOORN C. J.

Summary

TURBULENT HEAT TRANSFER TO HELIUM, STUDIED NUMERICALLY, SHOWS GOOD AGREEMENT WITH TEST DATA. THE AGREEMENT IS SATISFACTORY FOR LOW THERMAL FLOWS BUT MARKEDLY WORSE FOR HIGH FLOWS. NUSSELT CORRELATION, FREQUENTLY USED FOR HEAT TRANSFER TO SUPERCRITICAL HELIUM, IS NOT SUITABLE NEAR THE CRITICAL POINT. IN THIS CASE THE EFFECTIVE VALUES MAY BE ONLY 20% OF THOSE GIVEN BY THE CORRELATION. THE STUDY SHOWS THE EFFECTS OF THE PROXIMITY OF THE CRITICAL POINT WHICH ARE SIMILAR TO THE BEHAVIOUR OF OTHER LIQUIDS. THE SUDDEN DROP OF WALL TEMPERATURE IN THE CASE OF HIGH HEAT FLOWS AT THE POINT WHERE THE BULK TEMPERATURE REACHES THE PSEUDOCRITICAL VALUE SEEMS TO BE DUE TO RADIAL ENTHALPY DISTRIBUTION. THE RESULTING CHANGES IN LIQUID DENSITY AND ACCELERATION ARE ALSO NOTED.

Available documents

Format PDF

Pages: 215-220

This document is to be digitised and will be available within 10 working days

  • Public price

    20 €

  • Member price*

    Free

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

Details

  • Original title: TURBULENT HEAT TRANSFER TO SUPERCRITICAL HELIUM: A NUMERICAL STUDY.
  • Record ID : 1985-0503
  • Languages: English
  • Source: [Refrigeration serving humanity]. Proceedings of the XVIth international Congress of Refrigeration.
  • Publication date: 1983/08/07
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles from the proceedings (541)
See the conference proceedings

Indexing