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IIR document

Studies on coiled wire finned heat exchangers operating with wide boiling mixtures.

Number: pap. n. 139

Author(s) : HARISH KRUTHIVENTI S. S., VENKATARATHNAM G.

Summary

Heat exchanger effectiveness of more than 90% is required for a J-T refrigerator to function when nitrogen is used as the refrigerant and over 95% when mixtures are used as the refrigerant. Coiled wire finned heat exchangers with effectiveness greater than 97% have been built and tested in our laboratory for use in J-T refrigerators operating with mixtures. Experiments have been conducted on prototype heat exchanger with a nitrogen-hydrocarbon mixture and temperature of the shell measured at some locations. The measured temperatures are compared with some single and two-phase heat transfer coefficient estimation methods available in the literature.

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Pages: 5 p.

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Details

  • Original title: Studies on coiled wire finned heat exchangers operating with wide boiling mixtures.
  • Record ID : 30015276
  • Languages: English
  • Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
  • Publication date: 2015/08/16
  • DOI: http://dx.doi.org/10.18462/iir.icr.2015.0139

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