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Electrohydrodynamic enhancement of shell-side boiling heat transfer coefficients of R123-oil mixture.

Author(s) : OHADI M. M., PAPAR R. A., NG T. L., FAANI M. A., RADERMACHER R.

Summary

Results of an experimental study on electrohydrodynamic enhancement of nucleate pool boiling heat transfer of R123 on a tube are reported in the paper. Effects of surface heat flux, electric field voltage, and lubricant oil concentration on heat transfer enhancements are presented. For comparison purposes, experiments were also performed for R11 over the same range of parameters as those for R123. It is demonstrated that R123 has a much better response to the electrohydrodynamic enhancement mechanism. For the range of parameters investigated, up to 450% enhancement was obtained for R123, which compared with a corresponding 170% enhancement for R11. The lubricating oil has only a modest degrading effect on the electrohydrodynamic-enhanced heat transfer coefficients.

Details

  • Original title: Electrohydrodynamic enhancement of shell-side boiling heat transfer coefficients of R123-oil mixture.
  • Record ID : 1993-2553
  • Languages: English
  • Source: ASHRAE Transactions 1992. Part 2.
  • Publication date: 1992
  • Document available for consultation in the library of the IIR headquarters only.

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