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Experimental study of electrohydrodynamically enhanced evaporator for non-azeotropic mixtures.

Author(s) : YABE A., TAKETANI T., MAKI H., TAKAHASHI K., NAKADAI Y.

Summary

To realize higher performance in heat pump systems utilizing non-azeotropic mixtures, an electrohydrodynamic evaporator has been studied. Conventional manufactured surfaces have not been effective for non-azeotropic mixtures because of the accumulation of the less evaporative component of the mixture around the heat transfer surface. By setting a perforated coaxial cylindrical electrode inside the 3.75-meter-long evaporator tube, the evaporative and boiling heat transfer of the non-azeotropic mixture of R123 and R134a on the inner surface of the tube has been enhanced by a factor of about 3 over a wide range of quality with the application of 7 kilovolts at an electrode distance of 2.5 millimeters.

Details

  • Original title: Experimental study of electrohydrodynamically enhanced evaporator for non-azeotropic mixtures.
  • Record ID : 1993-2555
  • 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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