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Analysis of hysteresis and polarity influence in nucleate pool boiling under DC electric field.

Author(s) : ZAGHDOUDI M. C., CIOULACHTJIAN S., BONJOUR J., LALLEMAND M.

Summary

An experimental study on the effect of a strong electric field on nucleate pool boiling is presented. The results show an enhancement of heat transfer and a disappearance of the hysteresis phenomenon. Mechanisms governing the hysteresis phenomenon in an uniform electric field are analyzed. The vanishing of the hysteresis phenomenon is due to a change in the liquid wettability. The effect of the electric field polarity is also described. It has been found that the heat transfer enhancement for a negative polarity is greater than the one for a positive polarity. This difference is due to the orientation and the strength of the electric forces which depend on the electric field polarity.

Details

  • Original title: Analysis of hysteresis and polarity influence in nucleate pool boiling under DC electric field.
  • Record ID : 1998-0157
  • Languages: English
  • Source: Proceedings of EUROTHERM Seminar n. 48. Pool boiling 2.
  • Publication date: 1996/09/18
  • Document available for consultation in the library of the IIR headquarters only.

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