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Transition from nucleate boiling to convective boiling in compact heat exchangers.

Author(s) : THONON B., FELDMAN A., MARGAT L., MARVILLET C.

Type of article: Article, IJR article

Summary

Plate fin and corrugated heat exchangers have been studied (7 geometries). Controlling the flow parameters and the heat flux, and measuring the wall temperature have allowed to characterize the local heat transfer coefficient. The results clearly indicate that the dominant mechanism occurring could be nucleate or convective boiling. The transition between these two mechanisms depends on the flow characteristics but also on the channel geometry. Based on these measurements, an objective criterion can be established to identify the flow boiling regime. The knowledge of such a criterion is useful if the authors want to extend the use of compact heat exchanger to mixtures.

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Pages: 592-597

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Details

  • Original title: Transition from nucleate boiling to convective boiling in compact heat exchangers.
  • Record ID : 1998-2221
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 20 - n. 8
  • Publication date: 1997/12

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