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A general criterion for evaporative heat transfer in micro/minichannels.

Author(s) : LI W., WU Z.

Type of article: Article

Summary

This paper presents a general criterion to classify a channel as microchannel or macrochannel. Experimental results of saturated-flow boiling heat transfer in micro/minichannels for both multi- and single-channel configurations were obtained from the literature. The collected database contains 4228 data points, covering a wide range of working fluids, operational conditions, and different microchannel dimensions. Seven existing correlations were evaluated against the database to verify their respective accuracies. A combined non-dimensional number was introduced as the new conventional-to-micro/minichannel criterion. In addition, a generalized prediction method was proposed based on the new criterion, with accurate predictive capability. [Reprinted with permission from Elsevier. Copyright, 2009].

Details

  • Original title: A general criterion for evaporative heat transfer in micro/minichannels.
  • Record ID : 2010-1406
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 53 - n. 9-10
  • Publication date: 2010/04
  • DOI: http://dx.doi.org/10.1016/j.ijheatmasstransfer.2009.12.059

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