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Correlation for flow boiling heat transfer in mini-channels.

Author(s) : ZHANG W., HIBIKI T., MISHIMA K.

Type of article: Article

Summary

In view of practical significance of a correlation of heat transfer coefficient in the aspects of such applications as engineering design and prediction, some efforts towards correlating flow boiling heat transfer coefficients for mini-channels have been made in the study. Based on analyses of existing experimental investigations of flow boiling, it was found that liquid-laminar and gas-turbulent flow is a common feature in many applications of mini-channels. Traditional heat transfer correlations for saturated flow boiling were developed for liquid-turbulent and gas-turbulent flow conditions and thus may not be suitable in principle to be used to predict heat transfer coefficients in mini-channels when flow conditions are liquid-laminar and gas-turbulent. A comparison of the newly developed correlation with various existing data for mini-channels shows a satisfactory agreement. In addition, an extensive comparison of existing general correlations with databases for mini-channels has also been made.

Details

  • Original title: Correlation for flow boiling heat transfer in mini-channels.
  • Record ID : 2005-0625
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 47 - n. 26
  • Publication date: 2004/12

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