Enhancement of the critical heat flux in saturated pool boiling using honeycomb porous media

Shoji Mori, Kunito Okuyama

研究成果: Contribution to journalArticle査読

95 被引用数 (Scopus)

抄録

Enhancement of the critical heat flux in pool boiling by the attachment of a honeycomb-structured porous plate on a heated surface is investigated experimentally using water under saturated boiling conditions. As the height of the honeycomb porous plate on the heated surface decreases, the CHF increases to 2.5 MW/m2, which is approximately 2.5 times that of a plain surface (1.0 MW/m2). Automatic liquid supply due to capillary action and reduction of the flow resistance for vapor escape due to the separation of liquid and vapor flow paths by the honeycomb-structure are verified to play an important role in the enhancement of the CHF. A simplified one-dimensional model for the capillary suction limit, in which the pressure drops due to liquid and vapor flow in the honeycomb porous plate balances the capillary force, is applied to predict the CHF. The calculated results are compared with the measured results.

本文言語英語
ページ(範囲)946-951
ページ数6
ジャーナルInternational Journal of Multiphase Flow
35
10
DOI
出版ステータス出版済み - 10 2009
外部発表はい

All Science Journal Classification (ASJC) codes

  • 機械工学
  • 物理学および天文学(全般)
  • 流体および伝熱

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