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

Shoji Mori; Kunito Okuyama

doi:10.1299/kikaib.75.758_1896

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

Shoji Mori, Kunito Okuyama

Research output: Contribution to journal › Article

1 Citation (Scopus)

Abstract

The enhancement of the critical heat flux by the attachment of porous plates on the heated surface is investigated experimentally under the saturated pool boiling conditions. In the case that a honeycomb porous plate is applied, the CHF increases up to 2.51 MW/m², which is approximately 2.5 times that of a plain surface (1.01 MW/m²). It is found that the keys for the enhancement of the CHF are the automatic liquid supply due to capillary action and the reduction of the vapor counterflow resistance due to separation of liquid and vapor flow by the honeycomb porous structure. A simplified one-dimensional capillary-limit model, in which the pressure drop due to liquid and vapor flow is balanced by capillary force, is applied to predict the CHF. The calculated results are compared with the observed ones.

Original language	English
Pages (from-to)	1896-1902
Number of pages	7
Journal	Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume	75
Issue number	758
DOIs	https://doi.org/10.1299/kikaib.75.758_1896
Publication status	Published - Jan 1 2009
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanical Engineering

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Mori, S., & Okuyama, K. (2009). Enhancement of the critical heat flux in saturated pool boiling using honeycomb porous media. Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, 75(758), 1896-1902. https://doi.org/10.1299/kikaib.75.758_1896

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