Experimental study on characteristics of nucleate pool boiling by the effects of cavity arrangement

In this work, two patterns of cavity arrangement, inline pattern and triangular pattern, with various cavity spacing were experimental studied on a silicon heated surface with micro-machined triple artificial cavities at low heat flux range in pool boiling. It aims to investigate the effects of cavi...

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Bibliographic Details
Published in:Experimental thermal and fluid science 2004-12, Vol.29 (1), p.33-40
Main Authors: Chatpun, Surapong, Watanabe, Makoto, Shoji, Masahiro
Format: Article
Language:English
Subjects:
Bubble characteristics
Cavity arrangement
Heated surface
Nucleate pool boiling
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Summary:In this work, two patterns of cavity arrangement, inline pattern and triangular pattern, with various cavity spacing were experimental studied on a silicon heated surface with micro-machined triple artificial cavities at low heat flux range in pool boiling. It aims to investigate the effects of cavity arrangement on the characteristics of pool boiling. The results indicate that both cavity spacing and cavity pattern potentially influence nucleate pool boiling characteristics such as bubble departure frequency, bubble departure diameter and temperature distribution on heated surface. Furthermore, it revealed that inline pattern with the optimum cavity spacing without horizontal bubble coalescence can enhance a heat transfer characteristic better than triangular pattern at the same cavity spacing.
ISSN:0894-1777
1879-2286
DOI:10.1016/j.expthermflusci.2004.01.007