Bulletin of JSME
Online ISSN : 1881-1426
Print ISSN : 0021-3764
Maximum Heat Fluxes for Pool Boiling on Partly Ill-Wettable Heating Surfaces : (Part 2, Mainly on the Nucleate Boiling Having Tolerably High Superheat)
Shu HASEGAWARyozo ECHIGOToshiyuki TAKEGAWA
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1973 Volume 16 Issue 97 Pages 1076-1084

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Abstract
Some experimental studies for examining the maximum heat fluxes in pool boiling of saturated water on partly ill-wettable heating surface are continued. Ill-wettable parts are realized by putting thin layers of silastic adhesive. In the previous report, experiments were carried out varying the width of such a region but in this report the test section has two parallel ill-wettable parts and the distance between these two parts is varied in order to examine their interference. In this case as the heat removal rates change locally, there exists a considerable temperature distribution along the heating surface. Especially in the normal part between two ill-wettable regions nucleate boiling having tolerably high superheat occurs. Such a boiling is examined by measuring the surface temperature, heat transfer coefficient and average void fraction.
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© The Japan Society of Mechanical Engineers
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