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Thermal Sciences 2000. Proceedings of the International Thermal Science Seminar. Volume 2
June, 11-14, 2000, Bled, Slovenia

DOI: 10.1615/ICHMT.2000.TherSieProcVol2


ISBN Print: 978-961-6353-27-4

Abstract of "MEASUREMENT OF CERTAIN PARAMETERS INFLUENCING ACTIVITY OF NUCLEATION SITES IN POOL BOILING"

page 129
DOI: 10.1615/ICHMT.2000.TherSieProcVol2.500
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RÉSUMÉ

The influence of decreasing the distance between artificially activated nucleation sites and a naturally activated nucleation site on their activity was studied. A naturally activated nucleation site was activated during saturated water pool boiling at atmospheric pressure using electrical or laser heating of a relatively large surface of 25 μm copper or titanium foil. The interaction between nucleation sites located at various distances was observed during their simultaneous activation with a laser heated spot, which could be moved along the surface. The results of measurements indicate that the influences of active nucleation sites on each other's activity are mutual. Moving a laser heated spot along the surface was used to show the influence of location on the activity of nucleation sites.

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