Liquid Leaks: Dripping Versus Evaporation

Liquid leaks often reveal themselves as pendant drops or drips emanating from a low point on a fluid handling component. For volatile liquids, understanding the contributions of interfacial properties, such as diffusivity of the liquid and wettability of the solid, is crucial to determining leak rat...

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Bibliographic Details
Published inLangmuir Vol. 34; no. 40; pp. 12002 - 12006
Main Authors Extrand, C. W, Sekeroglu, Koray, Vangsgard, Kayla
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 09.10.2018
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Summary:Liquid leaks often reveal themselves as pendant drops or drips emanating from a low point on a fluid handling component. For volatile liquids, understanding the contributions of interfacial properties, such as diffusivity of the liquid and wettability of the solid, is crucial to determining leak rates. To estimate the resolution of hydrostatic leak testing, the competing factors of leak and evaporation rates were analyzed. We used drop volumes and contact angles along with intrinsic fluid properties to calculate the detection limit of hydrostatic leak tests. For water and ethanol, we reckon that it is approximately 10–4 to 10–5 cm3/s in dry air.
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ISSN:0743-7463
1520-5827
DOI:10.1021/acs.langmuir.8b02203