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231225s2018 xx |||||o 00| ||eng c |
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|a 10.2175/106143017X15131012152816
|2 doi
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|a pubmed25n0939.xml
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|a eng
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| 100 |
1 |
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|a Matias, Natércia
|e verfasserin
|4 aut
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| 245 |
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|a Liquid-Gas Mass Transfer of Volatile Substances in an Energy Dissipating Structure
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 03.05.2018
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|a Date Revised 03.05.2018
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|a published: Print
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|a Citation Status MEDLINE
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|a Mass transfer of a range of volatile substances was studied under highly turbulent conditions. The applied setup mimicked drop structures, where the release of volatile organic carbons likely occurs at a high rate. The experiments covered several substances in a range of resistances from residing entirely in the liquid film to being fully in the gas film. The two-film theory yielded a good prediction of the whole measured range. This allowed the experimental validation of a method where two reference substances are applied, to determine the transfer of any other substance - independently of where its resistance to mass transfer resides. One finding was that the range of dimensionless Henry's constants, where both films contributed by more than 5%, was 0.0027 to 1.05, which is over five times higher than the accepted rule of thumb (0.0005-0.18). Another finding was that the ratio between the liquid and the gas film mass transfer coefficients of the reference substances was similar for the two drop configurations studied. If this holds true over a wider range of configurations, such a ratio constitutes a valuable shortcut to the current practice of ignoring gas film resistance in the estimation of mass transfer rates
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|a Journal Article
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|a Gases
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|a Water
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|a 059QF0KO0R
|2 NLM
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| 700 |
1 |
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|a Ferreira, Filipa
|e verfasserin
|4 aut
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|a Matos, José Saldanha
|e verfasserin
|4 aut
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|a Nielsen, Asbjørn Haaning
|e verfasserin
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|a Vollertsen, Jes
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Water environment research : a research publication of the Water Environment Federation
|d 1998
|g 90(2018), 3 vom: 01. März, Seite 269-277
|w (DE-627)NLM098214292
|x 1061-4303
|7 nnns
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| 773 |
1 |
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|g volume:90
|g year:2018
|g number:3
|g day:01
|g month:03
|g pages:269-277
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|u http://dx.doi.org/10.2175/106143017X15131012152816
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