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A numerical study of ethanol-water droplet evaporation
KTH, School of Engineering Sciences (SCI), Mechanics.
KTH, School of Engineering Sciences (SCI), Mechanics.ORCID iD: 0000-0001-5886-415X
2017 (English)In: Proceedings of the ASME Turbo Expo, American Society of Mechanical Engineers (ASME) , 2017Conference paper, Published paper (Refereed)
Abstract [en]

The present effort focuses on detailed numerical modelling of the evaporation of an ethanol-water droplet. The model intends to capture all relevant details of the process: it includes species and heat transport in the liquid and gas phases, and detailed thermo-physical and transport properties, varying with both temperature and composition. Special attention is reserved to the composition range near and below the ethanol/water azeotrope point at ambient pressure. For this case, a significant fraction of the droplet lifetime exhibits evaporation dynamics similar to those of a pure droplet. The results are analysed and model simplifications are examined. In particular, the assumptions of constant liquid properties, homogeneous liquid phase composition and no differential volatility may not be valid depending on the initial droplet temperature.

Place, publisher, year, edition, pages
American Society of Mechanical Engineers (ASME) , 2017.
Keyword [en]
Biofuel, Droplet, Multicomponent evaporation, Spray combustion, Alternative fuels, Biofuels, Coal combustion, Combustion, Ethanol, Evaporation, Liquids, Rankine cycle, Turbomachinery, Composition ranges, Droplet temperature, Ethanol/water azeotrope, Homogeneous liquids, Liquid and gas phasis, Model simplification, Multicomponents, Drops
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-216572DOI: 10.1115/GT2017-64420ISI: 000412719000006Scopus ID: 2-s2.0-85028961841ISBN: 9780791850831 OAI: oai:DiVA.org:kth-216572DiVA, id: diva2:1154135
Conference
ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition, GT 2017, 26 June 2017 through 30 June 2017
Note

QC 20171101

Available from: 2017-11-01 Created: 2017-11-01 Last updated: 2017-11-01Bibliographically approved

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Lupo, GiandomenicoDuwig, Christophe

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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  • text
  • asciidoc
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