Numerical simulation of evaporating sprays of ethanol fuel blends

Yoshimitsu Kobashi, Yusuke Kimoto, Satoshi Kato

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


Ethanol is a promising alternative to fossil fuels because it can be produced from biomass resources that are renewable. Due to the amount of production, however, the usage would be limited to blends with other conventional fuels. Ethanol-fuel blends are azeotropic and have unique vaporization characteristics different from blends composed of aliphatic hydrocarbons, so that the present study developed a numerical scheme which takes into account the vapor-liquid equilibrium of azeotrope in order to update the author's original version of the multi-component fuel CFD model and to evaluate the effect of mixing ethanol into gasoline on the evaporation process. The numerical simulation was implemented for evaporating sprays of ethanol-n-heptane blends, which are injected through a single hole nozzle. In addition to the vapor-liquid equilibrium, the effect of the latent heat of vaporization was investigated. The result clearly shows the effect of azeotropic phenomenon on the evaporation process while indicating that the latent heat of vaporization plays more significant role on the evaporation for the case of higher mixing fraction of ethanol.

Original languageEnglish
JournalSAE Technical Papers
Publication statusPublished - 2013
Externally publishedYes
EventSAE/KSAE 2013 International Powertrains, Fuels and Lubricants Meeting, FFL 2013 - Seoul, Korea, Republic of
Duration: Oct 21 2013Oct 23 2013

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering


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