This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Numerical Simulation of Evaporating Sprays of Ethanol Fuel Blends
Technical Paper
2013-01-2552
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
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.
Recommended Content
Authors
Topic
Citation
Kobashi, Y., Kimoto, Y., and Kato, S., "Numerical Simulation of Evaporating Sprays of Ethanol Fuel Blends," SAE Technical Paper 2013-01-2552, 2013, https://doi.org/10.4271/2013-01-2552.Also In
References
- Poling , B. E. , Prauszitz , J. M. and O'connell , J. P. The Properties of Gases and Liquids Fifth McGraw-Hill 2000
- Kawano , D. , Senda , J. , Wada , Y. , Fujimoto , H. et al. Numerical Simulation of Multicomponent Fuel Spray SAE Technical Paper 2003-01-1838 2003 10.4271/2003-01-1838
- Kobashi , Y. , Fujimori , K. , Maekawa , H. , Kato , S. et al. Modeling of Auto-Ignition and Combustion Processes for Dual-Component Fuel Spray SAE Int. J. Engines 4 2 2193 2206 2011 10.4271/2011-24-0001
- Kobashi , Y. , Maekawa , H. , Kato , S. , and Senda , J. Simultaneous Reduction of Pressure Rise Rate and Emissions in a Compression Ignition Engine by Use of Dual-Component Fuel Spray SAE Int. J. Fuels Lubr. 5 3 1404 1413 2012 10.4271/2012-32-0031
- Amsden , A. A. KIVA3V: A Block-Structured KIVA Program for Engines with Vertical or Canted Valves Los Alamos National Laboratory Report LA-13313-MS 1997
- Ely , J. F. and Huber , M. L. NIST Thermophysical Properties of Hydrocarbon Mixtures Database User's Guide 1992
- Abramzon , B. and Sirignano , W. A. Droplet Vaporization Model for Spray Combustion Calculations Int. J. Heat Mass Transfer 32 9 1605 1618 1989
- Curtis , E. , Uludogan , A. , and Reitz , R. A New High Pressure Droplet Vaporization Model for Diesel Engine Modeling SAE Technical Paper 952431 1995 10.4271/952431
- Holderbaum , T. and Gmehling J. PSRK: A Group Contribution Equation of State Based on UNIFAC Fluid Phase Equilibria 70 2-3 251 265 1991
- Horstmann , S. , Fischer , K. and Gmehling , J. PSRK Group Contribution Equation of State: Revision and Extension III Fluid Phase Equilibria 167 2 173 186 2000
- Barro , C. , Rogalski , M. and PĂ©neloux , A. A New Ebulliometric Technique. Vapour-Liquid Equilibria in the Binary Systems Ethanol-n-Heptane and Ethanol-n-Nonane Fluid Phase Equilibria 8 1 55 73 1982
- Janaszewski , B. , Oracz , P. , Goral , M. and Warycha , S. Vapour-Liquid Equilibria. I. An Apparatus for Isothermal Total Vapour Pressure Measurements: Binary Mixtures of Ethanol and t-Butanol with n-hexane, n-heptane and n-octane at 313.15K Fluid Phase Equilibria 9 3 295 310 1982
- Kogan , V. B. , Fridman , V. M. and Kafarov , V. V. Kiekiheikou Data book Kodansha Hirata Mitsuho 596 598 1974
- Kar , K. , Last , T. , Haywood , C. , and Raine , R. Measurement of Vapor Pressures and Enthalpies of Vaporization of Gasoline and Ethanol Blends and Their Effects on Mixture Preparation in an SI Engine SAE Int. J. Fuels Lubr. 1 1 132 144 2008 10.4271/2008-01-0317
- Neroorkar , K. and Schmidt , D. Modeling of Vapor-Liquid Equilibrium of Gasoline-Ethanol Blended Fuels for Flash Boiling Simulations Fuel 90 2 665 673 2011
- Beale , J. C. and Reitz , R. D. Modeling Spray Atomization with the Kelvin-Helmholtz/Rayleigh-Taylor Hybrid Model Atomization and Sprays 9 623 650 1999