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    Modeling of Heating and Evaporation of FACE I Gasoline Fuel and its Surrogates

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    Type
    Conference Paper
    Authors
    Elwardani, Ahmed Elsaid cc
    Badra, Jihad cc
    Sim, Jaeheon cc
    Khurshid, Muneeb
    Sarathy, Mani cc
    Im, Hong G. cc
    KAUST Department
    Chemical Engineering Program
    Clean Combustion Research Center
    Combustion and Pyrolysis Chemistry (CPC) Group
    Computational Reacting Flow Laboratory (CRFL)
    Mechanical Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2016-04-05
    Permanent link to this record
    http://hdl.handle.net/10754/618131
    
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    Abstract
    The US Department of Energy has formulated different gasoline fuels called ''Fuels for Advanced Combustion Engines (FACE)'' to standardize their compositions. FACE I is a low octane number gasoline fuel with research octane number (RON) of approximately 70. The detailed hydrocarbon analysis (DHA) of FACE I shows that it contains 33 components. This large number of components cannot be handled in fuel spray simulation where thousands of droplets are directly injected in combustion chamber. These droplets are to be heated, broken-up, collided and evaporated simultaneously. Heating and evaporation of single droplet FACE I fuel was investigated. The heating and evaporation model accounts for the effects of finite thermal conductivity, finite liquid diffusivity and recirculation inside the droplet, referred to as the effective thermal conductivity/effective diffusivity (ETC/ED) model. The temporal variations of the liquid mass fractions of the droplet components were used to characterize the evaporation process. Components with similar evaporation characteristics were merged together. A representative component was initially chosen based on the highest initial mass fraction. Three 6 components surrogates, Surrogate 1-3, that match evaporation characteristics of FACE I have been formulated without keeping same mass fractions of different hydrocarbon types. Another two surrogates (Surrogate 4 and 5) were considered keeping same hydrocarbon type concentrations. A distillation based surrogate that matches measured distillation profile was proposed. The calculated molar mass, hydrogen-to-carbon (H/C) ratio and RON of Surrogate 4 and distillation based one are close to those of FACE I.
    Citation
    Elwardany, A., Badra, J., Sim, J., Khurshid, M. et al., "Modeling of Heating and Evaporation of FACE I Gasoline Fuel and its Surrogates," SAE Technical Paper 2016-01-0878, 2016, doi:10.4271/2016-01-0878.
    Sponsors
    Research reported in this publication was supported by King Abdullah University of Science and Technology (KAUST) and Saudi Aramco under the FUELCOM program.
    Publisher
    SAE International
    Journal
    SAE Technical Paper Series
    Conference/Event name
    SAE 2016 World Congress and Exhibition
    DOI
    10.4271/2016-01-0878
    Additional Links
    http://papers.sae.org/2016-01-0878/
    ae974a485f413a2113503eed53cd6c53
    10.4271/2016-01-0878
    Scopus Count
    Collections
    Conference Papers; Physical Science and Engineering (PSE) Division; Chemical Engineering Program; Mechanical Engineering Program; Clean Combustion Research Center

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