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    Ignition delay times of Gasoline Distillation Cuts measured with Ignition Quality Tester

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    ECM - 2017 - Ignition delay times of gasoline distillation cuts measured with ignition quality tester - Naser et al.pdf
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    Description:
    Conference Paper
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    Type
    Conference Paper
    Authors
    Naser, Nimal cc
    Singh, Eshan cc
    Ahmed, Ahfaz cc
    Sarathy, Mani cc
    KAUST Department
    Chemical Engineering Program
    Clean Combustion Research Center
    Combustion and Pyrolysis Chemistry (CPC) Group
    Mechanical Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2017-04-21
    Permanent link to this record
    http://hdl.handle.net/10754/627085
    
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    Abstract
    Tailoring fuel properties to maximize the efficiency of internal combustion engines is a way towards achieving cleaner combustion systems. In this work, the ignition properties of various gasoline fuel distillation cuts are analyzed to better understand fuel properties of the full boiling range fuel. An advanced distillation column (ADC) provides a more realistic representation of volatility characteristics, which can be modeled using equilibrium thermodynamic methods. The temperature reported is that of the liquid, as opposed to the vapor temperature in conventional ASTM D86 distillation standard. Various FACE (fuels for advanced combustion engines) gasolines were distilled and various cuts were obtained. The separated fractions were then tested in an ignition quality tester (IQT) to see the effect of chemical composition of different fractions on their ignition delay time. Fuels with lower aromatic content showed decreasing ignition delay time with increasing boiling point (i.e., molecular weight). However, fuels with higher aromatic content showed an initial decrease in ignition delay time with increasing boiling point, followed by drastic increase in ignition delay time due to fractions containing aromatics. This study also provides an understanding on contribution of different fractions to the ignition delay time of the fuel, which provides insights into fuel stratification utilized in gasoline compression ignition (GCI) engines to tailor heat release rates.
    Sponsors
    The authors wish to acknowledge the support of this work by Saudi Aramco under the FUELCOM program and the Clean Combustion Research Center (CCRC) at King Abdullah University of Science and Technology (KAUST).
    Publisher
    The Combustion Institute
    Journal
    Digital proceedings of the 8th European Combustion Meeting
    Conference/Event name
    European Combustion Meeting 2017
    Additional Links
    http://www.adriacombustioninstitute.org/ecm2017/index.php
    Collections
    Conference Papers; Physical Science and Engineering (PSE) Division; Chemical Engineering Program; Mechanical Engineering Program; Clean Combustion Research Center

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