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dc.contributor.authorKHALED, Fethi
dc.contributor.authorBadra, Jihad
dc.contributor.authorFarooq, Aamir
dc.date.accessioned2017-10-03T12:49:37Z
dc.date.available2017-10-03T12:49:37Z
dc.date.issued2017-08-17
dc.identifier.citationKhaled F, Badra J, Farooq A (2017) Ignition delay time correlation of fuel blends based on Livengood-Wu description. Fuel 209: 776–786. Available: http://dx.doi.org/10.1016/j.fuel.2017.07.095.
dc.identifier.issn0016-2361
dc.identifier.doi10.1016/j.fuel.2017.07.095
dc.identifier.urihttp://hdl.handle.net/10754/625741
dc.description.abstractIn this work, a universal methodology for ignition delay time (IDT) correlation of multicomponent fuel mixtures is reported. The method is applicable over wide ranges of temperatures, pressures, and equivalence ratios. n-Heptane, iso-octane, toluene, ethanol and their blends are investigated in this study because of their relevance to gasoline surrogate formulation. The proposed methodology combines benefits from the Livengood-Wu integral, the cool flame characteristics and the Arrhenius behavior of the high-temperature ignition delay time to suggest a simple and comprehensive formulation for correlating the ignition delay times of pure components and blends. The IDTs of fuel blends usually have complex dependences on temperature, pressure, equivalence ratio and composition of the blend. The Livengood-Wu integral is applied here to relate the NTC region and the cool flame phenomenon. The integral is further extended to obtain a relation between the IDTs of fuel blends and pure components. Ignition delay times calculated using the proposed methodology are in excellent agreement with those simulated using a detailed chemical kinetic model for n-heptane, iso-octane, toluene, ethanol and blends of these components. Finally, very good agreement is also observed for combustion phasing in homogeneous charge compression ignition (HCCI) predictions between simulations performed with detailed chemistry and calculations using the developed ignition delay correlation.
dc.description.sponsorshipWork reported in this publication was funded by Saudi Aramco under the FUELCOM program and by King Abdullah University of Science and Technology (KAUST).
dc.publisherElsevier BV
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S0016236117309572
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Fuel. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Fuel, [, , (2017-08-17)] DOI: 10.1016/j.fuel.2017.07.095 . © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectIgnition delay times
dc.subjectAutoignition
dc.subjectCombustion
dc.titleIgnition delay time correlation of fuel blends based on Livengood-Wu description
dc.typeArticle
dc.contributor.departmentChemical Kinetics & Laser Sensors Laboratory
dc.contributor.departmentClean Combustion Research Center
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalFuel
dc.eprint.versionPost-print
dc.contributor.institutionFuel Technology Division, R&D Center, Saudi Aramco, Dhahran, Saudi Arabia
kaust.personKhaled, Fathi
kaust.personFarooq, Aamir
refterms.dateFOA2019-08-17T00:00:00Z
dc.date.published-online2017-08-17
dc.date.published-print2017-12


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