Assessment of disparate strategies for octane prediction

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dc.contributor.advisorMöller, Klausen_ZA
dc.contributor.advisorYates, Andrewen_ZA
dc.contributor.authorViljoen, Carlen_ZA
dc.date.accessioned2015-05-13T14:17:35Z
dc.date.available2015-05-13T14:17:35Z
dc.date.issued2009en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractOctane quality is a key factor in determining the profitability in a modern refinery. The final commercial product is defined by the combined blend of various gasoline component streams which are produced from different units within the refinery. The accurate prediction of the octane numbers of these blends enables the economic optimization of the production process. Currently, empirical octane models are used exclusively for this purpose. Octane is a measure of the spontaneous autoignition propensity of a fuel-air mixture and it is quantified using a specific engine-based test method. This research project was founded on the premise that an improved octane prediction model could be harvested from building blocks that included a fundamental understanding of autoignition, appropriate choices of autoignition models and an engine model. This objective was pursued in this work by investigating detailed and reduced kinetic mechanisms for the oxidation of selected fuel molecules using various modeling techniques. Empirical octane models and semi-chemical models of autoignition were also investigated. All of these methodologies were assessed as possible strategies towards octane prediction. In this study it was observed that both detailed and highly reduced kinetic models could describe the oxidation behaviour of pure fuel components and predict their subsequent ignition delays.en_ZA
dc.identifier.apacitationViljoen, C. (2009). <i>Assessment of disparate strategies for octane prediction</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering. Retrieved from http://hdl.handle.net/11427/12791en_ZA
dc.identifier.chicagocitationViljoen, Carl. <i>"Assessment of disparate strategies for octane prediction."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 2009. http://hdl.handle.net/11427/12791en_ZA
dc.identifier.citationViljoen, C. 2009. Assessment of disparate strategies for octane prediction. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Viljoen, Carl AB - Octane quality is a key factor in determining the profitability in a modern refinery. The final commercial product is defined by the combined blend of various gasoline component streams which are produced from different units within the refinery. The accurate prediction of the octane numbers of these blends enables the economic optimization of the production process. Currently, empirical octane models are used exclusively for this purpose. Octane is a measure of the spontaneous autoignition propensity of a fuel-air mixture and it is quantified using a specific engine-based test method. This research project was founded on the premise that an improved octane prediction model could be harvested from building blocks that included a fundamental understanding of autoignition, appropriate choices of autoignition models and an engine model. This objective was pursued in this work by investigating detailed and reduced kinetic mechanisms for the oxidation of selected fuel molecules using various modeling techniques. Empirical octane models and semi-chemical models of autoignition were also investigated. All of these methodologies were assessed as possible strategies towards octane prediction. In this study it was observed that both detailed and highly reduced kinetic models could describe the oxidation behaviour of pure fuel components and predict their subsequent ignition delays. DA - 2009 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2009 T1 - Assessment of disparate strategies for octane prediction TI - Assessment of disparate strategies for octane prediction UR - http://hdl.handle.net/11427/12791 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/12791
dc.identifier.vancouvercitationViljoen C. Assessment of disparate strategies for octane prediction. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 2009 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/12791en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Chemical Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherChemical Engineeringen_ZA
dc.titleAssessment of disparate strategies for octane predictionen_ZA
dc.typeDoctoral Thesis
dc.type.qualificationlevelDoctoral
dc.type.qualificationnamePhDen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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