Characterisation of the autoignition delay behaviour of n-heptane in the IQT combustion bomb using CFD modelling

 

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dc.contributor.advisor Swarts, André en_ZA
dc.contributor.advisor Yates, Andrew en_ZA
dc.contributor.advisor Meyer, Chris en_ZA
dc.contributor.author Metcalf, Owen J en_ZA
dc.date.accessioned 2014-07-31T11:19:33Z
dc.date.available 2014-07-31T11:19:33Z
dc.date.issued 2007 en_ZA
dc.identifier.citation Metcalf, O. 2007. Characterisation of the autoignition delay behaviour of n-heptane in the IQT combustion bomb using CFD modelling. University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/5503
dc.description Word processed copy.
dc.description Includes bibliographical references.
dc.description.abstract When n-heptane was tested in the IQT device over a range of temperatures and pressures, the measured autoignition delay did not correlate with the chemical autoignition delay associated with a stoichiometric, homogenous mixture as predicted by detailed chemical kinetic models. ... This project involved an investigation to study and reconcile this discrepancy, using computational fluid dynamic (CFD) techniques to explore the physical conditions prevailing in the IQT device. Specifically, CFD was used to model fuel injection into the IQT, this allowed a more accurate description of the fuel/air ratio and temperature history of the fuel inside the IQT combustion chamber than an assumption of global values. An empirical description of autoignition delay, developed by Yates et al. (2004), was then coupled to the CFD code: enabling the model to determine the progress of the fuel/air mixture to autoignition. en_ZA
dc.language.iso eng en_ZA
dc.subject.other Mechanical Engineering en_ZA
dc.title Characterisation of the autoignition delay behaviour of n-heptane in the IQT combustion bomb using CFD modelling en_ZA
dc.type Master Thesis
uct.type.publication Research en_ZA
uct.type.resource Thesis en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Engineering and the Built Environment
dc.publisher.department Department of Mechanical Engineering en_ZA
dc.type.qualificationlevel Masters
dc.type.qualificationname MSc en_ZA
uct.type.filetype Text
uct.type.filetype Image
dc.identifier.apacitation Metcalf, O. J. (2007). <i>Characterisation of the autoignition delay behaviour of n-heptane in the IQT combustion bomb using CFD modelling</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering. Retrieved from http://hdl.handle.net/11427/5503 en_ZA
dc.identifier.chicagocitation Metcalf, Owen J. <i>"Characterisation of the autoignition delay behaviour of n-heptane in the IQT combustion bomb using CFD modelling."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering, 2007. http://hdl.handle.net/11427/5503 en_ZA
dc.identifier.vancouvercitation Metcalf OJ. Characterisation of the autoignition delay behaviour of n-heptane in the IQT combustion bomb using CFD modelling. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering, 2007 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/5503 en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Metcalf, Owen J AB - When n-heptane was tested in the IQT device over a range of temperatures and pressures, the measured autoignition delay did not correlate with the chemical autoignition delay associated with a stoichiometric, homogenous mixture as predicted by detailed chemical kinetic models. ... This project involved an investigation to study and reconcile this discrepancy, using computational fluid dynamic (CFD) techniques to explore the physical conditions prevailing in the IQT device. Specifically, CFD was used to model fuel injection into the IQT, this allowed a more accurate description of the fuel/air ratio and temperature history of the fuel inside the IQT combustion chamber than an assumption of global values. An empirical description of autoignition delay, developed by Yates et al. (2004), was then coupled to the CFD code: enabling the model to determine the progress of the fuel/air mixture to autoignition. DA - 2007 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2007 T1 - Characterisation of the autoignition delay behaviour of n-heptane in the IQT combustion bomb using CFD modelling TI - Characterisation of the autoignition delay behaviour of n-heptane in the IQT combustion bomb using CFD modelling UR - http://hdl.handle.net/11427/5503 ER - en_ZA


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