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dc.contributorRodríguez Pérez, Ivette María
dc.contributorMira Martinez, Daniel
dc.contributor.authorForck, Jonathan
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics
dc.date.accessioned2021-06-08T07:45:13Z
dc.date.issued2021-05-14
dc.identifier.urihttp://hdl.handle.net/2117/346792
dc.description.abstractIn this thesis the results of mixing and combustion simulations with the premixed famelet method are presented and discussed. They were obtained by large-eddy simulations of a technically premixed swirl-stabilized hydrogen burner with axial air injection. The burner was developed by Reichel et al. [32, 33, 30, 31] to operate under lean conditions on highly reactive fuels such as hydrogen or syngas. The aim of the simulations was to improve the understanding of the flame stabilization mechanisms, while simulating the entire technical premixing process,which has not been done before. The investigation was therefore separated into a non-reacting and a reacting analysis. From the non-reacting analysis it became clear that the central axial velocity deficit could not be overcome over the entire length of the mixing tube. This led to vortex breakdown partially in the mixing tube, probably favoured by a fuel-rich central zone. The analysis on the influence of transport properties showed that different Lewis numbers do not have an influence on the isothermal flow. The simulation of the reactive flow was done using premixed flamelets and clearly showed that the flame tip stabilizes inside the mixing tube. An increase in axial velocity at the centerline, caused by the heat release over the flame front, was identified as mechanism which resisted against flashback in the simulation.
dc.language.isoeng
dc.publisherUniversitat Politècnica de Catalunya
dc.subjectÀrees temàtiques de la UPC::Energies
dc.subject.lcshHydrogen as fuel -- Combustion -- Computer simulation
dc.subject.lcshHeat-engines -- Design and construction
dc.subject.lcshHeat-engines -- Combustion -- Mathematical models
dc.titleNumerical investigation of the mixing and combustion in a partially premixed swirl-stabilized hydrogen flame
dc.typeMaster thesis
dc.subject.lemacHidrogen com a combustible -- Combustió -- Simulació per ordinador
dc.subject.lemacMotors tèrmics -- Disseny i construcció
dc.subject.lemacMotors tèrmics -- Combustió -- Models matemàtics
dc.identifier.slugETSEIB-240.158572
dc.rights.accessRestricted access - author's decision
dc.date.lift10000-01-01
dc.date.updated2021-05-14T04:19:47Z
dc.audience.educationlevelMàster
dc.audience.mediatorEscola Tècnica Superior d'Enginyeria Industrial de Barcelona
dc.audience.degreeMOBILITAT INCOMING
dc.contributor.covenanteeBarcelona Supercomputing Center
dc.contributor.covenanteeTechnische Universität Berlin
dc.description.sdgObjectius de Desenvolupament Sostenible::7 - Energia Assequible i No Contaminant


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