Modelling directional casting processes in which heat conduction and cavity radiation are the dominant modes of heat transfer

dc.contributor.advisorMitchell, Gen_ZA
dc.contributor.advisorNurick, Geralden_ZA
dc.contributor.advisorMartin, Johnen_ZA
dc.contributor.authorKotschy, P Jen_ZA
dc.date.accessioned2014-07-31T11:21:14Z
dc.date.available2014-07-31T11:21:14Z
dc.date.issued2002en_ZA
dc.descriptionIncludes bibliographical references.
dc.description.abstractDirectional investment casting processes involve complex interactions of various mechanisms of heat and mass thansfer in spatially complex domains and in the presence of a change of phase. In particular, the transfer of heat within the furnace occurs in the form of conduction, convection and radiation. This thesis addresses the development of computational techniques to simulate, at a macroscopic scale, such casting processes. In this study the conservation of heat energy within the casting is assumed to be maintained by conduction, accompanied by the release of latent heat energy during solidification. The overall state of the radiation in the furnace chamber is analysed in terms of the absorbed, emitted and reflected energies for each surface defining the geometry of the chamber. By applying a diffuse-grey approximation to these energies, an expression for the net flux for each surface is derived.en_ZA
dc.identifier.apacitationKotschy, P. J. (2002). <i>Modelling directional casting processes in which heat conduction and cavity radiation are the dominant modes of heat transfer</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering. Retrieved from http://hdl.handle.net/11427/5522en_ZA
dc.identifier.chicagocitationKotschy, P J. <i>"Modelling directional casting processes in which heat conduction and cavity radiation are the dominant modes of heat transfer."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering, 2002. http://hdl.handle.net/11427/5522en_ZA
dc.identifier.citationKotschy, P. 2002. Modelling directional casting processes in which heat conduction and cavity radiation are the dominant modes of heat transfer. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Kotschy, P J AB - Directional investment casting processes involve complex interactions of various mechanisms of heat and mass thansfer in spatially complex domains and in the presence of a change of phase. In particular, the transfer of heat within the furnace occurs in the form of conduction, convection and radiation. This thesis addresses the development of computational techniques to simulate, at a macroscopic scale, such casting processes. In this study the conservation of heat energy within the casting is assumed to be maintained by conduction, accompanied by the release of latent heat energy during solidification. The overall state of the radiation in the furnace chamber is analysed in terms of the absorbed, emitted and reflected energies for each surface defining the geometry of the chamber. By applying a diffuse-grey approximation to these energies, an expression for the net flux for each surface is derived. DA - 2002 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2002 T1 - Modelling directional casting processes in which heat conduction and cavity radiation are the dominant modes of heat transfer TI - Modelling directional casting processes in which heat conduction and cavity radiation are the dominant modes of heat transfer UR - http://hdl.handle.net/11427/5522 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/5522
dc.identifier.vancouvercitationKotschy PJ. Modelling directional casting processes in which heat conduction and cavity radiation are the dominant modes of heat transfer. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering, 2002 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/5522en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Mechanical Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherMechanical Engineeringen_ZA
dc.titleModelling directional casting processes in which heat conduction and cavity radiation are the dominant modes of heat transferen_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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