Thermographic analysis of thin liquid films on a rotating disc: approach and challenges

dc.contributor.authorGhiasy, D.
dc.contributor.authorBoodhoo, K.V.K.
dc.contributor.authorTham, M.T.
dc.date.accessioned2014-12-01T13:32:35Z
dc.date.available2014-12-01T13:32:35Z
dc.date.issued2011
dc.description.abstractPaper presented at the 8th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Mauritius, 11-13 July, 2011.en_US
dc.description.abstractThis paper examines the temperature profiles and flow characteristics of thin liquid films on a rotating surface by means of an Infrared (IR) thermal imaging camera. The challenges of obtaining accurate temperature measurements using thermographic techniques, in particular for thin liquid films of varying thicknesses, are outlined in this study. The captured images of the liquid film provide a visual insight into the heat transfer mechanism as the cold liquid moves from centre of a rotating disc towards its edges. The effect of liquid film viscosity, rotational speed, feed flowrate and disc temperature on heat transfer efficiency from the heated disc to the cold film is investigated. The temperature profiles obtained by the Infrared camera are compared to those estimated by a theoretical model of disc/film heat transfer. The results provide an excellent platform for qualitative analysis of heating thin liquid films in highly accelerated centrifugal fields. The quantitative analysis is, however, associated with some degrees of uncertainty due to the limitations described in this paper.en_US
dc.description.librarianmp2014en_US
dc.format.extent9 pagesen_US
dc.format.mediumPDFen_US
dc.identifier.citationGhiasy, , Boodhoo, KVK & Tham MT 2011, Thermographic analysis of thin liquid films on a rotating disc: approach and challenges, Paper presented to the 8th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Mauritius, 11-13 July, 2011.en_US
dc.identifier.urihttp://hdl.handle.net/2263/42732
dc.language.isoenen_US
dc.publisherInternational Conference on Heat Transfer, Fluid Mechanics and Thermodynamicsen_US
dc.relation.ispartofHEFAT 2011en_US
dc.rightsUniversity of Pretoriaen_US
dc.subjectThermographic analysisen_US
dc.subjectThin liquid filmsen_US
dc.subjectRotating discen_US
dc.subjectTemperature profilesen_US
dc.subjectFlow characteristicsen_US
dc.subjectInfrared (IR) thermal imaging cameraen_US
dc.titleThermographic analysis of thin liquid films on a rotating disc: approach and challengesen_US
dc.typePresentationen_US

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