Vibration effects on heat transfer during solidification of paraffin

dc.contributor.authorGovender, Saneshan
dc.contributor.authorZiskind, Gennady
dc.contributor.upauthorVadasz, Johnathan J.
dc.contributor.upauthorMeyer, Josua P.
dc.date.accessioned2015-04-09T11:38:24Z
dc.date.available2015-04-09T11:38:24Z
dc.date.issued2012
dc.description.abstractPaper presented at the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012.en_ZA
dc.description.abstractPrevious work looked at the solidification process of PCM (phase change material) paraffin wax. Experimental results were compared with numerical work done in CFD package FLUENT. In the current study, the effects of vibration on heat transfer during the solidification process of PCM in a sphere shell are investigated. Enhancement of heat transfer results in quicker solidification times and desirable mechanical properties of the solid. The amount of PCM used was kept constant during each experiment by using a digital scale to check the weight, and thermocouple to check consistent temperature. A small amount of air was present in the sphere so that the sphere was not filled completely. Commercially available paraffin wax, RT35, was used in the experiments. Experimentations were done on a sphere of 40 mm diameter, wall temperature 20°C below mean solidification temperature, and consistent initial temperature. A vibration frequency was varied from 10-300 Hz was applied to the set-up and results compared with that of no vibration. Samples were taken at different times during the solidification process and compared with respect to solid material presenten_ZA
dc.description.librariandc2014en_ZA
dc.format.extent9 pagesen_ZA
dc.format.mediumPDFen_ZA
dc.identifier.citationVadasz, J, Meyer, J, Govender, S & Ziskind, G 2012, Vibration effects on heat transfer during solidification of paraffin, Paper presented to the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012.en_ZA
dc.identifier.isbn9781868549863
dc.identifier.isbn9
dc.identifier.urihttp://hdl.handle.net/2263/44288
dc.language.isoenen_ZA
dc.publisherInternational Conference on Heat Transfer, Fluid Mechanics and Thermodynamicsen_ZA
dc.relation.ispartofHEFAT 2012en_US
dc.rightsUniversity of Pretoriaen_ZA
dc.subjectSolidification process of PCMen_ZA
dc.subjectPCMen_ZA
dc.subjectPhase change materialen_ZA
dc.subjectFluenten_ZA
dc.subjectCFDen_ZA
dc.subjectHeat transferen_ZA
dc.subjectSolidification processen_ZA
dc.titleVibration effects on heat transfer during solidification of paraffinen_ZA
dc.typePresentationen_ZA

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