Temperature moderation in a structure by solidification of a phase-change material

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dc.contributor.author Dubovsky, V.
dc.contributor.author Ziskind, G.
dc.contributor.author Letan, R.
dc.date.accessioned 2014-12-09T11:42:25Z
dc.date.available 2014-12-09T11:42:25Z
dc.date.issued 2012
dc.description.abstract Paper presented at the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012. en_US
dc.description.abstract The current numerical study focuses on the feasibility of temperature moderation in a structure located at mid-storey in a multi-storey building, by using a phase-changing paraffin wax stored on an aluminum tray under the floor tile. Inside the building, at each level, walls are exposed to the ambient. In winter the walls are cooled, and the paraffin wax serves as the heat source, by solidifying in day-time, and melting at night. The numerical model relates to day-time temperature variations, outside and inside the structure. The heat conduction from the paraffin wax is coupled with the free convection of air in the space, radiation between the inside surfaces, heat conduction across the walls and accumulation in the walls. The dimensions of the analyzed structure are: 8m long, 8m wide and 2.5m high. Effects of wax layer thickness and of fins along the tray, on the rate of solidification are parametrically investigated. The simulations are performed for the structure using Fluent 6.3 software. en_US
dc.description.librarian dc2014 en_US
dc.format.extent 5 pages en_US
dc.format.medium PDF en_US
dc.identifier.citation Dubovsky, V, Ziskind, G & Letan, R 2012, Temperature moderation in a structure by solidification of a phase-change material, Paper presented to the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012. en_US
dc.identifier.isbn 9781868549863
dc.identifier.uri http://hdl.handle.net/2263/42880
dc.language.iso en en_US
dc.publisher International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics en_US
dc.relation.ispartof HEFAT 2012 en_US
dc.rights University of Pretoria en_US
dc.subject Multi-storey building en_US
dc.subject Temperature moderation en_US
dc.subject Paraffin wax stored on an aluminum tray en_US
dc.subject Heat conduction en_US
dc.subject Free convection en_US
dc.subject Radiation en_US
dc.subject Fluent 6.3 software en_US
dc.title Temperature moderation in a structure by solidification of a phase-change material en_US
dc.type Presentation en_US


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