The effect of geometrical electrical cable configurations on heat transfer in cable ducts

 dc.contributor leon.pretorius@up.ac.za en_ZA dc.contributor.author Kruger, S. dc.contributor.upauthor Pretorius, Leon dc.date.accessioned 2016-07-19T12:00:33Z dc.date.available 2016-07-19T12:00:33Z dc.date.issued 2015 dc.description.abstract Papers presented to the 11th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, South Africa, 20-23 July 2015. en_ZA dc.description.abstract In this paper a numerical study of two-dimensional en_ZA conjugate natural convection in square cavity containing heated cylinders and outer isothermal boundaries is performed. The cavity is designed to simulate an unfilled trough containing electrical cables. The purpose of this paper is to investigate the effect of geometrical arrangements of electrical cables in underground cable ducts on the heat transfer from the cables. The numerical investigation is performed using Computational Fluid Dynamics. Asymetric flow around the cables caused the temperature distributions around the cables for the different geometric arrangement to be dissimilar. The local Nusselt number around the cables was a function of the angle ( ), and the Nusselt number distributions vary for each cable and arrangement. The diagonal arrangement was found to be the least favourable, as this arrangement leads to higher temperatures in the cables compared to the vertical and horizontal arrangement. dc.description.librarian am2016 en_ZA dc.format.medium PDF en_ZA dc.identifier.citation Kruger, S & Pretorius, L 2015, 'The effect of geometrical electrical cable configurations on heat transfer in cable ducts', Paper presented to the 11th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 20-23 July 2015. en_ZA dc.identifier.isbn 97817759206873 dc.identifier.uri http://hdl.handle.net/2263/55976 dc.language.iso en en_ZA dc.publisher International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics en_ZA dc.rights © 2015 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. en_ZA dc.subject Heated cylinders en_ZA dc.subject Cavity en_ZA dc.subject Computational fluid dynamics (CFD) en_ZA dc.subject Ducts en_ZA dc.title The effect of geometrical electrical cable configurations on heat transfer in cable ducts en_ZA dc.type Presentation en_ZA
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