Numerical study of the thermal and hydraulic characteristics of a round tube heat exchanger with louvered fins and delta winglets

dc.contributor.authorHuisseune, Henk
dc.contributor.authorDe Jaeger, P.
dc.contributor.authorT’Joen, Christophe
dc.contributor.authorAmeel, B.
dc.contributor.authorDe Paepe, M.
dc.date.accessioned2014-06-13T10:53:34Z
dc.date.available2014-06-13T10:53:34Z
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.abstractLouvered fin and round tube heat exchangers are widely used in air conditioning devices and heat pumps. In this study the effect of punching delta winglet vortex generators into the louvered fin surface in the near wake region of each tube was investigated. Numerical simulations were performed on the compound design and the thermal and hydraulic characteristics were evaluated. It was found that the delta winglets can significantly reduce the size of the wake regions. This results in an enhanced heat transfer. Further, it was shown that the vortices do not propagate far downstream. Due to the flow deflection they are destroyed in the downstream louver bank. For the configuration studied, the pressure drop penalty of adding vortex generators was also significant, indicating that an optimization is necessary to select a compound design with improved overall performance.en_US
dc.description.librarianmp2014en_US
dc.format.extent7 pagesen_US
dc.format.mediumPDFen_US
dc.identifier.citationHuisseune, H, De Jaeger, P, T’Joen, C, Ameel, B & De Paepe, M 2011, 'Numerical study of the thermal and hydraulic characteristics of a round tube heat exchanger with louvered fins and delta winglets', 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/2263/40171
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.subjectNumerical studyen_US
dc.subjectThermal characteristicsen_US
dc.subjectHydraulic characteristicsen_US
dc.subjectRound tube heat exchangeren_US
dc.subjectLouvered finsen_US
dc.subjectDelta wingletsen_US
dc.titleNumerical study of the thermal and hydraulic characteristics of a round tube heat exchanger with louvered fins and delta wingletsen_US
dc.typePresentationen_US

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