Title: Modelling of the mixed convection in the windings of a disc-type power transformer
Authors: Mufuta, JM ×
Van den Bulck, Eric #
Issue Date: Apr-2000
Publisher: Pergamon-Elsevier Science LTD
Series Title: Applied Thermal Engineering vol:20 issue:5 pages:417-437
Abstract: The present article describes flow pattern of cooling oil inside the windings of a disc-type transformer. The geometrical model is established as an array of rectangular blocks arranged in-line and dissipating heat. The attention of the investigation is essentially focused on the parameters supposed to influence the flow pattern in order to get a one-dimensional correlation for the heat transfer. Since the convection is mixed, the parameter Re/Gr1/2 is used to characterise the flow. It has the range (0.1,…,1). The ranges of the other parameters are: 15<Re<120, 66<Pr<85. It has been observed that mass flow fluctuation occurs in vertical channels due to some flow through horizontal channels. This fluctuation is proved to be influenced by the above-mentioned parameters.
ISSN: 1359-4311
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Applied Mechanics and Energy Conversion Section
× corresponding author
# (joint) last author

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