Determination of Heat Transfer Coefficient from Housing Surface of a Totally Enclosed Fan-Cooled Machine during Passive Cooling
Machines 2021
Payam Shams Ghahfarokhi, Andrejs Podgornovs, Ants Kallaste, Antonio J. Marques Cardoso, Anouar Belahcen, Toomas Vaimann, Bilal Asad, Hans Tiismus

his paper presents the analytical calculation of the heat transfer coefficient of a complex housing shape of a Totally Enclosed Fan-Cooled (TEFC) industrial machine when it works below 20% of its nominal speed or close to stall. Therefore, passive cooling is dominant, and most of the heat is extracted by the combination of natural convection and radiation phenomena. Under these conditions, the area-based composite approach was used for the development of the analytical calculation method. A test rig using a TEFC Synchronous Reluctance Motor (SynRM) was constructed, and the collected experimental data was used to validate the proposed analytical method successfully.


DOI
10.3390/machines9060120
Hyperlink
https://www.mdpi.com/2075-1702/9/6/120

Shams Ghahfarokhi, P., Podgornovs, A., Kallaste, A., Marques Cardoso, A., Belahcen, A., Vaimann, T., Asad, B., Tiismus, H. Determination of Heat Transfer Coefficient from Housing Surface of a Totally Enclosed Fan-Cooled Machine during Passive Cooling. Machines, 2021, Vol. 9, No. 6, Article number 120. ISSN 2075-1702. Available from: doi:10.3390/machines9060120

Publication language
English (en)
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