Heat Exchange Analysis of Brushless Direct Current Motors

Maciej Mazur (), Wojciech Skarka (), Maciej Kobielski, Damian Kądzielawa, Robert Kubica, Clemens Haas and Hubert Unterberger
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Maciej Mazur: Sanhua-Aweco, Turyńska 80, 43-100 Tychy, Poland
Wojciech Skarka: Department of Fundamentals of Machinery Design, The Faculty of Mechanical Engineering, Silesian University of Technology, Stanislawa Konarskiego 18A, 44-100 Gliwice, Poland
Maciej Kobielski: Sanhua-Aweco, Turyńska 80, 43-100 Tychy, Poland
Damian Kądzielawa: Sanhua-Aweco, Turyńska 80, 43-100 Tychy, Poland
Robert Kubica: Department of Chemical Engineering and Process Design, The Faculty of Chemistry, Silesian University of Technology, Ks. Marcina Strzody 9, 44-100 Gliwice, Poland
Clemens Haas: Bleckmann GmbH & Co. KG, Bürmooser Str. 5, 5112 Lamprechtshausen, Austria
Hubert Unterberger: Bleckmann GmbH & Co. KG, Bürmooser Str. 5, 5112 Lamprechtshausen, Austria

Energies, 2024, vol. 17, issue 24, 1-20

Abstract: The brushless DC (BLDC) motor is crucial in a variety of industrial and consumer applications due to its efficiency and precise control. This study investigates the heat transfer and cooling mechanisms in liquid-cooled BLDC motors in dishwashers, which are fundamental to maintaining optimal operating temperatures. Elevated temperatures can reduce operational efficiency, emphasizing the importance of effective heat dissipation. Liquid cooling proves to be very effective and offers advantages over air cooling by providing even temperature distribution and more accurate temperature control. Integrating liquid cooling systems into dishwasher designs provides a viable solution for managing motor temperatures while preheating dishwashing water. Using existing water infrastructure, these systems dissipate heat generated during motor operation, increasing energy efficiency and reliability, as analyzed using computational fluid dynamics (CFDs). The aim of this study is to optimize thermal management strategies in BLDC motors, particularly in dishwashers, by filling a critical gap in the existing literature. The goal of this comprehensive analysis is to develop resistant and efficient cooling solutions tailored to dishwasher environments, ultimately extending the life of BLDC motors in home appliances while using heat transfer to preheat water for wash cycles.

Keywords: electric motor cooling; heat exchange; water-based cooling; stator temperature; thermal management; heat transfer; numerical methods; cooling system; computational fluid dynamics (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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