Study of Thermal Load Peak Treatment in the Air Gap Utilising Turbulent Aerosol Flows (B03)

• Subject Area: Fluid Mechanics ; Technical Thermodynamics
• Term: since 2022
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 492661287

Overheating of the rotor in electric motors may alter the magnetic properties of rotor-integrated surface magnets or damage electric insulation layers. The present study aims to significantly enhance current airflow based direct surface cooling principles by adding small liquid drops to the flow passing through the rotor-stator gap. The interaction between airflow flow, droplet dynamics and substrate properties on the resulting heat flux will be studied in detail in a generic rotor test section. The aim of the planned research is to experimentally identify driving cooling mechanisms to develop an experimentally validated model for aerosol based thermal load peak treatment in a rotor-stator gap.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 361: Computational Electric Machine Laboratory: Thermal Modelling, Transient Analysis, Geometry Handling and Robust Design
• Applicant Institution: Technische Universität Darmstadt
• Project Heads: Professorin Dr.-Ing. Jeanette Hussong; Professor Dr.-Ing. Ilia Roisman