Project Details
Projekt
Highly Efficient Heat Transfer Through Multi-phase Cooling (B02)
Subject Area
Fluid Mechanics
Term
since 2022
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 492661287
Cooling the rotor of electrical machines is still a challenge due to poor thermal connectivity. In the first funding phase, for a heat pipe-based cooling strategy, the necessary numerical methods were developed and tested within the highly accurate BoSSS framework. In the second phase, this concept will be continued with two central approaches. First, the heat pipes will be further optimised by modelling their wick structure as a porous medium with a capillary-like surface layer, including the investigation of centrifugal effects and the off-axis distribution of multiple heat pipes. Second, direct liquid cooling by injecting coolant into the rotor-stator gap is investigated. Different rotor speeds lead to different flow states, including chaotic foam flow and layered structures. These will be modelled and simulated with BoSSS and validated by experiments in project B05.
DFG Programme
CRC/Transregios
Subproject of
TRR 361:
Computational Electric Machine Laboratory: Thermal Modelling, Transient Analysis, Geometry Handling and Robust Design
International Connection
Austria
Applicant Institution
Technische Universität Darmstadt
