Toggle Main Menu Toggle Search

Open Access padlockePrints

Analysis of Power Loss in Heat Pipes for Integrated Thermal Management of Electrical Machines

Lookup NU author(s): Dr Rafal Wrobel



This is the authors' accepted manuscript of a conference proceedings (inc. abstract) published in its final definitive form in 2023. For re-use rights please refer to the publishers terms and conditions.


This paper presents analysis of eddy-current power loss in heat pipes (HPs) for integrated thermal management of electrical machines. Here, a close integration of HPs with winding body is considered. Such an arrangement is particularly attractive, as it targets the main heat source within the machine assembly. However, there are several challenges associated with the subsystem compatibility, which include electromagnetic, thermal, and mechanical design aspects. The HP’s power loss, which is generated as a results of the time varying stator and/or rotor slot magnetic flux leakage, requires careful considerations. Although, the HP-enabled thermal management of electrical machines (electrical windings) has been previously investigated, the additional HP generated power loss has had a very little attention. In this work, the author explores alternative techniques for accurate predictions of HP generated power loss accounting for the HP’s wick structure. Two alternative HP constructions Copper-Water and Titanium-Water with sintered and mesh wicks have been investigated in this analysis. Both theoretical finite element (FE) electromagnetic and experimental methods are discussed in detail. The results suggest that the experiment informed FE model of HP with an equivalent electrical resistivity wick region provides an accurate HP representation useful in design of electrical machines.

Publication metadata

Author(s): Wrobel R

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: Compumag 2023

Year of Conference: 2023

Pages: 2

Online publication date: 26/05/2023

Acceptance date: 22/03/2023

Date deposited: 19/07/2023


ePrints DOI: 10.57711/j58k-me67