铁路牵引电机两相热管理系统概念验证

The paper proposes the implementation of a loop thermosiphon (LTS) as a potential thermal management system to replace the conventional forced-air cooling system in railway traction motors. This aims to address issues such as reducing motor sizes and maintenance costs. The LTS, identified as a two-phase passive cooling system with high thermal conductance, has not been widely used in electric motors. The experimental investigation of the LTS performance in various positions aims to provide comprehensive insights into the impact of different orientations on the LTS system and its heat transfer capabilities. The LTS setup, designed at a 1/12 of the electric motor housing, was tested in different inclinations with a heat load of 470 W. The system's performance in each position was evaluated based on predefined criteria. The findings indicate that the LTS system did not operate in two positions, but in other orientations, it demonstrated overall satisfactory performance.