Author:
Hu Xuanyang,Qian Yuping,Dong Chaofan,Zhang Yangjun,Wang Changjiang,Zhuge Weilin
Abstract
Equipped with a distributed electric propulsion system, eVTOL is the primary vehicle for future urban air mobility. The electrical machine determines the weight of the distributed electric propulsion system, and the cooling capability determines the electrical machine’s weight. The electrical machine with air cooling is preferred for eVTOL due to its simplicity and light weight. This paper presents a new air-cooling system for an electrical machine in an electric ducted fan propulsion system. The novel cooling system consists of a cooling guide vane with a heat pipe (CGVHP), which is located downstream of the ducted fan rotating blade. The heated end of the heat pipe is inserted into the stator end windings and the cold end is inserted into the cooling guide vane. The heat generated in the windings is transmitted to the cooling guide vane by the heat pipe and dissipated by the forced convection using low-temperature air passing through the ducted fan. The cooling performance of the cooling guide vane with the heat pipe was numerically simulated, considering several critical design factors. The simulation results showed that the proposed CGVHP can be helpful for reducing the winding temperature of the electrical machine by over 25.5 °C at the peak power condition of 15.7 kW.
Reference31 articles.
1. Urban air mobility: A comprehensive review and comparative analysis with autonomous and electric ground transportation for informing future research
2. Air taxi service for urban mobility: A critical review of recent developments, future challenges, and opportunities
3. Flying Cars: Investment Implications of Autonomous Urban Airmobility;Morgan,2018
4. Urban air mobility: The rise of a new mode of transportation
https://www.rolandberger.com/publications/publication_pdf/Roland_Berger_Urban_Air_Mobility.pdf
5. Development of a Ducted Propulsor for BLI Electric Regional Aircraft—Part I: Aerodynamic Design and Analysis;Brown;Proceedings of the AIAA Propulsion and Energy 2019 Forum,2019
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