Evaporative cooling systems for electrified powertrain components

用于电气化动力总成部件的蒸发冷却系统

• 批准号: 10044139
• 金额: $ 6.11万
• 依托单位: COVENTRY AEROSPACE LIMITED
• 依托单位国家: 英国
• 项目类别: Grant for R&D
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=10044139
• 关键词: Evaporative; cooling; systems; electrified; powertrain

Evaporative cooling systems for electrified powertrain components: This project will address the need for a lightweight/low-cost thermal management system that can be used alongside air-cooled components including drive/traction motors to replace the requirement for bulky liquid cooling systems in mass-sensitive applications including electric aircraft.High power density electric motors now are widespread in use and the demand for electrified powertrains is set to increase as society shifts towards low carbon transport, high volumetric power densities have made using passive air cooling systems more challenging. Typically, powertrain installations either impose a short duration limit where high power settings can be utilised or use a liquid-cooling architecture to manage the machine's temperature. Neither of these solutions is desirable in mass-sensitive applications where prolonged periods of high power are required, but the majority of the time is spent at more moderate power levels typical of many powertrains.In this project, the use of an evaporative cooling system will be investigated and developed, focusing on the motor in a light aircraft's electric powertrain; the system will act as an additional form of cooling in high-demand periods of motor operation when the airflow alone is insufficient. Using an evaporative cooling system with directed spray onto known motor hotspots will provide a targeted heat rejection method that provides a lighter and more compact alternative to a conventional closed-loop coolant system.In summary, the project aims to develop an approach to address the cooling needs of electrical machines that provide the high heat rejection of liquid-based cooling with the simplicity and weight advantages of an air-based system.

用于电动动力总成组件的蒸发冷却系统：该项目将满足对轻质/低成本的热管理系统的需求，可以与空气冷却的组件一起使用，包括驱动/牵引力/牵引电机，以替换较大的液体冷却系统的需求，以替换质量敏感的应用程序，包括电动飞机在内的质量敏感性和较低的电动机的需求。使用被动空气冷却系统使运输，高容量密度更具挑战性。通常，动力总成安装要么施加一个短持续时间限制，如果可以利用高功率设置，或者使用液体冷却架构来管理机器的温度。这些解决方案均在需要延长高功率时期的质量敏感应用中，但大部分时间都在许多动力总成的典型功率水平上花费。在这个项目中，将使用蒸发冷却系统的使用，并专注于轻型飞机的电动机电动机电动机的电动机；当仅气流不足时，该系统将在高需求的电动机运行期间充当一种额外的冷却形式。在已知的电动机热点上使用蒸发冷却系统将带有定向喷雾剂提供有针对性的热排斥方法，该方法为传统的闭环冷却液系统提供了更轻质，更紧凑的替代方法。总而言之，该项目旨在开发一种方法来解决电气机的冷却需求，以提供液体基于液体液体的液体冷却量的高热量，并提供简化的液化系统。