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Review of aerospace-oriented spray cooling technology

机译：综述航空航天导向喷雾冷却技术

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Motivated by the concept of energy-optimized air/space vehicles, the design of more-electric and all-electric vehicles has become increasingly popular. With the advance of micro-electro-mechanical systems, on-board electronic/electrical devices become more integrated and miniaturized. It means that these highly-advanced devices should rely on a high heat-flux dissipation method to maintain an effective and safe operation. Spray cooling, universally recognized as the next-generation cooling scheme, has been extensively utilized in the thermal protection of the ground-based electric/electronic equipment. In contrast, the aerospace-oriented spray cooling (AOSC) application is extremely rare. It can be attributed to the fact that the research into the space/air-oriented spray cooling technologies is still in its infancy, which leads to a lack in the knowledge of alternations of flow patterns and heat transfer behaviors caused by the complicated space or high-altitude space. This paper presents a comprehensive review of the up-to-date published articles on AOSC and divides these published articles into four categories: 1) investigation into the effect of gravity on the cooling performance; 2) investigation into the effect of environmental pressure on the cooling performance; 3) study of the effect of acceleration and vibration on the cooling performance; 4) investigation of the aerospace spray cooling system. Additionally, comments, perspectives, and orientations are provided, in which several promising contributions are highlighted. This paper aims to promote the practical application of the AOSC system which could facilitate the development of the energy-optimized green air/space vehicle.
机译：由能源优化空气/空间车辆的概念而激励，更多电动和全电动汽车的设计变得越来越受欢迎。随着微机电系统的前进，板载电子/电气装置变得更加集成和小型化。这意味着这些高级设备应依赖于高热量耗散方法来维持有效和安全的操作。喷雾冷却，普遍认为是下一代冷却方案，广泛利用了地面电/电子设备的热保护。相比之下，航空航天导向的喷雾冷却（AOSC）应用极为罕见。它可以归因于将空间/空气导向的喷雾冷却技术的研究仍处于初期的事实，这导致缺乏由复杂的空间或高度引起的流动模式和传热行为的交替知识 - 静地空间。本文介绍了对AOSC的最新公布文章的全面审查，将这些公布的文章分为四类：1）调查重力对冷却性能的影响; 2）调查环境压力对冷却性能的影响; 3）研究加速度和振动对冷却性能的影响; 4）对航空喷雾冷却系统的调查。此外，提供了评论，观点和方向，其中突出了几个有前途的贡献。本文旨在促进AOSC系统的实际应用，可以促进能源优化的绿色空气/太空车辆的发展。

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