Review on state-of-the-art research in pool and flow boiling under microgravity
Review on state-of-the-art research in pool and flow boiling under microgravity
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DOI：
10.1016/j.expthermflusci.2023.110848
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发表时间：
2023-01
影响因子：
3.2
通讯作者：
Sihui Hong;Jiaxu Wang;Zhijie Gao;C. Dang
中科院分区：
文献类型：
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作者：
Sihui Hong;Jiaxu Wang;Zhijie Gao;C. Dang
随着空间科学技术的不断发展，航天员行星基地的扩展和地外资源的利用成为可能。空间热管理系统和生命保障系统是航天员生存和空间平台稳定运行的关键。本文综述了微重力条件下两相流动和传热性能的研究进展。收集整理了微重力池和流动沸腾的相关文献，总结了微重力和正常重力条件下两相流动沸腾的典型差异，包括两相流动压降、传热系数、临界热流密度和流型等。比较现有文献中的数据，在池和流动沸腾的传热中观察到微重力下，这可能是由于气泡尺寸的增加和延迟的脱离期的一般恶化。同时，在微重力非绝热条件下观察到较大的压降和较厚的液膜。研究结果表明，虽然微重力条件下的实验数据丰富，但相关理论的关联性和机理模型的缺乏以及实验结论的不一致性，影响了空间热管理系统的建立。本综述的结论有望为微重力池和流动沸腾的有效利用提供见解，并为未来具有更高能效和更小重量和体积的空间热管理系统提供可靠的建议。
With the continuous development of space science and technology, the expansion of astronaut planetary bases and utilization of extraterrestrial resources have become possible. Space thermal management systems and life support systems are essential for astronaut survival and stable operation of space platforms. This paper reviews the literature on two-phase flow and heat transfer performance under microgravity. The purpose of the present work is to collect and collate the key data of microgravity pool and flow boiling in the literature and summarize the typical differences in two-phase boiling, including two-phase flow pressure drop, heat transfer coefficient, critical heat flux, and flow patterns between normal gravity and microgravity conditions. Comparing the data from the available literature, a general deterioration in the heat transfer in both pool and flow boiling was observed under microgravity, which may be caused by the increase in bubble size and the delayed detachment period. Meanwhile, larger pressure drops and thicker liquid films were observed under microgravity diabatic conditions. The investigation results show that although there are abundant experimental data in microgravity, the lack of correlations and mechanistic models of related theories and inconsistent experimental conclusions have compromised the process of establishing space thermal management systems. The conclusion of the present review is expected to provide insights into the efficient utilization of microgravity pool and flow boiling, and provide reliable recommendations for future space thermal management systems with higher energy efficiency and smaller weight and volume.