期刊
APPLIED THERMAL ENGINEERING
卷 200, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.applthermaleng.2021.117611
关键词
Heat pipe; Multi-layer wick; Anti-gravity; Critical heat load
资金
- Sichuan Science and Technology Program [2019ZDZX0022, 2018GZ0145]
By fabricating multi-layer wick heat pipes, the heat transfer performance in the anti-gravity direction was effectively improved, with a higher critical heat load compared to traditional homogeneous wick heat pipes. This will expand the applications of multi-layer wick heat pipes in terrestrial environments.
To improve the heat transfer performance in the anti-gravity direction, the multi-layer wick heat pipe with three pore sizes was fabricated. The wick consisted of a coarse powder layer and a nanoporous fine copper powder layer. The critical heat load of the multi-layer wick was as high as 79 W in the 90 degrees direction, while the homogeneous wick sintered from coarse powder and nanoporous fine powder is only 23 W and 30 W, respectively. Multi-layer wick heat pipes with high heat transfer capacity will broaden their applications in terrestrial environments.
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