Experimental study of nucleate pool boiling of FC-72 on micro-pin-finned surface under microgravity
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Experimental study of nucleate pool boiling of FC-72 on micro-pin-finned surface under microgravity
- 发表刊物：
- International Journal of Heat and Mass Transfer
- 摘要：
- In order to effectively enhance the boiling heat transfer under microgravity, experiments were performed
using micro-pin-finned structure as heater surface in subcooled nucleate pool boiling of FC-72 under
short-term microgravity condition utilizing the drop tower Beijing. Micro-pin-fins with the dimensions
of 30 60 lm2 (thickness height) and the space of 30 lm were fabricated on the surface of square sil-
icon with the dimensions of 10 10 0.5mm3 by using the dry etching technique. The results were
compared with previous published data of smooth chip both in normal gravity and microgravity condi-
tions. The micro-pin-finned chip showed a considerable heat transfer enhancement in the nucleate boil-
ing region with higher upper limit heat flux and lower mean heater surface superheat compared to chip S
under microgravity condition. The high-efficient heat transfer performance of FC-72 on the micro-pin-
finned surface is independent of gravity, which stems from the sufficient supply of fresh liquid to heater
surface due to the capillary forces.
- 合写作者：
- Yanfang Xue, Jianfu Zhao, Jinjia Wei, Yonghai Zhang, Baojin Qi
- 卷号：
- 63
- 页面范围：
- 425-433
- 是否译文：
- 否
- 发表时间：
- 2013-03-31