祝贺硕士生贺静撰写的论文成为第23届PRES’20 国际会议“Hot Paper”
- 发布时间：
- 2020-08-26
- 文章标题：
- 祝贺硕士生贺静撰写的论文成为第23届PRES’20 国际会议“Hot Paper”
- 内容：
2018级硕士生贺静参加了第23届PRES'20国际会议，所撰写的文章成为此次会议的热点文章之一。见图1所示
图1 Hot Paper
参会文章题目 ：
Effect of Fin Size on Flow Boiling Heat Transfer in Channel with Pin-Fin Arrays
Jing He, Yongsheng Xu, Mei Lin*,Qiuwang Wang
School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
janeylinm@mail.xjtu.edu.cn
With the increasing of electricity consumption, the heat released by convert valve also increases rapidly. So a more efficient cooling element is required. A flow boiling cooling channel designed with pin-fin arrays was used in this paper to replace traditional water cooling channel. The channel was a cuboid and had a base area of 40×30mm2. Three fin heights and three fin diameters were discussed, respectively. Novec 649 was used as the refrigerant. The mass flux was 1527 kg/(m2·s) for all working condition and the heat flux ranged from 50 to 300 kW/m2, respectively. The Mixture multiphase flow model in FLUENT was used to numerically simulate the flow boiling. According to the results, the average heat transfer coefficient and pressure drop decreased while the average fin efficiency increased with increasing heat flux. The highest temperature zone of the channel was near the outlet at high fin height while that was near sidewalls at low fin height. When the fin diameter was identical, the average heat transfer coefficient was largest at the highest fin. When the fin area was identical, the bigger fin diameter contributed to the higher average heat transfer coefficient. The heat transfer coefficient for unit pressure drop increased with increasing fin height and decreased with increasing fin diameter. The results could provide reference for designing cooling elements.