Pool Boiling Experiment on Modified Micro-Pin-Finned Surface with Mechanical Oscillation
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Pool Boiling Experiment on Modified Micro-Pin-Finned Surface with Mechanical Oscillation
- 发表刊物：
- Heat Transfer Research, 2018, 48(9): 991–1001.
- 摘要：
- To further enhance pool boiling heat transfer, a new oscillation device was proposed. An oscillating plate was located over the heater surface with a vertical oscillation amplitude of 20 mm and frequency of 6 Hz. Three N-type phosphorus-doped silicon chips were used as heater surfaces. One was a smooth surface, and the other two were micropin-fi nned chips with a fi n side length of 30 μm and fi n height of 60 μm (chip PF30-60), and the pin fi ns were arrayed with aligned and staggered arrangements, respectively. Absolute ethyl alcohol was used as a working fl uid. The results showed that mechanical oscillation can enhance boiling heat transfer in both convective region and high heat fl ux region. The wall superheat showed a considerable decrease of 20–30oC in the convective region by thinning the thermal boundary layer on the heater surface, and the critical heat fl ux could also be increased by 20%. In addition, the micropin-fi nned chips showed bett er performance due to much more fresh liquid supply from the interconnected tunnels formed by micropin fi ns, which is driven by capillary force.
- 合写作者：
- JinjiaWei*, Xin Kong, Jie Ding, Yonghai Zhang
- 卷号：
- 48(9)
- 页面范围：
- 1–11
- 是否译文：
- 否
- 发表时间：
- 2017-05-06