• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Scientific Reports >Scalable Surface Microstructuring by a Fiber Laser for Controlled Nucleate Boiling Performance of High- and Low-Surface-Tension Fluids
【2h】

Scalable Surface Microstructuring by a Fiber Laser for Controlled Nucleate Boiling Performance of High- and Low-Surface-Tension Fluids

机译：光纤激光器可扩展的表面微观结构可控制高和低表面张力流体的成核沸腾性能

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Nucleate boiling enables effective cooling and heat transfer at low temperature differences between a heated surface and the surrounding fluid. It is utilized in many applications, ranging from large power plants to small microelectronics. To enhance the boiling process by minimization of the surface temperature and increase the maximum attainable heat flux, several approaches for surface modifications were recently developed. However, each of them has at least one important drawback, including challenging and expensive production, mechanical and/or thermal instability or problematic scale-up. Herein, a straightforward, robust and flexible method using a nanosecond fiber laser for production of surfaces with multi-scale micro-cavities (with diameters ranging from 0.2 to 10 μm) is developed. Examination of these surfaces in two very contrasting fluids - water, which is polar, has high surface tension and high latent heat of vaporization; and non-polar, dielectric tetradecafluorohexane (FC-72) with low surface tension and much lower latent heat - confirms that such surfaces enable enhanced heat transfer and controlled boiling in combination with diverse fluids. This demonstration suggests that the developed method has the potential to overcome the current limitations for further miniaturization of microelectronic devices and to increase performance and safety in high heat flux systems.
机译：核沸腾能够在被加热表面与周围流体之间的低温差下实现有效的冷却和传热。它被用于许多应用，从大型发电厂到小型微电子学。为了通过最小化表面温度来增强沸腾过程并增加最大可获得的热通量，最近开发了几种表面改性方法。然而，它们中的每一个都具有至少一个重要的缺点，包括挑战性和昂贵的生产，机械和/或热不稳定性或成问题的放大。在此，开发了一种使用纳秒级光纤激光器的简单，鲁棒且灵活的方法，用于生产具有多尺度微腔（直径范围从0.2到10μm）的表面。在两种截然不同的流体中检查这些表面-极性的水具有高的表面张力和高的汽化潜热；以及具有低表面张力和低得多的潜热的非极性介电十四氟己烷（FC-72）-证实了此类表面能够与各种流体结合使用，从而增强传热和控制沸腾。该演示表明，所开发的方法有可能克服当前对微电子器件进一步小型化的限制，并提高高热通量系统的性能和安全性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号