化工进展 ›› 2022, Vol. 41 ›› Issue (7): 3431-3445.DOI: 10.16085/j.issn.1000-6613.2021-1739

• 化工过程与装备 • 上一篇    下一篇

液体阵列射流冲击冷板工质与传热结构研究进展

汤振彪(), 崔晓钰()   

  1. 上海理工大学能源与动力工程学院,上海 200093
  • 收稿日期:2021-08-13 修回日期:2021-12-24 出版日期:2022-07-25 发布日期:2022-07-23
  • 通讯作者: 崔晓钰
  • 作者简介:汤振彪(1997—),男,硕士研究生,研究方向为强化传热传质。E-mail:1101541415@qq.com

Research progress on working medium and heat transfer structure of liquid cooling plate with array jet impingement

TANG Zhenbiao(), CUI Xiaoyu()   

  1. College of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
  • Received:2021-08-13 Revised:2021-12-24 Online:2022-07-25 Published:2022-07-23
  • Contact: CUI Xiaoyu

摘要:

液体阵列射流冲击冷却是解决高热流密度散热问题的最有效技术之一,能够有效地对目标表面进行散热,具有散热能力高、能效比高和噪声低的优点,在散热方面具有巨大优势。本文简述了国内外对阵列射流冲击的研究进展,从换热工质和射流冲击冷板的换热结构两个方面,指出了其对液体阵列射流冲击换热特性的影响,并介绍了倾斜射流和旋流射流两种新型阵列射流方式。综合分析了常用的液体换热工质和纳米流体换热工质在射流冲击过程中强化换热的原理,介绍了喷嘴孔型、喷嘴的排列方式和冲击表面结构三种阵列射流结构。分析表明,不同孔型的喷嘴会影响流体的射流速度和湍流特性,不同的喷嘴排列方式会对射流流体的相互作用和有效冲击面积产生影响,不同的冲击表面会影响射流工质的循环混合,这些都将对射流冷板的换热特性产生很大影响。指出了解影响液体阵列射流冲击效果的主要因素,是改善和提高射流换热性能的根本方法。

关键词: 传热, 阵列射流冲击, 喷嘴排列方式, 喷嘴形状, 冲击表面

Abstract:

Liquid array jet impingement cooling is one of the most effective techniques to solve the heat dissipation problem of high heat flux. It can effectively remove heat from the target surface. It has the advantages of high heat dissipation capacity, high energy efficiency ratio and low noise, having a huge advantage in heat dissipation. In this paper, the research progress of array jet impingement at home and abroad is briefly summarized. The influence of array jet impingement on heat transfer characteristics of liquid array jet is comprehensively analyzed from two aspects that heat transfer medium and heat transfer structure of jet impingement cold plate. Two new array jet types that incline jet and swirl jet are introduced. The principle of strengthening heat transfer in jet impingent process by common liquid working medium and nano fluid working medium is introduced. Three kinds of array jet structures including nozzle shape, nozzle arrangement and impact surface structure are introduced. The results show that the nozzle with different shapes will affect the jet velocity and turbulent characteristics of the fluid, the nozzle arrangement will affect the interaction of the jet fluid and the effective impact area, and the impact surface will affect the circulation mixing of the jet working medium. These kinds of array jet structures will have a great influence on the heat transfer characteristics of the array jet impingement cooling plate. Understanding the main influence factors of array jet impact effect is the fundamental method to improve jet heat transfer performance.

Key words: heat transfer, array jet impingement, arrangement of jet nozzles, nozzle shape, impinging surface

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