Fundamental research on the development of a high-performance cooling system utilizing microbubbles emission boiling and a mini-channel

利用微气泡发射沸腾和微通道开发高性能冷却系统的基础研究

• 批准号: 16360099
• 负责人: SHOJI Masahiro
• 金额: $ 9.79万
• 依托单位: National Institute of Advanced Industrial Science and Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16360099/
• 关键词: Subcooled boiling; Microbubble emission boiling; micro-channels; high-performance cooling device; Micro bubbles; Nonlinear surface energy solutions; 高性能冷却デバイス

With the aim of developing high-efficiency and high-performance cooling device, a fundamental researches of microbubble emission pool nucleate boiling and forced convection boiling in micro-mini channels. From the experiment of pool boiling system, it was found that maximum critical heat flux reaches 10 MW/m2 at high subcooling conditions and that the size of bubbles is generally a few tens micron meters and around ten micron meters at high subccolings. From the video observation, it was found that the mechanism of micro-bubble formation relates to the instability of bubble surface. From the flow boiling experiments in micro and mini channels, it was found that when the length of channel is less than a proper length, the pressure loss of flow is low with high heat transfer. It was also found that if we employ a special solute in water such as Butane, it is possible to prohibit the occurrence of dryout or extend the location of dryout. With these experimental researches, it may be said that we can consider the high-efficient, high-performance cooling device by utilizing microbubble emission boiling and micro-mini channels.

以开发高效、高性能的冷却装置为目标，对微小通道内的微泡发射池核态沸腾和强制对流沸腾进行了基础性研究。池沸腾实验发现，在深过冷条件下，最大临界热流密度可达10 MW/m ~ 2，气泡尺寸一般为几十微米，深过冷时为十几微米。通过视频观察发现，微气泡的形成机理与气泡表面的不稳定性有关。通过微小通道内的流动沸腾实验发现，当通道长度小于适当长度时，流动压力损失较小，传热系数较高。还发现，如果我们在水中使用一种特殊的溶质，如丁烷，就有可能阻止干涸的发生或延长干涸的位置。通过这些实验研究，可以说，我们可以考虑利用微泡喷射沸腾和微小通道的高效率，高性能的冷却装置。

项目成果

Chaotic Behaviors and Modeling of Bubbles and Boiling

气泡和沸腾的混沌行为和建模

• 发表时间: 2005
• 期刊: Engineering of Complex Phenomena, AIST
• 作者: S.Chiashi;M.Kohno;Y.Takata;S.Maruyama;M.Shoji
• 通讯作者: M.Shoji

Temperature Fluctuation at Twin Cavity in Nucleate Boiling - Wavelet analysis and modeling -

核沸腾中双腔温度波动 - 小波分析和建模 -

• 发表时间: 2006
• 期刊: Int. L. Heat Mass Transfer 受理印刷中(未定)
• 作者: R.Mosdorf;M.Shoji
• 通讯作者: M.Shoji

泡のエンジニアリング(2.3節)

泡沫工程（第 2.3 节）

• 发表时间: 2005
• 作者: M.Tnage;M.Yuasa;S.Takagi;M.Shoji;T.Inoue;庄司正弘
• 通讯作者: 庄司正弘

Microbubbles emission flow boiling in a microchannel and minichannel

• DOI: 10.1115/icmm2004-2385
• 发表时间: 2004
• 期刊: Thermal science and engineering
• 作者: M. Tange;Maki Yuasa;S. Takagi;M. Shoji

Microbubble Emission Boiling : Fundamental Features and Its Possible Application to Microchannel Cooling devices

微气泡发射沸腾：基本特征及其在微通道冷却装置中的可能应用

• 发表时间: 2005
• 期刊: 4th Int.Conference on Transport Phenomena in Multiphase Systems (発表予定)(未定)(6月確定)
• 作者: M.Shoji;M.Tange;M.Watanabe;S.Takagi;M.Yuasa
• 通讯作者: M.Yuasa