微通道临界热通量的基础理论与提升技术研究进展  

Research progress on basic theory and improvement technology for critical heat flux of microchannel

作　　者：袁旭东 贾磊 周到 赵盼盼 吴俊峰 王汝金 YUAN Xudong;JIA Lei;ZHOU Dao;ZHAO Panpan;WU Junfeng;WANG Rujin(State Key Laboratory of Compressor Technology,Hefei General Machinery Research Institute Co.,Ltd.,Hefei 230031,Anhui,China;Hefei General Environment Control Technology Co.,Ltd.,Hefei 230031,Anhui,China)

机构地区：[1]合肥通用机械研究院有限公司,压缩机技术国家重点实验室,安徽合肥230031 [2]合肥通用环境控制技术有限责任公司,安徽合肥230031

出　　处：《化工学报》2021年第4期1796-1814,共19页CIESC Journal

基　　金：国家重点研发计划项目(2018YFF0213605,2020YFF0218600);安徽省自然科学基金项目(1808085ME154);安徽省重点研究与开发计划项目(202004a07020017,202004h07020028);合肥通用机械研究院有限公司博士科技基金项目(2019010385)。

摘　　要：临界热通量(CHF)是微通道流动沸腾换热的限制参数之一,当热通量大于CHF时,换热性能急剧恶化,换热设备易发生烧毁与故障,因此CHF对于微通道换热的安全运行具有重要影响。微通道换热是目前电子冷却的主流技术,然而近年来电子设备热通量不断提高,CHF已成为限制微通道应用的关键参数之一。针对微通道CHF的研究进展,详细阐述微通道CHF的形成机理,分析工况参数和通道尺寸对微通道CHF的影响机制,总结微通道CHF的预测模型,详述微通道CHF提升的各类技术方法与原理,探讨学术界观点差异和今后研究方向。该综述为微通道在高热通量条件下安全可靠运行提供了研究借鉴。Critical heat flux(CHF)is one of the limiting parameters of flow boiling heat transfer in microchannels.When heat flux is greater than CHF,the heat transfer performance deteriorates sharply and the heat transfer equipment is prone to burn out and failure.Therefore,CHF has an important impact on the safe operation of microchannel heat transfer.At present,microchannel heat transfer is the mainstream technology of electronic cooling.However,in recent years,the heat flux of electronic equipment has been continuously improved,and CHF has become a key parameter to limit the application of micro-channel.Study progress of microchannel CHF is systematically discussed in this paper.Generating mechanism of CHF of microchannel is explained in details,impact of working conditions and channel size of microchannel on CHF is analyzed,prediction models of microchannel CHF are summarized,technical methods and principles for improving CHF of microchannel are discussed in details,differences of academic viewpoints and the future research direction are discussed.This process provides reference for the safe and reliable operation of microchannels under condition of high heat flux.

关 键 词：微通道 多相流 传热 临界热通量 形成机理 影响因素 预测模型 提升技术 

分 类 号：TK124[动力工程及工程热物理—工程热物理]