小倾角对Ω形弯曲热管传热特性的影响  

Effect of small inclination angle on heat transfer performance of Ω-shaped bending heat pipe

作　　者：王卓 潘宇晖 赵锐 年永乐 程文龙[1] WANG Zhuo;PAN Yuhui;ZHAO Rui;NIAN Yongle;CHENG Wenlong(School of Engineering Science,University of Science and Technology of China,Hefei 230027,China)

机构地区：[1]中国科学技术大学工程科学学院,合肥230027

出　　处：《北京航空航天大学学报》2024年第7期2314-2321,共8页Journal of Beijing University of Aeronautics and Astronautics

基　　金：国家自然科学基金(51876198);安徽省重点研发计划(202004a07020053)。

摘　　要：为研究小倾角对Ω形槽道弯曲热管传热特性的影响,搭建了热管传热性能实验台,基于实验对不同小倾角下热管的温度分布、总热阻、当量导热系数和最大输入功率进行分析。结果表明:在相同输入功率下,倾角为0°和倾角为负的热管壁温均匀性优于倾角为正的热管;倾角为正的热管总热阻最大,倾角为0°和倾角为负的热管总热阻相近;热管倾角为0°时的最大输入功率最高。热管安装和应用中易出现重力倾角偏差,研究结果表明,较小倾角会对Ω形槽道弯曲热管的传热性能造成影响。An experimental platform for studying the heat transfer performance of heat pipes was set up to investigate the effect of a small inclination angle on the heat transfer performance of Ω-shaped bending heat pipes.The temperature distribution,total thermal resistance,thermal conductivity,and maximum heat transfer power of heat pipes with different small inclination angles were analyzed in the experiment.The results show that the wall temperature uniformity of heat pipes with zero and negative inclination angles is better than that of heat pipes with positive inclination angles at the same heating power.The heat pipe with a positive inclination angle has the largest total thermal resistance.The total thermal resistance of heat pipes with zero and negative inclination angles is similar.The maximum heat transfer power of heat pipes with zero inclination angle is the highest.In installation and application,the heat pipe will inevitably face gravity inclination angle deviation.The research results indicate that the small inclination angle can affect the heat transfer performance of Ω-shaped bending heat pipes.

关 键 词：热管 传热 小倾角 热阻 当量导热系数 最大输入功率 

分 类 号：TK172.4[动力工程及工程热物理—热能工程]