石墨烯超导热管散热性能实验研究  

Experimental Study on Heat Dissipation Performance of Graphene Superconducting Heat Pipe

作　　者：刘泽珙 LIU Ze-gong(Tsinghua Research Center for Community of Shared Future,School of Social Sciences of Tsinghua University)

机构地区：[1]清华大学社科院人类命运共同体研究中心

出　　处：《化工机械》2024年第2期201-206,299,共7页Chemical Engineering & Machinery

摘　　要：为优化室内地暖的散热效果,应用石墨烯超导冷暖技术,设计石墨烯超导热管,并通过实验研究石墨烯超导热管散热性能。选取石墨烯超导热管、铝极干式热管和传统湿式热管,构建热管实验装置,分别对3种热管的散热性能进行测试,并将测试结果通过数据处理与误差分析方法进行处理。经实验可知:传统湿式热管在热管启动时启动温度上升速度最慢,且在不同充液率下始终保持较低的导热系数、较高的热阻,说明该热管的散热性能较弱;而铝极干式热管在测试时虽然具备一定的散热能力,但依然弱于石墨烯超导热管;在石墨烯超导热管测试过程中,其在不同启动温度下均能迅速达到相应温度,且总热阻较低、导热系数较高,可迅速实现散热。当导管的充液率较高时,热管的冷凝段和蒸发段的温差较低,具有较好的散热效果,且石墨烯超导材料还能够提高热管强化作用率,使热管散热效果更强。For purpose of optimizing heat dissipation effect of indoor floor heating,having graphene superconducting heating and cooling technology applied to design graphene superconducting heat pipe was implemented,including investigating its heat dissipation performance through experiments.In which,having the graphene superconducting heat pipe,aluminum electrode dry heat pipe and the traditional wet heat pipe selected to build a heat pipe experimental device to test their heat dissipation performance,respectively,including having data processing and error analysis methods adopted to process test results.The experimental result shows that,the starting temperature of the traditional wet heat pipe rises slowest when the heat pipe starts,and it always maintains a low thermal conductivity and a high thermal resistance at different liquid-filling rates,which indicates a weak heat pipe’s heat dissipation performance;when the extremely-dry aluminum heat pipe has a certain heat dissipation capacity during the test,it is still weaker than the graphene superconducting heat pipe’s;during testing graphene superconducting heat pipe,it can quickly reach the corresponding temperature at different starting temperatures,and its total thermal resistance becomes low and its thermal conductivity is high,which can quickly realize heat dissipation.Higher pipe’s liquid-filling rate and lower temperature difference between the heat pipe’s condensing section and evaporating section can bring about good heat dissipation effect.The graphene superconducting material can improve the heat pipe’s reinforcement rate and make heat pipe’s heat dissipation effect stronger.

关 键 词：石墨烯 超导热管 散热性能 充液率 启动温度 强化作用率 

分 类 号：TK79[动力工程及工程热物理—流体机械及工程]