基于热管技术的相变材料强化传热技术进展

Progress in heat transfer enhancement of phase change materials

相变材料以其高蓄能密度成为蓄能领域的研究热点,但由于相变材料导热系数较低其应用受到很大的限制。针对此类现象,综述了微胶囊、金属材料、碳材料及热管技术强化相变材料传热性能的研究,并通过分析总结各种强化相变材料传热的方法的优点及缺陷。研究发现,发现热管与相变材料耦合的优势及潜力,但目前该研究处于初级阶段,仍需大量的研究工作以完善其耦合体系及其强化传热机理。

The sustainable development of energy and the environment has aroused widespread concern. The requirements for energy utilization are getting higher and higher, and efficient heat storage and heat transfer devices are urgently needed. Phase change material has become a hot spot in the field of energy storage with its high energy storage density, but due to the low thermal conductivity, its application has been greatly limited. The methods and research progress of strengthening the thermal conductivity of phase change materials are reviewed. The heat transfer properties of phase change materials reinforced by microcapsules, metal materials and carbon materials are introduced respectively. As a new type of high-efficiency heat transfer device, heat pipe has become the focus of research in the field of heat energy, and it has excellent performance in the field of aerospace, thermal management, phase change heat storage, and has great development prospects. The heat transfer enhancement methods, research progress and application of heat pipes are highlighted. At present, the research on the coupling system of heat pipe and phase change material is at an early stage. And it still requires a lot of research work to perfect the coupling system and its mechanism. The inadequacies in the study of the coupling of heat pipes and phase change materials are proposed and the directions for further study are also put forward.