Han Shuang, Yang Lixin, Tian Zihao, Yuan Xiaofei, Lu Hongyan
Institute of Thermal Engineering, School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China.
Beijing Key Laboratory of Flow and Heat Transfer of Phase Changing in Micro and Small Scale, Beijing 100044, China.
Entropy (Basel). 2019 Dec 25;22(1):35. doi: 10.3390/e22010035.
With the rapid increase of power densities of electronic components, the traditional heat dissipation method of air forced convection has reached a heat transfer limit. As efficient phase change heat exchangers, vapor chambers have become an important guarantee for the development of high-power electronic components. Aluminum vapor chambers have become the future development trend because they are more lightweight and less expensive. In order to study the suitable simplified model of the aluminum vapor chamber in the radiating system, the testing system is established to test the thermal characteristics of the vapor chamber. First, six simplified models of the vapor chamber are proposed. Then, the thermal characteristics of the simplified models are simulated by STAR CCM+ software. Next, the error of the thermal resistance of the simplified model and the real vapor chamber is analyzed. Finally, a most suitable simplified model is obtained in the cooling system.
随着电子元件功率密度的迅速增加，传统的强制空气对流散热方法已达到传热极限。作为高效的相变热交换器，蒸汽腔已成为高功率电子元件发展的重要保障。铝制蒸汽腔因其更轻、成本更低而成为未来的发展趋势。为了研究辐射系统中铝制蒸汽腔合适的简化模型，建立了测试系统来测试蒸汽腔的热特性。首先，提出了六种蒸汽腔简化模型。然后，利用STAR CCM+软件对简化模型的热特性进行了模拟。接下来，分析了简化模型与实际蒸汽腔热阻的误差。最后，在冷却系统中得到了最合适的简化模型。
