论文部分内容阅读
提出了一种具有整体式微槽群吸液芯的新型平板热管。该新型平板热管具有散热效率高、机械强度高、制造工艺简单、重量轻、成本低等优点。建立预测平板热管传热传质特性的数学模型,获得了平板热管内蒸汽和液体的温度场、压力场以及速度场。对新型平板热管的传热性能进行实验研究,结果发现,新型微槽群平板热管的导热系数可达到其管壳材料导热系数的12.3倍,并且具有良好的均温特性。数值模拟的结果与实验测量结果吻合良好。
A new type of flat panel heat pipe with integrated micro-groove group suction wick is proposed. The new flat heat pipe has the advantages of high heat dissipation efficiency, high mechanical strength, simple manufacturing process, light weight and low cost. A mathematical model for predicting the heat and mass transfer characteristics of flat heat pipes was established. The temperature field, pressure field and velocity field of steam and liquid in the plate heat pipe were obtained. The experimental study on the heat transfer performance of the new flat heat pipe shows that the thermal conductivity of the new microgroove flat heat pipe can reach 12.3 times of the thermal conductivity of the shell and tube material and has good average temperature characteristics. The results of numerical simulation are in good agreement with the experimental results.