微重力条件下轴向微槽道热管 传热性能研究.docVIP

微重力条件下轴向微槽道热管 传热性能研究 The research on the heat transfer performance of heat pipe with axial slot in microgravity condition 摘 要 热管是一种传热性极好的人工构件为一般金属材料的数百倍乃至上千倍。它可将大量热量通过很小的截面积远距离地传输而无需外加动力热管具有导热性能好、结构简单、工作可靠、温度均匀等良好性能热管利用蒸发制冷，使得热管两端温度差很大，使热量快速 关键词：微重力；微槽道热管；热电偶；稳态 Abstract Heat pipe is a man of excellent components, it is relying on its own internal work to achieve liquid phase change heat transfer, thousands of times and even hundreds of times than a general metal. It can be a lot of heat through a small cross-sectional area of ??long distance transmission without external power, while thermal conductivity heat pipe has a good, simple, reliable, and uniform temperature, good performance. The main topic is about the study of microgravity conditions, axial micro-channel heat transfer performance, through independent experimental design, the heat transfer performance of heat pipe. Heat pipe is cooling by evaporation, making the heat pipe both ends of a large temperature difference, so that rapid heat transfer. In the experiment by changing the heating film evaporator and condenser cooling power, experiment, the first control film evaporator heating power, varying the condenser cooling, for example, natural cooling and air cooling, data collection through the acquisition system; Similarly, the control of the condenser cooling means the same, change the heat pipe heating power of film to obtain the corresponding data. Data obtained through the analysis, the heat pipe in microgravity the ability to work under poor conditions, and by the film evaporator heating power and cooling condenser side effects, heating plate of the heat pipe power is higher, the increase in evaporator and condenser is faster; condenser cooling fan speed with the upgrade, the lower the temperature does not change when it reaches a certain temperature. Key words: microgravity; micro-channel heat pipe; thermocouple; steady-state 目 录 第一章 绪论……………………………………………………