关键词: 环路热管, 相变驱动, 可视化, 平板蒸发器

Abstract: To study the driving force of loop heat pipe, a new visual evaporator of flat loop heat pipe was established with phase change space which was used to observe the change of working fluid in the experimental process. One of the main experiments was to study the effect of height of phase change space on starting-time, and the other was to study the effect of heating power on thermal resistance of system. Results showed that the staring-time is not constant in the different height of phase change space, and the same to the thermal resistance of system in different heating powers. When the height of phase change space is 1mm, the starting-time is short and the working fluid cannot be dried up easily. The present study provides a basis for the establishment of closed system and for the creation of new mathematical model of the driving mechanism.

Key words: loop heat pipe, phase change driving, visualization, flat evaporator