In this paper, it is believed that the heat transfer mechanism of phase change in a capillary tube belongs to liquid film conduction and surface evaporation.

• 本文认为毛细管的相变传热机理为液膜的导热和表面蒸发；表面蒸发受蒸汽温度、汽液界面的温度以及汽液压力差的共同控制。