本文在强迫对流凝华结霜实验系统上,进行水蒸汽凝华结霜气固相变传热的实验研究。对霜的形成、结晶生长及霜的结构特征进行了显微观测和摄影;测量了不同条件下动态霜层厚度及其对热流率变化的影响,本文的实验结果为水蒸汽凝华结霜传热传质物理模型的建立和气固相变传热传质的研究提供依据。 In this paper, forced convection condensate frost experimental system, experimental study of steam condensate frost gas-solid phase transition heat transfer. The formation of frost, the growth of crystal and the structural features of frost were observed microscopically and photographed. The thickness of dynamic frost layer and its influence on the change of heat flux under different conditions were measured. The experimental results of this paper are as follows: The establishment of physical model of heat and mass transfer and the study of heat and mass transfer of gas-solid phase transformation provide the basis.