Icing characteristic is important for refrigeration

freezing desalination and chemical engineering. A new freezing method is proposed in this paper

which is driven by humidity difference in 0℃ environment.The evaporation-refrigeration of liquor driven by absolute humidity difference in zero centigrade was studied.Based on heat and mass balance

an unsteady-state thermodynamic model was established with movement characteristic of icing on the surface of liquor

which could simulate icing development under different conditions.The effects of absolute humidity difference

airflow velocity and mass diffusion coefficient on icing development were analyzed.The results indicate that above factors have evident effects on the liquor evaporation-refrigeration.The model and results will provide a theoretical basis and guidance for liquor evaporation-refrigeration driven by absolute humidity difference and its applications.