Experimental study of frosting on horizontal plate

Frosting process on a horizontal plate was experimentally investigated in this paper. This study focuses on several factors affecting the condensate water droplets freezing process and frost layer growth process, i.e. the cooling surface temperature, the air temperature and humidity, and the surface type. The results showed that the condensate droplets are smaller and freeze earlier with lower cooling surface temperature and lower humid air temperature. The water droplets freezing onset time on the hydrophobic surface is about 13 min later than on the bare aluminum surface, which means the frost process on the hydrophobic was delayed. The frost layer grows faster with lower cooling surface temperature and higher air velocity. ©, 2015, Chemical Industry Press. All right reserved.