Abstract

Many devices are using transparent heaters and they often face problems due to fogging or icing on the surface of the transparent heater (TH). The fogging or icing is mainly due to the droplet that gets deposited over the surface of the transparent heater. If the evaporation of these droplets from the surface of TH gets obstructed, then only the fogging or icing starts. To develop an effective defogging, we require the effective evaporation rate of the droplet. Many studies have already been done on the dependence of evaporation on the various factors of the substrate as well as the ambient conditions. In this paper, the evaporation droplet characteristics of the transparent heater are analysed. Theoretical and experimental investigations on droplet evaporation are reviewed. The dependence of droplet evaporation time and temperature distribution on transparent heater coating properties are studied. Finally, the role of material coating on defogging and defrosting properties of transparent heaters are investigated and discussed. Also, the dependence of surface wettability of transparent heaters on the droplet evaporation property has been investigated.

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