Ice Formation of Solution and Its Removal Phenomena on Horizontal Cooled Surface

Effects of Plate Thickness and Surface Material

Abstract

Experimental studies for ice removal phenomena of ethylene glycol solution on a horizontal polyvinyl-chloride plate have been performed. The effects of plate thickness and surface material on the ice removal phenomena are examined. It is shown that the optimum plate thickness for the ice removal exists and that the onset value of cooling heat flux is the largest for the plates of 1.O-1.5mm in thickness. It is found that the ice removal phenomena can occur on the metallic surface. However, the value of the onset of cooling heat flux becomes small for the metallic surface, because the ice forms in the shape of large sheet due to the large thermal conductivity. It is also found that plate material, which can maintain local temperature difference on plate surface, is preferable for the ice removal phenomena.