01 September 2013

Control and inhibition of frost crystal formation and growth

A mechanical frost removal method is proposed here with the aim of further improving energy saving techniques.
The method is able to remove frost on a cooling surface while maintaining its temperature below 0 °C. To be able
to implement this method, it is important to be able to quantify the cohesive force of a frost layer, and to reduce
it. We machined micro-grooves on a metallic cooling surface to modify the surface characteristics, succeeding in
reducing the frost formation on the cooling surface under natural convection.