Defrosting Methods in Refrigeration
Refrigeration Defrost
This article is intended to introduce the defrosting methods in refrigeration equipment. More specifically in freezers. The majority of all freezers have a defrost cycle of some sort. In general the sequence of operation is the same, although components differ from unit to unit in many cases. We will explore the defrost cycle and the why it is necessary for freezers to have them. By the end of reading this you should a basic understanding of why defrost cycles are necessary, the primary methods of defrosting, as well as how they are initiated and how they are terminated.
Understanding Refrigeration Defrost Cycles – Why it’s Needed
The basic principle of refrigeration is to remove heat from the desired space or product, then get rid of the absorbed heat outside of the refrigerated area. The component responsible for absorbing the heat from the refrigerated area is called the evaporator coil. This component is nothing more than multiple loops of copper and aluminum with a fan motor to move air through it. The idea is to allow low temperature refrigerant, generally in the negative degrees, to absorb the heat from the air traveling through the evaporator coil. Continue reading “Defrosting Methods in Refrigeration”