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Phase Change Materials
Commercial freezers use electrical heaters to defrost the evaporator periodically. While the defrost cycle is in progress, the refrigeration circuit is turned off and goods increase in temperature. After the defrost cycle is complete, the refrigeration circuit must be re-activated to bring goods down in temperature again.
CrodaTherm™ bio-based phase change materials can be used to capture the rejected heat from the condenser, when in use, and use it to defrost the evaporator. This means the temperature of the freezer is more stable and the energy needed to run the defroster is saved.