What are the 3 laws of refrigeration?

1. Energy cannot be created or destroyed, it can only be transferred. This means that the heat removed from the refrigerated space must be transferred to a higher temperature location.

2. Heat flows from a higher temperature to a lower temperature. This is why the evaporator coil in a refrigerator is located in the refrigerated compartment, where it absorbs heat from the air, causing it to cool down. The condenser coil is located outside the refrigerator, where it transfers the heat to the surrounding air.

3. The amount of heat that can be transferred is determined by the temperature difference between the two locations. This is why it is important to keep the evaporator and condenser coils clean, so that they can transfer heat efficiently.