Which piece will perform sub-cooling in the mechanical refrigeration cycle?

Sub-cooling occurs in the condenser of a mechanical refrigeration cycle. During this phase, the refrigerant that has already changed from a gas to a liquid is cooled further before it is sent back to the evaporator. This process ensures that the refrigerant is fully condensed and that its temperature is lower than its saturation temperature at the corresponding pressure.

The condenser accomplishes this by transferring heat from the refrigerant to its surroundings, allowing the refrigerant to cool down effectively. The cooled liquid refrigerant is then routed to the expansion device, which prepares it to absorb heat in the evaporator when it changes back to a gas. Proper sub-cooling plays a crucial role in increasing the overall efficiency of the refrigeration cycle, ensuring that the system operates effectively and reliably.