What is the function of a receiver in a refrigeration system?

The function of a receiver in a refrigeration system is primarily to hold liquefied refrigerant coming from the condenser. As the refrigeration cycle operates, refrigerant vapor passes through the condenser, where it is cooled and turned into a liquid form. The receiver acts as a storage vessel for this liquid refrigerant, ensuring there is a sufficient supply available for the expansion valve or other components that require it in the system. This storage is critical for maintaining proper system operation, allowing the cycle to continue efficiently without interruption.

While the receiver may also play a role in separating any minor amounts of non-condensable gases or preventing oil from traveling through the system, its primary function is to hold and manage the flow of liquefied refrigerant. This ensures that the system can operate at optimal performance levels and avoids issues related to refrigerant starvation.