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

The function of a receiver tank in a refrigeration system is to store excess refrigerant and ensure a consistent supply to the expansion device. This is crucial because during the operation of a refrigeration cycle, the amount of refrigerant in the system can vary due to changes in state and pressure. The receiver tank acts as a buffer that accommodates these fluctuations by holding extra refrigerant, allowing for smooth operation and maintaining a steady flow to the expansion device.

With this storage capability, the receiver prevents the expansion device from being starved or flooded, which can lead to inefficiencies or damage to the system. By maintaining a consistent supply of refrigerant, the receiver tank plays a vital role in the overall efficiency and stability of the refrigeration cycle. While other components may control temperature or pressure, the primary role of the receiver is focused on refrigerant storage and supply management.