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

The function of a receiver in a refrigeration system is to collect and store refrigerant. In the refrigeration cycle, the receiver acts as a reservoir for the refrigerant after it has been condensed. This component is essential because it ensures that there is a readily available supply of liquid refrigerant for the system to use as needed. This helps maintain stable pressures and proper functioning of the system.

By holding excess refrigerant, the receiver prevents flood-back to the compressor, which can cause inefficiency or damage. Additionally, the receiver plays a vital role in ensuring that any vapor that may enter the system can be returned to the compressor or be dealt with appropriately. This storage functionality is crucial for the smooth operation of both cooling and heating cycles in various applications, thereby highlighting its importance within the broader refrigeration system.

Other options suggest functions that do not pertain to the receiver's role. The function of releasing heat into the environment is primarily associated with the condenser. Compressing refrigerant is the role of the compressor, while filtering contaminants pertains to a filter-drier component, often found in the system to maintain refrigerant purity.