What is the primary function of a refrigeration compressor?

The primary function of a refrigeration compressor is to compress the refrigerant vapor, reduce its volume, and circulate it throughout the refrigeration system. This process is essential because it raises the pressure and temperature of the refrigerant vapor, allowing it to release heat when it flows through the condenser. By reducing the volume of the vapor, the compressor ensures that there is a continuous flow of refrigerant through the system, enabling the cooling process to occur effectively.

Additionally, the compressor plays a critical role in maintaining the refrigeration cycle. It draws in low-pressure refrigerant gas from the evaporator, where the refrigerant absorbs heat from the surroundings, and compresses it into a high-pressure gas. This step is crucial for establishing the pressure differential necessary for the refrigerant to flow through the system, allowing it to cycle back to the evaporator to absorb more heat.

While filtering and storing refrigerant are important components of the overall refrigeration system, they do not represent the primary function of the compressor. The cooling of the refrigerant occurs after the vapor has been compressed and is in the condenser. Thus, the correct answer highlights the fundamental role the compressor plays in ensuring the effective operation of the refrigeration system.