What is the main function of a compressor in a refrigeration system?

The main function of a compressor in a refrigeration system is to compress the refrigerant for condensation. In a refrigeration cycle, the compressor draws in low-pressure vapor refrigerant from the evaporator and then compresses it to a high-pressure vapor. This increase in pressure raises the temperature of the refrigerant, allowing it to release heat efficiently when it reaches the condenser. By preparing the refrigerant in this way, the compressor facilitates the heat exchange process that is essential for the refrigeration cycle to function effectively.

While the circulation of the refrigerant is an important aspect of the system, that responsibility lies not solely with the compressor but rather with the entire system’s components working together. Likewise, lowering the temperature of the refrigerant or removing moisture are functions performed by other parts of the system, such as the evaporator and driers, respectively. Thus, the primary role of the compressor is to facilitate the compression of the refrigerant for the condensation process, making option C the correct answer.