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

The primary function of a compressor in a refrigeration system is to circulate the refrigerant. The compressor plays a critical role by pumping the refrigerant through the system, facilitating the heat exchange process that is essential for cooling.

When the refrigerant enters the compressor, it is typically in a low-pressure, gaseous state. The compressor increases the pressure of the refrigerant, which raises its temperature and transforms it into a high-pressure gas. This high-pressure gas is then sent to the condenser, where it releases heat and condenses into a liquid.

By maintaining the flow of refrigerant throughout the system, the compressor ensures that the cycle continues, enabling the refrigeration system to effectively absorb heat from the designated area and expel that heat outside. This circulation is vital as it allows for consistent cooling, making the compressor an essential component of the refrigeration cycle.

The other options, while related to refrigeration processes, do not accurately describe the primary role of the compressor. Absorbing heat (option A) is primarily done by the evaporator, cooling the air (option B) is the result of the entire system's operation including various components, and storing refrigerant (option D) does not align with the compressor's active role in circulation and pressure management