What is the primary role of a compressor in the refrigerant cycle?

The primary role of a compressor in the refrigerant cycle is to compress the refrigerant, raising its pressure and temperature for circulation. In the refrigeration cycle, the compressor is essential because it takes the low-pressure, low-temperature refrigerant vapor and compresses it into a high-pressure, high-temperature vapor. This change is crucial as it allows the refrigerant to flow through the system, enabling heat exchange processes necessary for cooling.

Once the refrigerant is compressed, it can then move to the condenser where it dissipates heat and changes into a liquid at high pressure. This step is vital for the overall function of the cooling system, as it ensures that the refrigerant is in the right form and condition to absorb heat from the environment when it returns to the evaporator.

The compressor's function is not to cool or store refrigerant, nor does it measure efficiency. Instead, it is the component tasked with maintaining the refrigerant's circulation and pressure, making it a central element of the refrigeration cycle.