In a refrigeration system, what is the function of the compressor?

The function of the compressor in a refrigeration system is to compress and increase the pressure of the refrigerant. This is a crucial step in the refrigeration cycle. When the refrigerant enters the compressor in a low-pressure gas state, the compressor compresses this gas, raising its pressure and temperature. This process is essential because, in order for the refrigerant to release heat during the condensation phase, it must be at a higher pressure than the surrounding environment.

By increasing the pressure of the refrigerant, the compressor enables it to flow through the condenser, where it can release heat and condense back into a liquid. This cycle of compression, condensation, expansion, and evaporation is what allows refrigeration systems to function effectively, maintaining the desired low temperature in a conditioned space. Understanding this role of the compressor is fundamental for anyone involved in the maintenance or design of refrigeration systems.