A refrigeration cycle is a process used to remove heat from a designated area, making it cooler. This cycle typically involves four main components: a compressor, a condenser, an expansion valve, and an evaporator. The cycle begins when the compressor compresses a refrigerant gas, raising its pressure and temperature. The hot gas then moves to the condenser, where it releases heat and turns into a liquid. Next, the liquid refrigerant passes through the expansion valve, where it experiences a drop in pressure, causing it to cool. This cold refrigerant then enters the evaporator, absorbing heat from the surrounding area and cooling it down. The cycle repeats as the refrigerant returns to the compressor.