What type of system component is an evaporator?

An evaporator is specifically designed to absorb heat from the surroundings, which causes the refrigerant inside it to evaporate. When a refrigerant enters the evaporator as a low-pressure liquid, it absorbs heat from the environment (such as the indoor air in an air conditioning system), which increases its temperature and allows it to change from a liquid to a vapor. This process is essential for cooling, as the evaporator essentially removes heat from the space being cooled.

The other options refer to different components of the refrigeration cycle. One deals with the role of the compressor, which increases the pressure of the refrigerant, and another pertains to condensation, which occurs in the condenser where the refrigerant releases heat and transforms back into a liquid. Understanding the unique function of the evaporator is crucial for comprehending how refrigeration and air conditioning systems operate effectively.