What does Evaporation refer to in air conditioning systems?

Evaporation in air conditioning systems refers specifically to the process in which a refrigerant absorbs heat from the indoor air as it changes from a liquid to a gas. This principle is commonly implemented in various components of an air conditioning system, particularly in the Air Handling Unit (AHU). The AHU plays a crucial role in circulating air throughout the building and often contains evaporator coils through which the refrigerant flows. As the refrigerant evaporates, it removes heat from the air that passes over the coils, thereby cooling the air before it is distributed back into the space.

The function of the AHU is integral to the overall operation of the air conditioning system, as it helps manage airflow and regulates temperature and humidity for the comfort of occupants. This context emphasizes how evaporation is fundamental to the cooling process in air conditioning, making the AHU pivotal in facilitating that evaporation process efficiently.