Lithium bromide absorption chiller is one of the most common types of absorption chillers in which lithium bromide plays the role of absorbing water vapor to reduce the pressure in the evaporator chamber.

Lithium bromide is a chemical widely used in absorption chillers. This chemical has a high moisture absorption capacity. Therefore, it is able to absorb the vapors in the system and thus return them to the liquid phase. However, lithium bromide is highly corrosive.