In an absorption system, where does refrigerant boil?

In an absorption system, the refrigerant boils in the evaporator. The evaporator is the component where the liquid refrigerant absorbs heat from the surrounding environment, causing it to change from a liquid to a gas. This boiling process enables the system to remove heat from the space being cooled, which is a critical function of the refrigeration cycle.

By absorbing heat, the refrigerant effectively lowers the temperature of the surrounding air or fluid. After the refrigerant boils and evaporates, it moves onto the absorber, where it is reabsorbed into a solution. This reabsorption process is crucial for the ongoing cycle of the absorption system, but the actual phase change from liquid to gas, which is referred to as boiling, occurs in the evaporator.