Ammonia-water absorption cycle

The ammonia-water absorption cycle is a cooling process that uses ammonia as the refrigerant and water as a solvent. In this cycle, ammonia absorbs heat from the area to be cooled, causing it to evaporate and carry away heat. The ammonia vapors are then absorbed into water, which releases heat and becomes rich in ammonia. This mixture is then cooled and the ammonia is separated, ready to repeat the cycle. This system is energy-efficient for large-scale cooling applications, especially where waste heat or low-grade heat sources are available, making it suitable for refrigeration and air conditioning.