Steam Jet or Ejector Refrigeration
Steam jet refrigeration also generates cooling via thermal compression as adsorption chillers do. The thermal compression does not result, however, from sorption, rather a steam jet compressor is used. The process occurs in two circuits: the injection fluid circuit (hot steam) and the refrigerant circuit (water). The steam jet compressor comprises a drive nozzle, mixing chamber, and diffuser. The pressure energy of the motive steam is converted to flow energy in the nozzle. This enables the intake of refrigerant vapor from the evaporator in the mixing chamber. Energy is extracted from the return water of the cold water system via evaporation and thereby it is cooled.