Vapor Absorption Test Rig is a self-contained refrigerator working on absorption technology. New Anucool Engineers offers Vapor Absorption Test Rig. New Anucool Engineers is the supplier of a wide range of Water Chiller, Printing Chiller, and Oil Chiller. Vapor Absorption Test Rig is pre-charged with three fluids namely water, ammonia and hydrogen. It uses an electrically operated generator, where, the ammonia vapors dissolved in water are separated and pure ammonia vapors enter the condenser. In the condenser, the high-pressure vapors reject its latent heat to the surroundings and then the vapors are liquefied. The liquid ammoniaÿexpands through expansion device where its pressure and temperature is reduced and cold low-pressure vapor enters the evaporator where it absorbs heat from the space to be cooled and then vaporized ammonia absorbs in water. This strong solution then enters the generator and the cycle repeats.