Experimental investigation of absorption in upward and downward flow of NH₃-CO₂-H₂O in a mini-channel heat exchanger

Heat pumps can drastically reduce energy requirements in industry. Operating a compression resorption heat pump with an NH₃-CO₂-H₂O mixture has been identified as a promising option that can have an increased performance compared to only NH₃-H₂O. In this paper an important process of the...