Performance of an auto refrigerant cascade refrigerator operating in gas refrigerant supply (GRS) mode with nitrogen–hydrocarbon and argon–hydrocarbon refrigerants

There is a worldwide interest in the development of auto refrigerant cascade (ARC) refrigerators operating with refrigerant mixtures. Both flammable and non-flammable refrigerant mixtures can be used in these systems. The performance of an ARC system with optimum nitrogen–hydrocarbon and argon–hydrocarbon mixtures between 90 and 160 K is presented in this paper.