The Stirling cryogenic refrigeration cycle is a closed cycle, which means that the cryogenerator working gas (which is Helium gas) never comes into contact with the substance (gas or liquid) being cooled. ... The Stirling cryogenerator is extremely efficient, especially when compared to other cryogenic processes.
The Stirling cryogenic refrigeration cycle is a closed cycle, which means that the cryogenerator working gas (which is Helium gas) never comes into contact with the substance (gas or liquid) being cooled. ... The Stirling cryogenerator is extremely efficient, especially when compared to other cryogenic processes.