Utilizing various refrigerants with different boiling points

multicomponent mixed-gases Joule-Thomson refrigerators (MJTRs) are suitable for refrigeration applications at temperatures ranging from liquid nitrogen to the lowest effective refrigeration temperature of the single-stage vapor compression refrigeration system. There are extensive and significant requirements for this refrigeration technology in fields of biomaterials

medicine

energy

material sciences

and even the state security. This paper gives a detailed review of our team's achievements on the MJTR for 20 years

including component selection and thermophysic properties of mixed-refrigerants

recuperator features

cycle configuration optimization

composition shift

as well as developments of -186℃ cryo-chamber and skid-mounted natural gas liquefier.