Research progress in mixed refrigerants and process optimization of auto-cascade refrigeration systems
An auto-cascade refrigeration system(ACR)has become a research hotspot in the field of cryogenics due to its excellent refrigeration capacity,simple structural design,highly stable operation characteristics and wide application prospects.Based on the working principle of an auto-cascade refrigeration cycle,this paper focused on the current research status and pro-gress of the refrigeration system's mixed refrigerants components and internal components optimization.It is concluded that the use of mixed-quality circulating refrigerant and the auto-cascade process optimization are an effective way to improve the perform-ance of the system.Finally,the future development of the auto-cascade refrigeration cycle system is looked forward to.
Auto-cascade refrigerationMixed working fluidComponent optimizationCycle flow