论文信息 - Experimental research of low-temperature throttling refrigerator for cryoconservation of medical and biological objects

Experimental research of low-temperature throttling refrigerator for cryoconservation of medical and biological objects

Results of experimental research of low-temperature multicomponent mixed-refrigerant throttling refrigerator are given. Appliance of refrigerator in new domestic-made ultralow-temperature freezer for cryoconservation and long-term storage of medical and biological objects at temperature minus 150°C is described. Within experimental research, test bench with development prototype of ultralow-temperature medical freezer is made. Experimental and theoretical studies are compared. Availability and amount of local composition shift is defined. Ways to improve simulation model and increase energy efficiency of cryostatting systems are determined.

[1] Li Zhao,et al. Experimental research on the influence of system parameters on the composition shift for zeotropic mixture (isobutane/pentane) in a system occurring phase change , 2016 .

[2] G. Venkatarathnam,et al. Relationship between composition of mixture charged and that in circulation in an auto refrigerant cascade and a J-T refrigerator operating in liquid refrigerant supply mode , 2017 .

[3] Jinping Liu,et al. A strategy to optimize the charge amount of the mixed refrigerant for the Joule–Thomson cooler , 2016 .

[4] G. Venkatarathnam,et al. Occurrence of Dry-Out Phenomenon in an Auto Refrigerant Cascade Refrigerator Operating With Zeotropic Mixtures , 2017 .

[5] M. Gong,et al. Research on the change of mixture compositions in mixed-refrigerant joule-thomson cryocoolers , 2002 .

[6] N. Narasimhan,et al. A method for estimating the composition of the mixture to be charged to get the desired composition in circulation in a single stage JT refrigerator operating with mixtures , 2010 .