21-25 July 2019
Connecticut Convention Center, Level 6
US/Eastern timezone

C2Po1D-04 [07]: Design of a two-stage gas-coupled high-frequency multi-bypass pulse tube cryocooler working around 4 K

23 Jul 2019, 09:00
2h
Level 6, Cryo Expo Exhibit Hall ()

Level 6, Cryo Expo Exhibit Hall

Speakers

Liubiao Chen (Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, CAS)Prof. Junjie Wang (Technical Institute of Physics and Chemistry, CAS)

Description

High-frequency pulse tube cryocooler is difficult to obtain lower cooling temperature: to obtain the liquid helium temperature, three-stage or four-stage structure by thermal coupling are currently used. In order to further improve the compactness, a two-stage gas-coupled high-frequency multi-bypass coaxial pulse tube cryocooler has been designed. The simulation results indicate that the designed cryocooler can provide a cooling capacity of 20mW@4.2K with 370W input electrical work. The interaction between structural parameters and operating conditions, as well as some preliminary test results will be presented in this paper.

Primary authors

Dr Xuming Liu (Technical Institute of Physics and Chemistry,Chinese Academy of Sciences) Liubiao Chen (Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, CAS) Dr Xianlin Wu (Chinese Academy of Sciences Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry) Prof. Junjie Wang (Technical Institute of Physics and Chemistry, CAS) Prof. Yuan Zhou (Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, CAS)

Presentation Materials