Speaker
Dr
Lianyou Xiong
(Technical Institute of Physics and Chemistry, CAS)
Description
Recently a prototype of 4.5K helium refrigerator with capacity of 250W cooling power is under developing in Technical Institute of Physics and Chemistry (TIPC), CAS China. The helium refrigerator is a modified Claude cycle refrigerator, two helium turbo expanders were dedicatedly designed and fabricated to meet the requirements of Claude cycle helium refrigerator. Reliable static gas bearings are used to support the expander shafts at speed of 230 krpm. During the commissioning, the adiabatic efficiency of two turbo expanders are about 65%, the cooling capacity of the helium refrigerator is 270W.
Author
Dr
Lianyou Xiong
(Technical Institute of Physics and Chemistry, CAS)
Co-authors
Dr
Nan Peng
(Technical Institute of Physics and Chemistry, CAS)
Dr
Kongrong Li
(Technical Institute of Physics and Chemistry, CAS)
Dr
bin dong
(Technical Institute of Physics and Chemistry, CAS)
Dr
Jiancheng Tang
(Technical Institute of Physics and Chemistry, CAS)
Dr
changlei Ke
(Technical Institute of Physics and Chemistry, CAS)
Prof.
Liqiang Liu
(Technical Institute of Physics and Chemistry, CAS)