Speaker
Yuwei Sun
(Technical Institute of Physics and Chemistry CAS)
Description
A 4 K Helium Joule-Thomson (JT) refrigeration system based on ejector technology is presented in this paper to enhance the thermodynamic efficiency, which could also decrease the lowest cold head temperature and avoid higher suction pressure of the compressor. This paper studies the influence on the cryocooler performance of ejector parameters using one-dimension numerical simulation. A comprehensive system exergy analysis is also conducted and the loss of each component is analyzed. The performance chart of the JT refrigeration system with an ejector is established after calculation and compared with the system without an ejector, which indicates a 10-20% performance improvement.
Author
Mrs
Yayi Hu
(Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences)
Co-authors
Dr
Xiaotao Wang
(Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences)
Dr
Wei Dai
(Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences)
Mr
Zhaohui Yang
(Lihan Cryogenics)
Mr
Haibing Li
(Lihan Cryogenics)
Prof.
Ercang Luo
(Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences)
Yuwei Sun
(Technical Institute of Physics and Chemistry CAS)
