Investigation of breakthrough curve of 10K cryogenic adsorber in helium refrigerator

26th International Cryogenic Engineering Conference & International Cryogenic Materials Conference 2016

材料科学;物理学

Zou, Longhui^1,2,3 ; Feng, Guochao^1,2,3 ; Xu, Peng^1,2 ; Liu, Huiming^1 ; Gong, Linghui^1,2

Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing

100190, China^1

State Key Laboratory of Technologies in Space Cryogenic Propellants, Beijing

100190, China^2

University of Chinese Academy of Sciences, Beijing

100049, China^3

关键词: Adsorbers;    Adsorption data;    Break through curve;    Carrier gas;    Cryogenic engineering;    Helium refrigerators;    Nonlinear dispersion;    Plug flow models;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/171/1/012017/pdf
DOI  :  10.1088/1757-899X/171/1/012017

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

High pure quality helium is required in helium refrigerator and cryogenic adsorber is essential in cryogenic engineering system, while there is a lack of cryogenic adsorption data below 20K which causes inconvenience when it comes to the design of cryogenic adsorber. The paper mainly deals with the design of a 10K cryogenic adsorber in a helium refrigerator which works at 250W@4.5K. Isothermal and nonlinear dispersion plug flow model is built to investigate the breakthrough curve of trace hydrogen with helium being the carrier gas. It can help in lateral design of cryogenic adsorber.