The influence of pressure ratio on the regenerator performance

Cryogenic Engineering Conference 2017

材料科学;物理学

Lin, Y.^2 ; Zhu, S.^1,2

Shanghai Key Lab of Vehicle Aerodynamics and Vehicle Thermal Management Systems, Tongji University, Cao'an Road 4800, Shanghai

201804, China^1

Institute of Refrigeration and Cryogenics, School of Mechanical Engineering, Tongji University, Cao'an Road 4800, Shanghai

201804, China^2

关键词: CFD simulations;    Inertance tube;    Mass flow rate;    Multi stage;    Operating pressure;    Pressure ratio;    Pressure waves;    Pulse tube refrigerators;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/278/1/012168/pdf
DOI  :  10.1088/1757-899X/278/1/012168

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

For a multi-stage pulse tube refrigerator with displacer, improving the regenerator efficiency is important. A displacer can get higher operating pressure ratio compared with inertance tube. The pressure ratio and porosity influence on the regenerator performance with is discussed, and CFD simulation is done on a two-stage pulse tube refrigerator with displacer to show that mass flow rate and pressure wave relation in the regenerator can be realized by a step-displacer.