Design of the glass pulse-tube cryocooler

Cryogenic Engineering Conference 2017

材料科学;物理学

Jiang, Z.^1 ; Bernhardt, C.^1 ; Pfotenhauer, J.M.^1

Department of Mechanical Engineering, University of Wisconsin-Madison, 1500 Engineering Dr., Madison

WI

53706, United States^1

关键词: Approximate design methods;    Charge pressure;    Conductive porous medium;    Cooling temperature;    Gas temperature;    Glass components;    Inertance tube;    Pulse tube cryocoolers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/278/1/012150/pdf
DOI  :  10.1088/1757-899X/278/1/012150

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

With the purpose of generating the curiosity of the public, a pulse-tube cryocooler with regenerator, pulse-tube, inertance tube and reservoir made of glass has been designed constructed and operated. The dimensions of the glass regenerator have been determined using REGEN3.3 [1] from given parameters of the conductive porous medium inside of the regenerator and a 150K target cooling temperature at the cold head. The geometry of the glass pulse-tube and glass inertance tube has been fixed using an approximate design method [2], and the entire system parameters checked using SAGE [3]. The thickness of each glass component is based on a charge pressure of around 7 bar and a pressure ratio of about 1.35. The dimensions of the after-cooler are calculated using ISOHX [4] assuming a gas temperature of 300 K at the inlet of the regenerator.