Cool down time optimization of the Stirling cooler

Cryogenic Engineering Conference 2017

材料科学;物理学

Xia, M.^1 ; Chen, X.P.^1 ; Li, H.Y.^1 ; Gan, Z.H.^2

Department of Infrared Detector, Kunming Institute of Physics, Kunming

650217, China^1

Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou

310027, China^2

关键词: Cooling power;    Cryogenic coolers;    Down time;    Input power;    Stainless steel mesh;    Stirling;    Stirling coolers;    Thermal mass;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/278/1/012043/pdf
DOI  :  10.1088/1757-899X/278/1/012043

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The cooling power is one of the most important performances of a Stirling cooler. However, in some special fields, the cool down time is more important. It is a great challenge to improve the cool down time of the Stirling cooler. A new split Stirling linear cryogenic cooler SCI09H was designed in this study. A new structure of linear motor is used in the compressor, and the machine spring is used in the expander. In order to reduce the cool down time, the stainless-steel mesh of regenerator is optimized. The weight of the cooler is 1.1 kg, the cool down time to 80K is 2 minutes at 296K with a 250J thermal mass, the cooling power is 1.1W at 80K, and the input power is 50W.