Cool down time optimization of the Stirling cooler

[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.

[发布机构] Department of Infrared Detector, Kunming Institute of Physics, Kunming; 650217, China^1;Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou; 310027, China^2

[效力级别] 物理学 [学科分类] 材料科学（综合）

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