Research on Stirling Cooler for High Operation Temperature Infrared Detector

被引：0

作者：

Ding, Xupeng ^{[1
,2
]}

Wang, Xiaotao ^{[1
,3
]}

Zhang, Yibing ^{[3
]}

Wang, Yanan ^{[1
]}

Dai, Wei ^{[1
,2
]}

Li, Haibing ^{[3
]}

机构：

[1] The Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Beijing,100190, China

[2] University of Chinese Academy of Sciences, Beijing,100049, China

[3] Lihan Cryogenics CO., Ltd, Guangdong, Shenzhen,518055, China

来源：

Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics | 2024年 / 45卷 / 02期

关键词：

Compressors - Cooling - Cooling systems - Efficiency - Impedance matching (electric) - Pistons;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Stirling cooler is the main cooling source for high operation temperature infrared detector. In recent years, with the continuous development of infrared detection technology, the cooling temperature of Stirling cooler is expected to be further increased, which brings the possibility to improve the efficiency and compactness of the Stirling cooler and reduce its weight. The decrease of the temperature ratio and the existence of the displacer of the Stirling cooler make the impedance phase around the compressor piston close to 90◦, and the impedance matching between the compressor and the cold finger becomes more difficult. At present, there is a lack of in-depth research on the micro Stirling cooler at temperature zone above 160 K. In order to meet the requirements of the infrared detector on the compactness and high efficiency of the cooler in the high operation temperature region, the impedance matching characteristics of a minor Stirling cooler with a cooling temperature of 220 K are studied, the diameter of compressor piston is increased from 8.5 mm to 10.5 mm. The structural and operating parameters are optimized on this basis. When the ambient temperature changes within −20∼60°C, the power consumption of the compressor is less than 8 W to obtain the cooling power of 2 W@220 K. The relative Carnot efficiency reaches 10.4% and 12.4% at 25°C and 60°C, respectively. © 2024 Science Press. All rights reserved.

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页码：378 / 386