A high efficiency coaxial pulse tube cryocooler operating at 60 K

被引：11
|
作者：
Wang, Nailiang [1 ,2 ]
Zhao, Miguang [1 ,2 ]
Ou, Yangyang [1 ,2 ]
Zhu, Qianglong [1 ]
Wei, Lingjiao [1 ]
Chen, Houlei [1 ,2 ]
Cai, Jinghui [1 ,2 ]
Liang, Jingtao [1 ,2 ]
机构：
[1] Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Space Energy Convers Technol, Beijing 100190, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100190, Peoples R China
来源：
CRYOGENICS | 2018年 / 93卷
基金：
中国国家自然科学基金;
关键词：
Pulse tube cryocooler; Coaxial; Infrared detector; 60; K;
D O I：
10.1016/j.cryogenics.2018.05.006
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In recent years, improved efficiency of pulse tube cryocoolers has been required by some space infrared detectors and special military applications. Based on this, a high efficiency single-stage coaxial pulse tube cryocooler which operates at 60 K is introduced in this paper. The cryocooler is numerically designed using SAGE, and details of the analysis are presented. The performance of the cryocooler at different input powers ranging from 100 W to 200 W is experimentally tested. Experimental results show that this cryocooler typically provides a cooling power of 7.7 W at 60 K with an input power of 200 W, and achieves a relative Carnot efficiency of around 15%. When the cooling power is around 6 W, the cryocooler achieves the best relative Carnot efficiency of around 15.9% at 60 K, which is the highest efficiency ever reported for a coaxial pulse tube cryocooler.
引用
收藏
页码：48 / 50
页数：3
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