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

页码：48 / 50

页数：3

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