Experimental investigation of the connecting tube effect on a step displacer type two stage pulse tube refrigerator

被引：12

作者：

Lin, Yuzhe ^{[1
]}

Guo, Zhaorui ^{[1
]}

Guo, Zhimin ^{[1
]}

Zhu, Shaowei ^{[1
,2
]}

机构：

[1] Tongji Univ, Sch Mech Engn, Inst Refrigerat & Cryogen, 4800 Caoan Rd, Shanghai 201804, Peoples R China

[2] Tongji Univ, Shanghai Key Lab Vehicle Aerodynam & Vehicle Ther, 4800 Caoan Rd, Shanghai 201804, Peoples R China

来源：

APPLIED THERMAL ENGINEERING | 2020年 / 173卷

基金：

中国国家自然科学基金;

关键词：

Two stage pulse tube refrigerator; Step displacer; Experimental investigation; Phase shifter; INERTANCE TUBE; CRYOCOOLERS; COOLER; IMPACT;

D O I：

10.1016/j.applthermaleng.2020.115229

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Using the step displacer in two stage pulse tube refrigerator has already been proved as a sufficient way to improve the efficiency. In this article, an experimental setup has been manufactured. A no-load temperature of 16.9 K is achieved with a step displacer type gas-coupled pulse tube refrigerator filled with stainless steel mesh. The influence of the connecting tube between pulse tube hot end and displacer on the performance of the refrigerator is investigated. The experimental results show that the phase shifting ability can be adjusted by the connecting tube. The performance of the refrigerator can be optimized by this method. For different rod diameters, there is an optimum connecting tube ratio to get the lowest temperature.

引用

页数：9

共 29 条

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