scholarly journals Experimental Study of an Aerospace Low Temperature Refrigerator Cooled by a Pulse-tube Cryocooler

2015 ◽  
Vol 67 ◽  
pp. 398-404 ◽  
Author(s):  
Jiajia Wen ◽  
Yinong Wu ◽  
Ankuo Zhang ◽  
Baoyu Yang ◽  
Hua Zhang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Low Temperature ◽  
Pulse Tube ◽  
Pulse Tube Cryocooler

Numerical and experimental study of partly tapered pulse tube in a pulse tube cryocooler

2020 ◽  
Vol 120 ◽  
pp. 474-480
Author(s):  
Cungang Yan ◽  
Yibing Zhang ◽  
Jian Qiu ◽  
Yanyan Chen ◽  
Xiaotao Wang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Pulse Tube ◽  
Pulse Tube Cryocooler

Theoretical and experimental investigation of pressure drop and refrigeration effect in pulse tube cryocooler

2015 ◽  
Vol 230 (11) ◽  
pp. 1910-1920
Author(s):  
AD Badgujar ◽  
MD Atrey
Keyword(s):  
Pressure Drop ◽  
Low Temperature ◽  
Mesh Size ◽  
Input Power ◽  
Design Parameters ◽  
Experimental Investigations ◽  
Pulse Tube ◽  
Isothermal Model ◽  
Research Activities ◽  
Pulse Tube Cryocooler

The design of a highly efficient pulse tube cryocooler (PTC) is a subject of recent research activities. The PTC performance depends on various operating and design parameters. Regenerator is one of the very important components of the PTC which decides the low temperature that the PTC can attain. Efficiency of regenerator should be high enough, 96% or above, in order to reach very low temperature while the pressure drop in the regenerator is one of the parameters which needs to be analysed in detail. In the present work, theoretical and experimental investigations are carried out on two different single stage U type PTC. The volumes of regenerators and pulse tubes, in both the cases are kept same while the length to diameter (L/D) ratios of regenerators are changed. Investigations are carried out on these PTC with respect to pressure drop in the regenerator and net refrigeration effect obtained from the PTC at 80 K. The pressure drop increases from 0.29 bar to 2.07 bar with an increase in L/D ratio from 1.93 to 9, resulting in decrease in refrigeration effect from 6.1 W to 1.7 W at 80 K with 300 W input power. The study is further extended to understand the effect of coarse size stainless steel mesh size in the regenerator. Coarse size meshes filled up to 60% of regenerator length improved the refrigeration effect from 1.7 W to 2.8 W; however, further filling degrades the performance of the PTC. The experimental results are compared with theoretical results obtained by Sage software and Isothermal model.

Experimental study of a cascade pulse tube cryocooler with a displacer

Cryogenics ◽  
2018 ◽  
Vol 95 ◽  
pp. 69-75
Author(s):  
Jingyuan Xu ◽  
Jianying Hu ◽  
Jiangfeng Hu ◽  
Limin Zhang ◽  
Ercang Luo ◽  
...  
Keyword(s):  
Experimental Study ◽  
Pulse Tube ◽  
Pulse Tube Cryocooler

scholarly journals Experimental study on a 20W/80K high frequency pulse tube cryocooler

2020 ◽  
Vol 755 ◽  
pp. 012038
Author(s):  
Xuming Liu ◽  
Liubiao Chen ◽  
Xianlin Wu ◽  
Jue Wang ◽  
Yuan Zhou ◽  
...  
Keyword(s):  
Experimental Study ◽  
High Frequency ◽  
Pulse Tube ◽  
Pulse Tube Cryocooler ◽  
Frequency Pulse
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