| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5444055 | Cryogenics | 2017 | 7 Pages |
Abstract
A 1.22â¯kg coaxial miniature pulse tube cryocooler (MPTC) has been fabricated and tested in our laboratory to provide cooling for cryogenic applications demanding compactness, low mass and rapid cooling rate. The geometrical parameters of regenerator, pulse tube and phase shifter are optimized. The investigation demonstrates that using higher mesh number and thinner wire diameter of stainless steel screen (SSS) can promote the coefficient of performance (COP) when the MPTC operates at 120â¯Hz. In this study, the 604 mesh SSS with 17â¯Î¼m diameter of mesh wire is constructed as filler of regenerator. The experimental results show the MPTC operating at 120â¯Hz achieves a no-load temperature of 53.5 K with 3.8 MPa charging pressure, and gets a cooling power of 2â¯W at 80 K with 55 W input electric power which has a relative Carnot efficiency of 9.68%.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Huiqin Yu, Yinong Wu, Lei Ding, Zhenhua Jiang, Shaoshuai Liu,