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Development of high efficiency Stirling-type pulse tube cryocoolers |
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| Authors: | J.Y. Hu W. Dai X.T. Wang Y. Huang |
| Affiliation: | a The Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China b Graduate University of the Chinese Academy of Sciences, Beijing 100049, China |
| Abstract: | Thermoacoustic theory is a powerful tool to understand the working mechanism of regenerative thermodynamic systems. In this paper, a modified thermoacoustic model is employed to design three single-stage Stirling-type pulse tube cryocoolers. The first one (PTC-10) is designed with in-line configuration and the second one (CPTC-10) is designed with co-axial configuration. Both of them are able to provide about 10 W cooling power at 77 K with a relative Carnot efficiency of about 18.6%. The third one (PTC-20), designed with in-line configuration, has a twice cross section area of the PTC-10. It can provide more than 20 W cooling power at 77 K with a relative Carnot efficiency of 22%. |
| Keywords: | Stirling Pulse tube cryocooler Thermoacoustic |
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