The thermodynamic characteristics of a Stirling/pulse tube hybrid cryocooler

Guo, Yixuan; Chao, Yijun; Wang, Bo; Li, Haiying; Brandt, Martin; Pfotenhauer, John M.; Gan, Zhihua

doi:10.1016/j.cryogenics.2018.10.011

Cited by 11 publications

(1 citation statement)

References 8 publications

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“…Within certain conditions, the displacer phase θd will actively shift the cooling capacity of two stages As shown in Fig. 3, with an input electric power of 160 W and a displacer phase of 70°, the SPR obtains a cooling capacity of 0.1 W at 20 K plus 2.6 W at 70 K. Under the 160 W input electric power, when the displacer phase θd decreases from 80° to 60°, the first stage cooling capacity decreases from 3.05 W to 1.16 W, and the second stage cooling capacity increases from 0.06 W to 0.16 W. The trend of the experimental data with different displacer phases is consistent with the thermoacoustic model given by Yongxiang Guo [7] and experimental data measured by Raytheon [4,6,8] . Fig.…”

Section: Methodssupporting

confidence: 83%

Test of a 15-20 K Stirling/pulse tube hybrid refrigerator for space applications

Ying

Liu

Jiang

et al. 2023

Earth and Space: From Infrared to Terahertz (ESIT 2022)

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The two stages gas-coupled Stirling/pulse tube refrigerator (SPR), whose first and second stages respectively involve Stirling and pulse tube refrigeration cycles, is a promising spaceborne refrigerator. The SPR has many advantages because of the unique configuration combining each feature of the Stirling and pulse tube refrigerators, such as compact structure, high reliability, and outstanding performance. A SPR-20 has been designed and manufactured. When all of the regenerators are filled with stainless-steel mesh, the SPR-20 can obtain 2.6 W at 70 K plus 0.1 W at 20 K with 160 W total input power. While the second stage regenerator is mixed filled with magnetic material and stainless-steel mesh, the cooling capacity of the SPR-20 can be improved to 2.5 W@70 K plus 0.45 W@20 K with 200 W electric input power plus 17 W displacer input electrical power. Meanwhile, the SPR can obtain 0.32 W at 15 K plus 0.65 W at 65 K with 250 W compressor input power plus 20 W displacer input electrical power. The performance of the developed Stirling/pulse tube hybrid refrigerator (SPR-20) has a relative advantage among 20 K high-frequency refrigerators.

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