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Flow Characteristics and Sound Power Transmission Characteristics of Bellows in Pulse Tube Cryocooler
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Songsong Mu1, 2, Xiaoyu Cui1, Wang Yin2, Zheng Huang2, Zhenhua Jiang2, 3, Lei Ding2, Shaoshuai Liu2, 3, Yinong Wu2, 3
Journal of Refrigeration | 2025, 46(1) : 71 - 78
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Journal of Refrigeration | 2025, 46(1): 71-78
Flow Characteristics and Sound Power Transmission Characteristics of Bellows in Pulse Tube Cryocooler
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Songsong Mu1, 2, Xiaoyu Cui1, Wang Yin2, Zheng Huang2, Zhenhua Jiang2, 3, Lei Ding2, Shaoshuai Liu2, 3, Yinong Wu2, 3
Affiliations
  • 1.School of Energy and Power Engineering, University of Shanghai and Technology, Shanghai, 200093, China
  • 2.Shanghai Institute of Technology and Physics of Chinese Academy of Sciences, Shanghai, 200083, China
  • 3.University of Chinese Academy of Sciences, Beijing, 100049, China
Published: 2025-02-16 doi: 10.12465/j.issn.0253-4339.2025.01.071
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A compressor outlet tube is a transmission component of sound power, and its sound power loss directly affects the performance of pulse tube cryocoolers. Flexible bellows can adjust the relative positions of compressors and cold fingers in applications compared with traditional rigid smooth tubes. This study analyzed the flow characteristics of two types of connected pipes by simulation, and the influence of different types of connected pipes on the performance of the entire machine was verified experimentally to determine the influence of flexible bellows on the cryocooler. The simulation results demonstrated that mixed flow appears at the ripple of the bellows, resulting in greater resistance loss, when compared with a rigid smooth pipe. Under the same inlet parameters, the outlet mass flow and pressure amplitude were lower, and the sound power loss was greater. The experimental results demonstrated that the input power required by the bellows was higher when the cooling capacity was the same. When the cooling temperature was 37.5 K and the cooling capacity was 0.5 Wthe input power of bellows and smooth tubes was 119 W and 112 W, respectively; when the cooling capacity was 3.0 W, the input power of bellows and smooth tubes was 279 W and 259 W, respectively.

Songsong Mu, Xiaoyu Cui, Wang Yin, Zheng Huang, Zhenhua Jiang, Lei Ding, Shaoshuai Liu, Yinong Wu. Flow Characteristics and Sound Power Transmission Characteristics of Bellows in Pulse Tube Cryocooler[J]. Journal of Refrigeration, 2025 , 46 (1) : 71 -78 . DOI: 10.12465/j.issn.0253-4339.2025.01.071
Funding
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  • National Natural Science Foundation Projects(51806231)
Appendix
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Year 2025 volume 46 Issue 1
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Article Info
doi: 10.12465/j.issn.0253-4339.2025.01.071
  • Receive Date：2023-10-18
  • Online Date：2026-03-13
  • Published：2025-02-16
Article Data
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History
  • Received：2023-10-18
  • Revised：2023-11-22
  • Accepted：2024-01-18
Funding
National Natural Science Foundation Projects(51806231)
Affiliations
    1.School of Energy and Power Engineering, University of Shanghai and Technology, Shanghai, 200093, China
    2.Shanghai Institute of Technology and Physics of Chinese Academy of Sciences, Shanghai, 200083, China
    3.University of Chinese Academy of Sciences, Beijing, 100049, China

Corresponding:

Liu Shaoshuai, male, associate researcher, Shanghai Institute of Technology and Physics of Chinese Academy of Sciences, 86-13167065771, E-mail: . Research fields: space cryogenic refrigerator.
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
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Genus		 种数
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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