• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2018, Vol. 54 ›› Issue (6): 175-181.doi: 10.3901/JME.2018.06.175

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Simulation and Experimental Verification of a 13 W@80 K High Capacity Pulse Tube Cryocooler to be Used in Space

WANG Nailiang1,2, ZHAO Miguang1, CHEN Houlei1, LIANG Jingtao1, CAI Jinghui1   

  1. 1. Key Laboratory of Space Energy Conversion Technologies, Technical Institute of Physics and Chemistry, CAS, Beijing 100190;
    2. University of Chinese Academy of Sciences, Beijing 100049
  • Received:2017-02-19 Revised:2017-08-25 Online:2018-03-20 Published:2018-03-20

Abstract: With the development of space technology, the infrared detectors have urgent demands on the high capacity cryocooler at 80 K. Aiming at improving the cooling power, a high capacity coaxial pulse tube cryocooler model with the Sage is built, and the size of the regenerator, pulse tube and the combinations of inertance tubes are optimized. Then, an entire pulse tube cryocooler is designed, manufactured and tested. And it turns out to be that the experimental results are very close to the analytical results. At present, this coaxial pulse tube cryocooler is able to provide cooling power of 13 W at 80 K with the input electrical power of 300 W, and achieves around 11.9% of Carnot efficiency at 80 K.The engineering prototype has been developed for a space program.

Key words: 80 K, high capacity, pulse tube, simulation, space

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