A spiral flow channel evaporator designed for the space hybrid <sup>4</sup>He Joule-Thomson cryocooler
Abstract The 4 He Joule-Thomson cryocooler (JTC) utilizes the Joule-Thomson (JT) effect of 4 He to typically achieve the temperature of about 4.5 K. When the 4 He JTC obtains the temperature of about 4.5 K, the working fluid behind the JT impedance is a two-phase fluid and has a high velocity. In addition, the pressure of the working fluid behind the JT impedance must be below 130.23 kPa to obtain <4.5 K. Thus, it is crucial for the low-pressure, high-speed two-phase flow to have a low flow resistance in the evaporator. The evaporators used in the 4 He JTC before are filled with copper wire screens, which have a large flow resistance. Thus, considering no gravity in space, a new evaporator using centrifugal force with spiral flow channels is designed, manufactured, and applied in the hybrid 4 He JTC.
Authors
- Yanjie Liu (ORCID: https://orcid.org/0000-0003-3948-1246)
- Zijie Pan (ORCID: https://orcid.org/0009-0006-1517-0557)
- Guotong Hong
- Jianguo Li (ORCID: https://orcid.org/0000-0001-9757-9765)
- Jingtao Liang (ORCID: https://orcid.org/0000-0002-7397-4135)
- Ziyao Liu (ORCID: https://orcid.org/0000-0002-0621-8073)
- Jia Quan
- Yuexue Ma
Institutions
- Chinese Academy of Sciences (CN)
- Technical Institute of Physics and Chemistry (CN)
- University of Chinese Academy of Sciences (CN)
Publication Details
- Journal
- IOP Conference Series Materials Science and Engineering
- Published
- 2025-05-01
- DOI
- https://doi.org/10.1088/1757-899x/1327/1/012159
- Primary Topic
- Advanced Thermodynamic Systems and Engines
- Type
- article
- Field-Weighted Citation Impact
- 0.00