21-25 July 2019
Connecticut Convention Center, Level 6
US/Eastern timezone

C2Po2A-03 [23]: Design and Commissioning of a 700W@3K sub-cooled helium test facility

23 Jul 2019, 13:30
2h
Level 6, Cryo Expo Exhibit Hall ()

Level 6, Cryo Expo Exhibit Hall

Poster Presentation C2Po2A - Test Facilities

Speaker

Dr XiaoFei Lu (Institute of Plasma Physics,Chinese Academy of Sciences)

Description

In order to increase the magnetic field and temperature margin of superconducting magnets, a test facility of a 700W@3K sub-cooled helium was proposed to decrease the operation temperature from the 4.5K saturated helium to the 3K sub-cooled helium. The process flow of 3K sub-cooled helium test facility has been designed with two cold compressors arranged in series to provide 700W@3K sub-cooled helium by decompressing of saturated liquid helium from 1.2 bar to 24kPa. This 3K sub-cooled test facility has been constructed and operated successfully to cool the 4.5K saturated helium to the 3K sub-cooled helium. The commissioning results indicated that this test facility could provide 760W@3K sub-cooled helium. The start-up process and steady-state operations of this 3K sub-cooled helium test facility were introduced, descripting with the experiment data. The thermodynamic parameters and performances of these two cold compressors were analysed and compared with the designed values in a good agreement. The rotation speeds and vibrations during the transient state and stable state running were also analysed.

Primary authors

Prof. Qiyong Zhang (Institute of Plasma Physics,Chinese Academy of Sciences) Dr Anyi Cheng (Institute of Plasma Physics,Chinese Academy of Sciences ) Dr Zhiwei Zhou (Institute of Plasma Physics,Chinese Academy of Sciences) Dr Zhigang Zhu (Institute of Plasma Physics,Chinese Academy of Sciences) Mrs Shanshan Li (Institute of Plasma Physics,Chinese Academy of Sciences ) Dr XiaoFei Lu (Institute of Plasma Physics,Chinese Academy of Sciences)

Presentation Materials

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