-
Renjun Xue (State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences)18/11/2021, 10:00Poster
Cryogenic system plays a vital role in the development of magnet technology. Especially for superconducting magnet，it would be in more widespread use now if it were not for the problems associated with the cryocoolers or cryostats required to cool down those superconducting devices or facilities.
Go to contribution page
For a variety of high-Tc superconducting magnet applications such as energy storage, generators... -
Dr Yuko Shiroyanagi (Argonne National Laboratory)18/11/2021, 10:00Poster
A 4.8-m-long cryostat has been developed to cool a pair of 1.9-m-long planar superconducting undulator magnets (SCUs). The final design and the thermal model of this cryocooler-cooled LHe-based cryostat has been completed. The cryostat is fabricated and a preliminary cool-down test has been performed. This paper presents a comparison between measured and calculated thermal performance of the...
Go to contribution page -
Koji Kamiya (National Institute for Materials Science)18/11/2021, 10:00Poster
NIMS has started design of a magnetic refrigerator to cool quantum computers. As well known, quantum computer is bringing a revolution to the world of super computers. In general, 3He-4He dilution refrigerators are used to cool the quantum computers at operating temperature below 100mK. However, dilution refrigerator uses a lot of helium 3, that is very expensive these days. On the other hand,...
Go to contribution page -
Kai Zhang ([1]Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China [2]University of Science and Technology of China, Hefei 230026, China)18/11/2021, 10:00Poster
A HTS conductors test facility can be inserted in a 19.5 T @200 mm bore resistive magnet and operating temperature ranges from 4.5 K to 50 K with current up to 100 KA is under design. A superconducting transformer with a 200 A primary winding composed of immersion cooled NbTI conductors and a 100 kA secondary winding composed of force-flow cooled CICC as the current supply for HTS sample....
Go to contribution page -
Mr Xudong Wang ((Institute of Modern Physics, Chinese Academy of Sciences)18/11/2021, 10:00Poster
In order to meet the normal operation of HECRAL (Hybrid superconducting Electron Cyclotron Resonance ion source with Advance in Lanzhou) superconducting magnet, a cryostat in the form of immersed in liquid helium was designed, which integrated two two-stage GM cryocoolers, helium tank, thermal shield, outer dewar, suspension structures, maintenance tower, binary current leads, corresponding...
Go to contribution page -
Gi-Dong Nam (Changwon National University)18/11/2021, 10:00Poster
Recently, energy production and cooling technology using hydrogen has been developed worldwide. In particular, the ortho-para conversion process, which was a problem in hydrogen liquefaction, was overcome through the development of catalysts. Hydrogen has been an attractive material as a refrigerant due to its low liquefaction point and high thermal conductivity. In superconducting...
Go to contribution page -
Roger Rabehl (Fermilab)18/11/2021, 10:00Poster
The Fermilab horizontal test stand previously used for testing the LHC inner triplet quadrupoles has been upgraded to test cryo-assemblies for the HL-LHC upgrade. The test requirements of these new cryo-assemblies required additional capabilities of the test stand cryogenic system, including controlled cool-down and warm-up, helium recovery after a quench, and operation at higher pressures. ...
Go to contribution page -
Dong-Woo Ha (Korea Electrotechnology Research Institute)18/11/2021, 10:00Poster
As the use of renewable energy increases in the future, hydrogen production is predicted to increase significantly. As the amount of hydrogen used increases, it is more cost-effective to transport in liquid hydrogen state than to transport in high pressure gas form. So, the more liquid hydrogen is used, the greater the opportunity for the high-temperature superconducting coil to cool the...
Go to contribution page -
Mr Yodai Okazaki (Tokyo Institute of Technology)18/11/2021, 10:00Poster
A refrigerant circulation cooling system for a HTS (High Temperature Superconducting) coil shows better cooling performance than a heat conduction cooling system when the distance between a cryo-cooler and the HTS coil becomes large because the temperature gradient between the coil and the cryo-cooler becomes small. By combining this excellent cooling system with magnetic refrigeration...
Go to contribution page -
Liang Guo18/11/2021, 10:00Poster
with the development of the preparation technology of high temperature superconducting (HTS) materials, the mechanical properties of HTS materials have been further improved and great progress has been made in practical applications. A 3.5 T HTS magnetic separation facility was designed and manufactured in China. A G-M cryocooler, as the cold source of the cryogenic system was used for...
Go to contribution page -
Mr Masazumi Noguchi (Tokyo Institute of Technology)18/11/2021, 10:00Poster
As an industrial application of the high-temperature superconducting coils (HTS coils), for example, an induction heating device that rotates a metal in a DC magnetic field by a superconducting coil have been studied. For that purpose, when operating the HTS coils, it is necessary to remove the heat from the coils and keep those at about 50K or less. In addition, assuming application to...
Go to contribution page -
142. Study on Forced Flow Cooling of Superconducting Magnet for Compact Synchrotron (THU-PO3-802-12)wei you (Institute of Modern Physics, Chinese Academy of Sciences)18/11/2021, 10:00Poster
Abstract : To cool the superconducting magnets of compact synchrotron, a forced flow cooling system based on GM/J-T concept with cooling capacity of 10 watts at 4.5K is researched. The cooling system consists of heat exchanger, precooling system, J-T valve and forced flow cooling tank. In refrigeration process, high pressure helium is cooled by the heat exchanger and precooling system, and...
Go to contribution page -
Dr Tetsuhiro Obana (NIFS)18/11/2021, 10:00Poster
In the superconducting magnet system, which is the core equipment of the fusion experimental device, a large number of measuring equipment are installed in the system for the operation and monitoring of the system. Although each measuring equipment is inspected and repaired during the maintenance period of the experimental device, there is a concern that trouble may occur in the measuring...
Go to contribution page -
Lishi Wang18/11/2021, 10:00Poster
The quench phenomenon of the accelerator superconducting magnet may occur in operation, which will cause the liquid helium in the cryostat to evaporate rapidly and release to the atmosphere. High-pressure helium will destroy significant components in the transmission line, and the helium released into the tunnel will lead to the ODH (Oxygen Deficiency Hazard), threatening the safety of...
Go to contribution page -
Wenzhe Hong18/11/2021, 10:00Poster
Helium bubble retention phenomenon was observed in the development of high field magnets by the National High Magnetic Field Laboratory (NHMFL) of the United States in 2014. The retention of a large number of helium bubbles can inevitably lead to the blocking of high field magnet cooling. In the case of the high field, the magnetic field force generated by the diamagnetism of helium bubbles...
Go to contribution page
Choose timezone
Your profile timezone: