Conveners
Cryogenics
- Jaroslaw Polinski (Wroclaw University of Technology)
Laurent Jean Tavian
(CERN)
14/04/2016, 10:30
Infrastructure and Operation
Oral
The conceptual design of the FCC cryogenics systems has made significant progresses. Different magnet cooling schemes have been studied in superfluid and normal helium. The impact on the size and on the operation cost of the cryogenic system has been studied for different magnet operating temperature. A cryogenic architecture has been defined and the main hardware location at ground, service...
Steffen Kloeppel
(TU Dresden)
14/04/2016, 10:50
Infrastructure and Operation
Oral
The Nelium concept is an approach for highly efficient refrigeration in the temperature range from 25 K to 65 K, making it a promising candidate for the cooling of the FCC-hh beam screens in the range from 40 K to 60 K. The concept uses a cycle with turbo compressors, which have higher efficiencies compared to classical screw compressors. The mixing of helium and neon reduces the number of...
Francois Millet
14/04/2016, 11:07
Infrastructure and Operation
Oral
Large unit-capacity cryogenic plants are required to cool at helium temperature high-field superconducting magnets of FCC-hh, high-gradient superconducting RF cavities of FCC-ee as well as for the cooling above 40 K of heavy-loaded FCC-hh beam screens, thermal shields and the HTS current leads. The cooling requirements are challenging with a very large refrigeration capacity up to 3 to 4 times...
Hugo Ricardo Correia Rodrigues
(CERN)
14/04/2016, 11:24
Infrastructure and Operation
Oral
The development of FCC poses great challenges in cryogenic process equipment and to future cryogenic facilities. Specifically, as compared to the Large Hadron Collider (LHC), cooling a magnet lattice of about 186000 tons over an equivalent period of time, requires three times of the current available cooling power. Hence, exploring the potential impact of the cooling power on the cooling and...
Paweł Duda
(Wroclaw University of Technology)
14/04/2016, 11:41
Infrastructure and Operation
Oral
FCC accelerator will require helium distribution system exceeding the presently exploited transfer lines by almost order of magnitude. The helium transfer line will contain 5 process pipes protected against heat leaks by a common thermal shield. The design pressure of the FCC process pipe with supercritical helium will be equal to 50 bar, significantly exceeding the 20 bar value in present...