CHATS on Applied Superconductivity 2015

14 Sept 2015, 08:00 → 16 Sept 2015, 13:30 Europe/Zurich

Bologna, Italy

Marco Breschi (University of Bologna)

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Synthesis_session _1.pdf

Synthesis_session_2.pdf

Synthesis_session_3.pdf

Synthesis_session_4.pdf

Synthesis_session_5.pdf

Monday 14 September

09:00 → 09:15 Opening welcome

Speaker: Marco Breschi (University of Bologna, Italy)

09:15 → 11:00 Session I: Thermo-hydraulics and cryogenics: part I

Conveners: Reinhard Heller (Karlsruhe Institute of Technology), Rob Van Weelderen (CERN)

09:15 Thermal modelling of the HiLumi Nb3Sn MQXF inner triplet magnets with OpenFOAM – Development of superfluid helium code

Speaker: Rob Van Weelderen (CERN)

01_van_Weelderen.pdf

09:45 Modelling of transient dynamics leading to crisis in a boiling helium natural circulation loop

Speaker: Hernan Furci (CEA Saclay)

02_Furci.pdf

10:15 Dynamic simulations of a tokamak cryogenic system

Speaker: ROBERTA CIRILLO (CEA)

03_Cirillo.pdf

10:45 Coffee Break

11:00 → 14:15 Session I: Thermo-hydraulics and cryogenics: Part II

Conveners: Reinhard Heller (Karlsruhe Institute of Technology), Rob Van Weelderen (CERN)

11:00 A Physics-Based Simplified Model for the ITER Cooling Loops

Speaker: Luca Bottura (CERN)

04_Bottura.pdf

11:30 Process Control Strategy for ITER Central Solenoid Operation

Speaker: Ryuji MAEKAWA (ITER Organization)

05_Maekawa.pdf

12:00 Characterization of the thermal coupling between the ITER TF coil conductor and the structure cooling circuit

Speaker: Gauthier Florent (ITER)

06_Gauthier.pdf

12:30 ITER Side Correction Coil Quench Model and Analysis

Speaker: Sylvie NICOLLET (CEA)

07_Nicollet.pdf

13:00 Lunch

14:15 → 16:00 Session I: Thermo-hydraulics and cryogenics: Part III

Conveners: Reinhard Heller (Karlsruhe Institute of Technology), Rob Van Weelderen (CERN, Geneva, Switzerland)

14:15 Modeling the KSTAR PF magnet system – an engineering work for the optimal operation

Extending the development of a pilot of SUPERMAGNET model of the KSTAR PF magnet, the thermo-hydraulic analysis has been emerged as an essential part to study the performance of the superconducting magnet in KSTAR tokamak. Showing the possibility of a good simulator of superconducting tokamak, we develop a coupled CICC network of the full-scale central solenoids (PF1UL ~ PF7UL of KSTAR) in the framework of SUPERMAGNET code which enables orchestration of the individual solvers in CryoSoft 8.0 package. Into the model of the magnet system, autonomous heat load generation is included with validated two-tau model of coupling loss. It's a work for the physical simulator whose attempt is the reliable analysis when investigating the parametric model for real-time application. Hence, the feasibility and shortcoming is discussed as the performance issue of simulation comparing with the experimental data. The numerical stability, which is related to the 1-D flow connection to the volume node, is carefully investigated on the preliminary work to upgrade the cryo-network solver. For an attempt at a similar type of modification, we also present the applicability of user-defined component (compressor) and its connection scheme paying attention to the consistence of its dynamical behaviour.

Speaker: Dong Keun Oh (NFRI)

08_Oh.pdf

14:45 Thermo-hydraulic analyses associated to a design proposal for DEMO TF conductor

Speaker: Roser Vallcorba (CEA - Saclay)

09_Vallcorba.pdf

15:15 Predictive 1-D analysis of the prototype HTS current leads for the ITER Correction Coils

Speaker: Reinhard Heller (Karlsruhe Institute of Technology)

10_Heller.pdf

15:45 Coffee Break

16:00 → 18:00 Session III: LTS quench: Part I

Conveners: Andy Gavrilin (NHMFL, USA), Fabrizio Bellina (University of Udine, Italy)

16:00 Quench Analysis of the 11 T Nb3Sn Dipole for the LHC Luminosity Upgrade

Speaker: Susana Izquierdo Bermudez (CERN)

11_Izquierdo.pdf

16:30 Lumped-Element Dynamic Electro-Thermal model of a superconducting magnet

Speaker: Michal Maciejewski (Technical University of Lodz(PL))

12_Maciejewski.pdf

17:00 Analysis of the quench propagation along Nb3Sn Rutherford cables with the THELMA code

Speaker: Fabrizio Bellina (Udine University)

13_Bellina.pdf

Tuesday 15 September

08:30 → 09:30 Session III: LTS quench: Part II

Conveners: Andy Gavrilin (NHMFL), Fabrizio Bellina (University of Udine, Italy)

08:30 Stability modeling of the LHC Rutherford cables subjected to beam losses

Speaker: Marco Breschi (Universita e INFN, Bologna (IT))

14_Breschi.pdf

09:00 Using the HELIOS facility for assessment of bundle-jacket thermal coupling in a CICC

Speaker: Benoit LACROIX (CEA)

15_Lacroix.pdf

09:30 → 11:45 Session III: HTS quench: Part I

Conveners: Francesco Grilli (Karlsruhe Institute of Technology), Marco Breschi (Universita e INFN, Bologna (IT))

09:30 Numerical analysis of propagation of thermal disturbances in REBCO tapes

Speaker: Alberto Brighenti (Polytechnics of Torino)

16_Brighenti.pdf

10:30 Coffee Break

10:45 Electro-thermal Analysis of quench in High Field HTS coils

Speaker: Lorenzo Cavallucci (University of Bologna)

18_Cavallucci.pdf

11:15 Comprehensive quench analysis of the NHMFL 32T all-superconducting magnet

Speaker: Andrey Gavrilin (Florida State University, Florida, USA)

19_Gavrilin.pdf

11:45 → 16:20 Session IV: HTS Electromagnetics

Conveners: Antonio Morandi (University of Bologna, Italy), Naoyuki Amemiya (Kyoto University)

11:45 Open-source software to model High Temperature Superconductor

Speaker: Frederic Trillaud (Universidad Nacional Autónoma de México)

20_Trillaud.pdf

12:15 Modeling AC ripples in HTS coated conductors by integral equations

Speaker: Francesco Grilli (Karlsruhe Institute of Technology)

21_Grilli.pdf

12:45 Lunch

14:00 Ac Loss Calculation of a Dipole Magnet Wound with Coated Conductors

Speaker: Naoyuki Amemiya (Kyoto University)

22_Amemiya.pdf

14:30 Test of a prototype large current HTS cable for fusion

Speaker: Pierluigi Bruzzone (EPFL-CRPP)

23_Bruzzone.pdf

15:00 Simulation of current distribution in twisted 2G tapes in terms of the H formulation taking in account the stress induced by torsion

Speaker: Guilherme Sotelo (Fluminense Federal University)

24_Sotelo.pdf

15:30 Coffee Break

15:45 Numerical Simulation on Magnetic Field generated by Screening Current in REBCO coils

Speaker: Hiroshi Ueda (Osaka University)

25_Ueda.pdf

16:20 → 17:20 Session V: Design methods and mechanics: Part I

Convener: Sylvie Nicollet (CEA,IRFM, Cadarache, France)

16:20 Modeling and testing of transverse, axial and torsional strain on REBCO tapes

Speaker: Arend Nijhuis (University of Twente)

26_Nijhuis.pdf

19:00 → 20:15 Opera Music Concert

at Circolo Ufficiali, Palazzo Grassi, Via Marsala 12, Bologna

20:15 → 22:15 Banquet at Circolo Ufficiali

Palazzo Grassi, Via Marsala 12, Bologna

Wednesday 16 September

09:00 → 10:00 Invited presentation: The simulator of FERRARI formula 1 vehicle

Speaker: Giacomo Tortora (Ferrari Sport Team)

10:00 → 12:25 Session V: Design methods and mechanics: Part II

Convener: Sylvie Nicollet (CEA, IRFM Cadarache, France)

10:00 Study on magnetic field deviation due to manufacturing errors of the SIS100 superconducting magnets

Speaker: Kei SUGITA (GSI)

27_Sugita.pdf

10:30 Design and Optimization of a HTS Insert for Solenoid Magnets

Speaker: Giordano Tomassetti (ENEA)

28_Tomassetti.pdf

11:00 Coffee Break

11:20 Simulation of the Cabling Process for Rutherford Cables: an Advanced FEM Model

Speaker: Jaime Cabanes Aracil (CERN)

29_Cabanes_Garlasche.pdf

11:55 Structural Modeling of HTS Tapes and Cables

Speaker: Nathaniel Allen (Tufts University)

30_Allen.pdf

12:25 → 13:30 Wrap up session

Convener: Luca Bottura (CERN)