KIT

The R&D topics of the Institute of Technical Physics (ITEP) at the Karlsruhe Institute of Technology (KIT) cover all applications of superconductivity in the whole span from the fundamental research on the materials (technical and new superconductors) to superconducting devices (prototype and demonstrator). The research includes cryogenic structure materials and characterization of their low temperature properties, in particular advanced new materials. A leading research group is specialized on numerical modeling of superconductors and devices, creating new codes (addressing WP4.1.1).

Research topics are high field magnets for NMR and Fusion, Fault Current Limiters (FCL), transformers, high capacity cables for AC and DC power transmission, rotating machinery like wind energy generators, and superconductivity in future airplanes and space. Such applications ask for new cryogenic materials (addressing WP4.1.3). In particular High Temperature Superconductor Cables are developed and implemented with partners in new accelerator magnets and industrial power bars. It is the policy and part of the activities to contribute to standardization work (IEA TC90, VAMAS) and database acquisition for open access. Most of the R&D activities are performed in cooperation with other European institutions and commonly published in journals, proceedings, books. (addressing WP 4.1.4).

Cooperation partners include CERN, CEA, EPFL, Babcock-Noell, Bruker, Siemens ABB, Vision-S, Univ.Twente, IEE Bratislava, IFW Dresden, Airbus, TU Munich, BASF, THEVA, SuperOx

Role:

Task 4-1: Contributing with existing numerical modeling tools, update of new quench detection methods (actual research topic) and installation of an “Open Access Data Bank for Numerical Codes” together with the partners
Task 4-2: Contributing with KIT cryogenic data on materials and standardization of the measuring conditions. Extension of physical properties presented in the data collection.
Task 4-5: Contribution from research (fabrication and test) on stabilization of superconducting wires, tapes, cables, especially treated structure materials and 3D printed metallic and thermoplastic reinforced objects for cryogenic use.

Relevant Projects:

EuCARD

European Co-ordination for Accelerator Research & Development, 2009-2013, FP7, J-P. Koutchouk

Ampacity

“HTS energy cable for MV urban grid”, 2012-2015, BMWi-funded (Ministry of Economics, Germany), Coordinator RWE-Westnetz

ECCOFLOW

“Resistive HTS fault current limiter” 2010-2014, EU, Coordinator NEXANS

Smartcoil

“Inductive HTS fault current limiter” 2015-2018, BMWi (Ministery of Economics Germany) Coordinator: Siemens AG

3S

“Industrial high current power HTS transmission bars”, 2015-2018, BMWi (Ministery of Economics Germany), Coordinator: Vision-Superconductors

Additional Information

Infrastructure

Fabrication laboratories for superconducting LTS and HTS wire, cables (SULEILA) and devices (SET) (demonstrators, prototypes). Characterization of physical properties at T=4-300 K, B up to 20T in different test facilities. Material testing laboratories for mechanical stress, fracture and fatigue at cryogenic temperatures (CryoMaK). Test facility for superconducting devices (SET, VATESTA) as transformer, magnets, current limiters etc. Modeling codes for superconductos and devices (current, field distributions, AC losses etc.) including the development of new numerical codes. Magnet design and construction laboratory (high field, NMR, Fusion). Fusion magnet test site TOSKA and current lead test site (CULTKA).

Key Personnel

Dr. Wilfried Goldacker (m). Wilfried Goldacker earned his Ph.D. in Physics at Max-Planck-Institute Heidelberg in 1979. After his Ph.D., he joined the then FZK-ITEP in 1981 as researcher on superconductivity. Since 1990 he is head of the “Superconducting Materials and Energy Applications”. His experience covers all superconducting materials and applications. He cooperated in a large number of projects and is member of numerous boards. TASK 4-1

Dr. Francesco Grilli (m). Francesco Grilli earned his Ph.D. in Technical Sciences at EPF Lausanne (Switzerland) in 2004, He had PostDoc stays at Los Alamos National Lab. (2004-2007) and at Ecole Polytechnique Montreal (2007-2009), where he developed advanced numerical models for power applications of superconductors. From 2009 he is head of the “Modeling Group” at KIT- ITEP. He is lecturer at KIT, obtained several awards (2 times vanDuzer award for best contribution in IEEE Trans. Appl. Superc.). He is a leading expert in numerical modeling. Task 4-1

Dr.-Ing. Anna Kario (f). Anna Kario earned her Ph.D. 2011 at the Institute for Solid State and Material Research Dresden She joined KIT-ITEP in 2011, working on the development of HTS cables. She is responsible for HTS magnet cables contributing to the future magnet work package of the EU-Eucard2 project of CERN. She has wide experience in material properties, loss and stability in superconductors, and in technical applications. She is experienced since many years in project work. Task 4-1, Task 4-5

Dr. Klaus-Peter Weiss (m). Klaus-Peter Weiss earned his Ph.D. in Physics 2003 at ITEP Since 2003 he is in the Fusion Magnet department leading the Cryogenic Material Test Lab Karlsruhe (CryoMaK) and FBI Conductor Test Facility. He is engaged in working groups on standardization DKE/DIN and IEC Technical Committee 90 “Superconductivity”. His expertize is mechanical test of structure materials and superconductors and investigation of the related condensed matter physics. Task 4-2, Task 4-5

Publications

K.-P.Weiss et al. Thermal and mechanical properties of selected 3D printed thermoplastics in the cryogenic temperature regime, IOP Conf.Series, Mat.Sci.Eng. 102(1), 012017 (2015)

J.Sas et al., Mechanical and material properties of 316LN austenitic stainless steel for fusion applications in cryogenic temperature, IOP Conf.Series, Mat.Sci.Eng. 102(1), 012003 (2015)

S.Otten et al., Bending properties of different REBCO coated conductor tapes and Roebel cables at T = 77, accepted for publication, Supercond. Science and Technol, 2016

V.M.R.Zermeño, S. Quaiyum, F.Grilli, Open-Source Codes for Computing the Critical Current of Superconducting Devices, IEEE Trans. Appl. Supercond., 26(3): 4901607. 2016

F.Grilli, Numerical Modeling of HTS Applications, IEEE Trans. Appl. Supercond., 26(3): 0500408. 2016

CERN Accelerating science

EuCARD

Ampacity

ECCOFLOW

Smartcoil

3S

Additional Information

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