1. F.Millet - Preparation Meeting for the FCC International Collaboration BoardSeptember 9, 20141 / 5 CEA-Grenoble Contribution New challenges for the FCC cryogenic system François Millet on behalf of CEA-Grenoble cryogenic team September 10, 2014 See Roy Aleksan presentation « CEA and FCC » for other CEA contributions

2. F.Millet - Preparation Meeting for the FCC International Collaboration BoardSeptember 9, 20142 / 5 Cryogenics at CEA-Grenoble for more than 50 years from Fundamental Research to Applications Fundamental Research Universities, Research Institutes … Finalized Research Prototyping, Tests Bed … Realization & Valorization CERN, ESA, ITER & BA, Industry …

3. F.Millet - Preparation Meeting for the FCC International Collaboration BoardSeptember 9, 20143 / 5 CEA-Gre Contributions to the LHC project Superfluid Helium as High-Field Magnet Coolant Pioneered at CEA-Grenoble in the 1970’s and Implemented in the Tore Supra Tokamak in the 1980’s LHC Cooling Scheme Studies & Validation Heat Transfer Measurements & Modeling in the 1990’s Development & Tests of LHC Cryogenic Components (1,8 K pump, sub-cooling heat exchangers) in the 1990’s Design, Specifications & Commissioning of the 1,8 K Refrigeration Units Industrial Manufacturing (Air Liquide / IHI-Linde) in the 2000’s Alternative Cooling Architecture for the High-Luminosity Upgrade of the LHC (FP7 – HILUMI LHC Design Study) From Research Studies to LHC Commissioning

4. F.Millet - Preparation Meeting for the FCC International Collaboration BoardSeptember 9, 20144 / 5 On-going Contributions for Large-scale Helium Refrigerators Mitigation Study of Pulsed Heat Loads for ITER and JT-60SA high-field magnets Modeling and Experimental Validation Development of Advanced Control Strategy Supply of the JT-60SA Cryogenic System (Japanese Tokamak – ITER BA) Conceptual Design, Optimization, Specifications & Follow-up of Industry Fundamental Research on Turbulent Flow (I3-EuHIT) and Critical Heat Flux High Reynolds Number & Heat Flux Present Activities for Large-scale Helium Refrigeration

5. F.Millet - Preparation Meeting for the FCC International Collaboration BoardSeptember 9, 20145 / 5 Possible Contributions from CEA-Grenoble  Identification of Present Process and Component Limits  Development of New Technologies or Architectures  Improvement of Reliability and Efficiency New Challenges & CEA-Grenoble Contribution New challenges for the FCC Cryogenic System  Study & Developments of Larger Refrigerators -Towards 1 MW @ 4,5 K with high efficiency and reliability -Mainly Dynamic Heat Loads around 50 K from Beams -Superfluid Helium Refrigeration

6. F.Millet - Preparation Meeting for the FCC International Collaboration BoardSeptember 9, 20146 / 5 Thanks for your Attention Questions ?