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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

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Cryogenics at CEA-Grenoble for more than 50 yearsfrom Fundamental Research to Applications

Fundamental ResearchUniversities, Research Institutes …

Finalized ResearchPrototyping, Tests Bed …

Realization & ValorizationCERN, ESA, ITER & BA, Industry …

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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 & ValidationHeat Transfer Measurements & Modeling in the 1990’sDevelopment & 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 UnitsIndustrial 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

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On-going Contributions for Large-scale Helium Refrigerators

• Mitigation Study of Pulsed Heat Loads for ITER and JT-60SA high-field magnetsModeling and Experimental ValidationDevelopment 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 FluxHigh Reynolds Number & Heat Flux

Present Activities for Large-scale Helium Refrigeration

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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

~0.8 m

~1.1 m

~1.2 m

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

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Thanks for your Attention

Questions ?