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CANDU X

CANDU X. Hussam Khartabil GenIV Information Exchange Meeting April 29-30, 2003. CANDU X Main Safety Feature. Separation between moderator and coolant. Replace pumped moderator cooling loop with passive loop. Passive loop can be used under normal and accident conditions. Key projects:

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CANDU X

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  1. CANDU X Hussam Khartabil GenIV Information Exchange Meeting April 29-30, 2003

  2. CANDU X Main Safety Feature • Separation between moderator and coolant. • Replace pumped moderator cooling loop with passive loop. • Passive loop can be used under normal and accident conditions. • Key projects: • High Efficiency Channel (HEC) with internal insulation. • Flashing-driven moderator cooling loop.

  3. High Efficiency Channel (HEC) is key technology for CANDU X. • Internal insulation (eliminates CT and annulus gas system). • Allows the use of passive moderator cooling under normal and upset conditions. • Potential “walk-away” safety when combined with Passive moderator cooling. PressureTube Liner PorousInsulator

  4. Fuel channel ceramic insulator tests ongoing at SC conditions. • Feasibility study to add natural circulation loop completed.

  5. Test loop designed and materials purchased. • Will be used to study scaling and allow the design of a prototype loop for CX.

  6. Other Projects • Heat transfer tests using CO2 at SC conditions. • Engineering & economics. • Fuel Handling. • Fuel bundle design/fuel cycles. • Materials.

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