Tokamak Cooling Water System Presented to ITER PROJECT 1st INFORMATION FORUM

1. Tokamak Cooling Water SystemPresented toITER PROJECT 1st INFORMATION FORUM Kirby Wilcher Cooling Water Systems Engineer November 15, 2006

2. Tokamak Cooling Water System Team Jan Berry WBS Manager Jan Berry WBS Manager Karen McElhaney System Engineer Robyn Rose Project Controls Kirby Wilcher System Engineer

3. Cooling Water System • Scope based on 2001 Design • CWS Consists of 4 Systems • Tokamak Cooling Water System (TCWS) • Component Cooling Water System (CCWS) • Chilled Water System (CHWS) • Heat Rejection System (HRS)

4. US Scope Physical Boundary of TCWS

5. Tokamak Cooling Water System • TCWS Consists of 7 Sub-systems • Primary Heat Transfer System (PHTS) • Primary First Wall & Blanket (PFW/BLK) • Diverter/Limiter (DIV/LIM) • Vacuum Vessel (VV) • Neutral Beam Injector (NB) • Chemical and Volume Control System (CVCS) • Drain and Refilling Systems • Drying System

6. Primary Heat Transfer from In-Vessel Components Fabricated by Sub-System • First Wall & Blanket (WBS1.2.1.1) and Neutral Beam Injector (WBS1.2.1.4): • Upper Pipe Chase • Vault • Diverter/Limiter (WBS1.2.1.2): • Lower Pipe Chase • Upper Pipe Chase • Vault • Vacuum Vessel (WBS1.2.1.3): • Lower Pipe Chase • Upper Pipe Chase • Roof PHTS

7. 1 GW Heat Removal Required by PHTS; Various Operating Modes

8. Chemical and Volume Control System;PFW/BLK

9. Chemical and Volume Control System;Various Operating Modes

10. Drain and Refilling Systems;DIV/LIM

11. Drain and Refilling Systems;Various Operating Modes *number of tanks in parentheses indicates those used for drainage following an in-vessel coolant leak

12. Drying System

13. Drying System;Various Operating Modes

14. New Cost Share Agreement SimplifiesInterfaces with Participant Teams • Initial cost share agreement divided responsibility by location (inside vault/outside vault) • New agreement divides responsibility by activity: • US no longer responsible for installation • US responsible for materials, components, and shipping • Increases US responsibility for fabrication • Pre-fabrication reduces overall ITER cost • IO responsible for engineering, on-site assembly and testing • US ITER is contributing engineering

15. Seven Sub-Systems Distributed Throughout Tokamak Building Primary Heat Transfer: • Vault • Upper Pipe Chase • Roof • Lower Pipe Chase Support Systems: • Draining and Refilling (WBS1.2.1.6) • Chemical and Volume Control System (WBS1.2.1.5) • Drying (WBS1.2.1.7)

16. Requirements Under Review • Vendors Must Be Able to Comply with US and EU Codes & Standards • American Society of Mechanical Engineers Standards • Pressure Equipment Directive (European Union Directive) • ESPN (French Order on Nuclear Pressure Equipment) • Nuclear vs. Non-nuclear Classification of TCWS Components to be Determined by ITER and French Regulatory Authorities • Applicable Codes & Standards Still Under Review • Materials of Construction: • 304L/316L Stainless Steel

17. Component Delivery by 2014

18. Additional Information Additional information available at: • General Information www.iter.org • ITER Technical Basis http://www.iter.org/a/index_use_5.htm

19. Backup Information Detailed Preliminary Schedule and Milestones

20. Preliminary Schedule

21. Preliminary Schedule (Cont.)

22. Systems Integration Preliminary Schedule and Milestones

23. First Wall and Blanket Preliminary Schedule and Milestones

24. Divertor/Limiter Preliminary Schedule and Milestones

25. Vacuum Vessel Preliminary Schedule and Milestones

26. Neutral Beam Injector Preliminary Schedule and Milestones

27. Chemical and Volume Control System—May 2013

28. Draining and Refilling Schedule—June 2010

29. Drying System Schedule—October 2013