KoM meeting 09 Oct 06 Kick-off-meeting of EFDA TW6-TSL-002 contracts 06-1412, 06-1413, 06-1414, 06-1415 09 Oct 2006 Kick-off-meeting of EFDA TW6-TSL-002.

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Presentation transcript:

KoM meeting 09 Oct 06 Kick-off-meeting of EFDA TW6-TSL-002 contracts , , , Oct 2006 Kick-off-meeting of EFDA TW6-TSL-002 contracts , , , Safety assessment for EU TBM to support ITER Licensing Process 09 Oct 2006 S.Ciattaglia EU safety contact person EFDA CSU Garching Background Status of DDD Status of safety analysis FMEA few results Aim of the task TSL-002 Summary

KoM meeting 09 Oct 06 Status of DDD No modification from the versions of beginning 2006, in particular of the section 3.6 “Safety analysis” that reports the safety analysis performed by the Designers:No modification from the versions of beginning 2006, in particular of the section 3.6 “Safety analysis” that reports the safety analysis performed by the Designers: –Source terms –Thermo-mechanical and thermo-hydraulic analysis The Chapters will be updated/completed with the outputs of the on going safety tasks Need to define SIC classification for TBM systems and components (request from Designers) a lot of TBM pipes will cross through the closure plate of the Port Plug,a lot of TBM pipes will cross through the closure plate of the Port Plug, a lot of TBM pipes will be located in the Port Cell, along with some equipments (e.g. PIC),a lot of TBM pipes will be located in the Port Cell, along with some equipments (e.g. PIC), Designers would like to better understand Designers would like to better understand what are the implication from the Licensing point of view (those pipes/equipments constitutes a prolongation of the VV primary boundary).what are the implication from the Licensing point of view (those pipes/equipments constitutes a prolongation of the VV primary boundary). Will they be safety-classified?Will they be safety-classified? What could be the implication? (double containment, qualification in procurement, etc..).What could be the implication? (double containment, qualification in procurement, etc..).

KoM meeting 09 Oct 06 Safety analysis scheme P IEInitiating Events ASAccident Sequences FMEAFunctional Failure Mode and Effect Analysis PSTProcess Source Term ESTEnvironmental Source Term DCFDose Conversion Factor SOURCE TERMS ASSESSMENT Normalworking conditions Occupational dose IE AS Thermodynamic transients Aerosols and H3 transport Containments Release from the plant DCF Overall Plant Analysis FFMEA Radioactive waste Operational&Decomm waste Identification&classification Management On-site Recycling Final disosal Effluents PST EST DCF man*Sv/y dose/sequence to MEI frequency*dose Quantity and waste categories mSv/y SOURCE TERMS ASSESSMENT Normalworking conditions Occupational dose PIE AS Thermodynamic transients Aerosols and H3 transport Containments Release from the plant DCF Overall Plant Safety Analysis FMEA Radioactive waste Operational&Decomm waste Identification&classification Management On-site Recycling Final disosal Effluents PST EST DCF man*Sv/y dose/sequence to Public frequency*dose Quantity and waste categories mSv/y

KoM meeting 09 Oct 06 Status of safety analysis EU safety analysis aim bring TBM safety analysis to similar maturity level of other SIC systems as requested by French regulations, considering also the recommendations made by NSA as output of DOS analysisbring TBM safety analysis to similar maturity level of other SIC systems as requested by French regulations, considering also the recommendations made by NSA as output of DOS analysis point out open issues and a relevant credible R&D programmepoint out open issues and a relevant credible R&D programme Significant safety analysis have been already done by the EU TBM Designers Safety analysis missing/to be rewieved Neutronic review: report ready for HCLL, by Dec for HCPBNeutronic review: report ready for HCLL, by Dec for HCPB FMEA: almost concluded for HCPB, just started for HCLLFMEA: almost concluded for HCPB, just started for HCLL Most severe accidents: KoM todayMost severe accidents: KoM today ORE: KoM todayORE: KoM today Waste review: KoM todayWaste review: KoM today R&D and further analysis definition: mid 2007R&D and further analysis definition: mid 2007

KoM meeting 09 Oct 06  Component  Operation States  Failure Modes  Causes  Preventive Action on Causes  Consequences  Corrective/Preventive Action on Consequences  PIEs  Comments FMEA Table (columns) Failure Mode and Effect Analysis Garching – 28 September 2006 Normal Operation = Burning & Dwell

KoM meeting 09 Oct 06 HCPB Components (~ 140) - Component - DescriptionComment TBM Test Blanket Module TBM-FSW TBM-FSW TBM-First-Side wall 42 channels (14 of 2-sweep-channels), ~1.7 m each TBM-Cap TBM-CapTBM-Caps 2 caps. Each cap ~25 channels of about 1.6 m TBM-Grid TBM-GridTBM-Grid TBM-Grid-CoolCh TBM-Grid-CoolCh TBM - Grid - Cooling Channel TBM-Grid-CapWeld TBM-Grid-CapWeld TBM - Grid - Welds to assemble the Grid to Caps TBM-Grid-FSWWeld TBM-Grid-FSWWeld TBM - Grid - Welds to assemble the Grid to FSW TBM-Grid-BUWeld TBM-Grid-BUWeld TBM - Grid - Welds to assemble the BU to Grid TBM-BU TBM-BU TBM-Breeder Unit PI-TBM foreseen for the high-duty D-T-phase of ITER- FEAT TBM-BottPMs TBM-BottPMs TBM - Bottom Plate Manifolds TBM-BPM TBM-BPM TBM-Back Plate/Manifold TBM-PP-IS TBM-PP-IS TBM-Port Plug Interface System PP Port Plug IPCE Inter-space and Port Cell Equipment HCS Helium Cooling System TES Tritium Extraction System CPS Coolant Purification System Failure Mode and Effect Analysis 28 September 2006

KoM meeting 09 Oct 06 Sample of FMEA Table Failure Mode and Effect Analysis Garching – September 2006

KoM meeting 09 Oct 06 Postulated Initiating Events Identified by the FMEA for HCPB Failure Mode and Effect Analysis Garching – September 2006

KoM meeting 09 Oct 06 AIM of the Task TSL-002 Deterministic analysis of the most severe accident sequences for each of the two EU TBM concepts Occupational Radiation Exposure (ORE) assessment considering the new designs of the two EU TBM models Waste assessment for both TBM concept considering the new neutronic calculations The analysis will take advantage of the work already done inside the Design Teams A technical co-ordination is foreseen focused on addressing, supporting and reviewing the safety analysis with particular reference to the deterministic analysis, the relevant modelisation of circuits and volumes, the codes and the assumptions with reference to the last updated design documents and the technical content description of TBM preliminary safety analysis report.Deterministic analysis of the most severe accident sequences for each of the two EU TBM concepts Occupational Radiation Exposure (ORE) assessment considering the new designs of the two EU TBM models Waste assessment for both TBM concept considering the new neutronic calculations The analysis will take advantage of the work already done inside the Design Teams A technical co-ordination is foreseen focused on addressing, supporting and reviewing the safety analysis with particular reference to the deterministic analysis, the relevant modelisation of circuits and volumes, the codes and the assumptions with reference to the last updated design documents and the technical content description of TBM preliminary safety analysis report.

KoM meeting 09 Oct 06 EU TBM safety analysis plan Neutronic analysisApril - July (Oct-Dec) 06Neutronic analysisApril - July (Oct-Dec) 06 FMEA: PIEs June - Oct 06FMEA: PIEs June - Oct 06 Accident sequences: DBA and BDBA July (Sept) 06 - Feb 07Accident sequences: DBA and BDBA July (Sept) 06 - Feb 07 Revision of ORE and WasteJuly (Nov) 06 - Feb 07Revision of ORE and WasteJuly (Nov) 06 - Feb 07 Final ReportMarch 06Final ReportMarch 06 R&D for TBM safety open issues (if any) by Mid 07R&D for TBM safety open issues (if any) by Mid 07

KoM meeting 09 Oct 06 Summary A systematic approach has been launched on EU TBM safety analysis –FMEA and PIE-PIT –Review of neutronics, ORE, Wastes –Accident sequences analysis Some delay in Neutronic analysis, slightly in FMEA (it will be ready by Oct) PlanningPlanning –by March 2007 all the analysis missing (most severe accidents, ORE, Wastes) –in 2007, safety review of Final Design and definition of R&D for the safety open issues, if any Quality of analysis and computer codes Need to define SIC classification for TBM systems and components 18 Dec 06 next ITER TBM safety meeting: check the progress of TBM safety analysis in all Parties

KoM meeting 09 Oct 06 AGENDA