EUR volume 3 AES 92 subset Yury ERMAKOV, RosEnergoAtom Olivier ROUSSELOT, EDF

Transcription

1 European Utility Requirements for LWR nuclear power plants EUR volume 3 AES 92 subset Yury ERMAKOV, RosEnergoAtom Olivier ROUSSELOT, EDF EUR seminar 2007 Nice, May

2 key points of the presentation Presentation of AES 92 design Main results of AES 92 assessment Last steps up to distribution of EUR volume 3 AES 92 subset page 2 BE, EDF, ENDESA, ENEL, FKA, Fortum & TVO, IBERDROLA, NRG, REA, SOGIN, swissnuclear, TBL, VGB Power Tech 05/2007

3 the AES 92 design as licensed by RF GAN for Novovoronezh-2 NPP in 1999 page 3 BE, EDF, ENDESA, ENEL, FKA, Fortum & TVO, IBERDROLA, NRG, REA, SOGIN, swissnuclear, TBL, VGB Power Tech 05/2007

4 Overall layout of an AES-92 NPP with a VVER-1000 Reactor page 4 BE, EDF, ENDESA, ENEL, FKA, Fortum & TVO, IBERDROLA, NRG, REA, SOGIN, swissnuclear, TBL, VGB Power Tech 05/2007

5 Main developers of the AES 92 project Federal State Unitary Enterprise Research, Design and Engineering Survey Institute «Atomenergoproekt» Federal State Unitary Enterprise EDO «Gidropress» Federal State Enterprise Russian Scientific Center «Kurchatov Institute» EUR seminar page 5 BE, EDF, ENDESA, ENEL, FKA, Fortum & TVO, IBERDROLA, NRG, REA, SOGIN, swissnuclear, TBL, VGB Power Tech 05/2007

6 AES 92 Development USSR Government regulation for improving NPP safety AES 92 design for REA Novovoronezh-2 NPP in Russia Construction license by RF GAN Design approval by Minatom April 12, 1999 December 30, 1999 AES 92 design for NPCIL Kundankulam NPP in India Construction license by Indian AERB March 22, 2002 First concrete: Physical progress achieved: (as on March 2007) Scheduled date of criticality: unit 1: March 2000 unit 2: July 2002 unit 1: 78,6% unit 2: 68,7% unit 1: 2008 unit 2: 2008 page 6 BE, EDF, ENDESA, ENEL, FKA, Fortum & TVO, IBERDROLA, NRG, REA, SOGIN, swissnuclear, TBL, VGB Power Tech 05/2007

7 The safety concept: systematic implementation of diversity for all safety functions page 7 BE, EDF, ENDESA, ENEL, FKA, Fortum & TVO, IBERDROLA, NRG, REA, SOGIN, swissnuclear, TBL, VGB Power Tech 05/2007

8 AES 92 design: main systems page 8 BE, EDF, ENDESA, ENEL, FKA, Fortum & TVO, IBERDROLA, NRG, REA, SOGIN, swissnuclear, TBL, VGB Power Tech 05/2007

9 AES 92 design: main systems The main active safety systems: Active emergency core cooling + containment spray (pumps + ejectors,, 4 trains) active heat removal from steam generator (active steam condenser) active annulus ventilation system page 8 BE, EDF, ENDESA, ENEL, FKA, Fortum & TVO, IBERDROLA, NRG, REA, SOGIN, swissnuclear, TBL, VGB Power Tech 05/2007

10 AES 92 design: main systems The main passive safety systems: Hydroaccumulators stage 1 (compressed gas driven) Hydroaccumulators stage 2 (gravity driven) Passive heat removal from steam generator (passive steam condenser) Passive annulus filtration system Fast boron injection system page 8 BE, EDF, ENDESA, ENEL, FKA, Fortum & TVO, IBERDROLA, NRG, REA, SOGIN, swissnuclear, TBL, VGB Power Tech 05/2007

11 AES 92 Containment Passive filtration system Outer wall Reinforced concrete Metallic liner Inner wall Prestressed concrete page 9 BE, EDF, ENDESA, ENEL, FKA, Fortum & TVO, IBERDROLA, NRG, REA, SOGIN, swissnuclear, TBL, VGB Power Tech 05/2007

12 Corium Catcher Lower plate Cantilever truss Filler Concrete shaft Housing page 10 BE, EDF, ENDESA, ENEL, FKA, Fortum & TVO, IBERDROLA, NRG, REA, SOGIN, swissnuclear, TBL, VGB Power Tech 05/2007

13 Main results of AES 92 assessment page 11 BE, EDF, ENDESA, ENEL, FKA, Fortum & TVO, IBERDROLA, NRG, REA, SOGIN, swissnuclear, TBL, VGB Power Tech 05/2007

14 Partners involved in the AES 92 assessment EUR partners: EDF: Mr Olivier ROUSSELOT ENERGOATOM: Mr Vitaly VORONTSOV FORTUM: Mr Bahey MOHSEN IBERDROLA: Mr Carlos PADILLA ROSENERGOATOM: Mr Vadim SEMISHIN Mrs Elena SOLONKO SOGIN: Mr Alceste RILLI VATTENFALL/FKA: Mr Johan ANDERSSON AES 92 Designers: ATOMENERGOPROEKT Mr Mikhail MALTSEV Mrs Lidiya VOROZHSOVA OKB GIDROPRESS: Mr Nikolay FIL KURCHATOV INSTITUTE Several experts page 12 BE, EDF, ENDESA, ENEL, FKA, Fortum & TVO, IBERDROLA, NRG, REA, SOGIN, swissnuclear, TBL, VGB Power Tech 05/2007

15 Main results of AES 92 assessment The AES-92 plant design has been developed as a Standard Design in the Russian Federation context. Even so, the compliance assessment performed and reported in the EUR Volume 3 AES-92 Subset shows a good level of compliance of the AES-92 plant design with the EUR policies, objectives and requirements. page 13 BE, EDF, ENDESA, ENEL, FKA, Fortum & TVO, IBERDROLA, NRG, REA, SOGIN, swissnuclear, TBL, VGB Power Tech 05/2007

16 Main results of AES 92 assessment Many "compliances with objectives" have been identified Russian Federation specific regulatory context The designer intends to demonstrate compliance during the detailed design phase Compliance with with objectives (CWO): the the design design is is supposed to to achieve the the objective of of the the requirement; either either a different approach from from the the EUR EUR one one is is used used to to achieve the the same same objectives, or or the the approach is is not not yet yet defined page 14 BE, EDF, ENDESA, ENEL, FKA, Fortum & TVO, IBERDROLA, NRG, REA, SOGIN, swissnuclear, TBL, VGB Power Tech 05/2007

17 Main results of AES 92 assessment Compliance with the EUR objectives: PSA targets: the AES 92 results are quite low for the internal events, thus the EUR objectives are reachable, but impact of certain hazards and initiating events has not been assessed yet Safety classification: the Russian Standard OPB88/97 based on different principles than EUR. The safety classified part may be a bit larger than allowed in EUR. Primary and Secondary Containment performance: balanced design achievable because of big reserve for optimisation page 15 BE, EDF, ENDESA, ENEL, FKA, Fortum & TVO, IBERDROLA, NRG, REA, SOGIN, swissnuclear, TBL, VGB Power Tech 05/2007

18 Main results of AES 92 assessment Compliance with the EUR objectives (continued): Passive Heat removal in Design Extension Conditions for 72 h: reliable operation of Passive Heat Removal System beyond 24 h depends on results of tests on PHRS and gas-removal system Reactor Pressure Vessel: 60 year-lifetime possible by construction changes, improved material properties, surveillance specimens Automatic isolation of Residual Heat Removal System located outside primary containment: could be done on customer demand page 16 BE, EDF, ENDESA, ENEL, FKA, Fortum & TVO, IBERDROLA, NRG, REA, SOGIN, swissnuclear, TBL, VGB Power Tech 05/2007

19 Main results of AES 92 assessment Compliance with the EUR objectives (continued): EUR Seismic spectra & soil conditions: adaptable design Fuel & core performance Average FA Burn-up: 51 MWd/kgHM (55 for EUR) Type of fuel: initially UO 2 core, 50% MOX feasible Length of fuel cycle: initially 12 months, but capability for 24 Codes & standards: use of Euronorms looks possible HV Grid requirements: comparable voltage-frequency fields page 17 BE, EDF, ENDESA, ENEL, FKA, Fortum & TVO, IBERDROLA, NRG, REA, SOGIN, swissnuclear, TBL, VGB Power Tech 05/2007

20 Main results of AES 92 assessment Several Non-Compliances have been identified Overall construction time: 60 months from first concrete to commercial operation, no reduction foreseen for AES 92 Digital I&C and computerised Man-machine interface for AES 92 partially computerised control room normal operation handled via fully computerized MMI safety systems dealt through conventional controls with duplication of information on displays of computerized MMI Refuelling & regular maintenance outage duration: 28 days for AES 92 (20 days requested in EUR) Spent fuel storage capacity: 642 cells for AES 92 (instead of 738 cells according to EUR, mainly for MOX spent fuel) Non-compliance (NOC): (NOC): the the design design does does not not meet meet the the requirement; an an assessment of of the the gap gap importance must must be be given. given. page 18 BE, EDF, ENDESA, ENEL, FKA, Fortum & TVO, IBERDROLA, NRG, REA, SOGIN, swissnuclear, TBL, VGB Power Tech 05/2007

21 Last steps up to distribution of EUR Volume 3 AES 92 subset page 19 BE, EDF, ENDESA, ENEL, FKA, Fortum & TVO, IBERDROLA, NRG, REA, SOGIN, swissnuclear, TBL, VGB Power Tech 05/2007

22 EUR Volume 3 AES 92 subset last steps up to distribution EUR SC in June (63 rd ) and December (65 th ) 2005 presentation of results of compliance analysis results in March 2006, cross-review of the results obtained for the three PWR designs assessed by the EUR Organisation as of today, EPR, AP 1000 and AES-92, in order to ensure uniformity in the applied assessment criteria Approval by EUR SC (66 th ) in March 2006 page 20 BE, EDF, ENDESA, ENEL, FKA, Fortum & TVO, IBERDROLA, NRG, REA, SOGIN, swissnuclear, TBL, VGB Power Tech 05/2007

23 EUR Volume 3 AES 92 subset last steps up to distribution Finalisation works at AEP and EDF May-August 2006 last parts of the plant description gathered in May 2006 highlights of the analysis of compliance revised in April-June 2006 to take into account the comments expressed by the EUR SC in March and the last pieces of information supplied by AEP English review and typing finalised around mid August 2006 Binders of Volume 3 AES 92 subset printed, being dispatched to the EUR partners and the designers CDROM of Volume 3 AES 92 subset PDF files and CDROMs yet to be produced Distribution outside the EUR Organisation subjected to Confidentiality agreement with the designers page 21 BE, EDF, ENDESA, ENEL, FKA, Fortum & TVO, IBERDROLA, NRG, REA, SOGIN, swissnuclear, TBL, VGB Power Tech 05/2007

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