• Share
  • Email
  • Embed
  • Like
  • Save
  • Private Content
Mikael Kuokkkanen, Inspecta Nuclear (Švedija), „Visagino VAE projektas. Techniniai reikalavimai, naudojant ASME ir PED 97/23/EC kombinaciją). II dalis“
 

Mikael Kuokkkanen, Inspecta Nuclear (Švedija), „Visagino VAE projektas. Techniniai reikalavimai, naudojant ASME ir PED 97/23/EC kombinaciją). II dalis“

on

  • 418 views

 

Statistics

Views

Total Views
418
Views on SlideShare
418
Embed Views
0

Actions

Likes
0
Downloads
1
Comments
0

0 Embeds 0

No embeds

Accessibility

Categories

Upload Details

Uploaded via as Adobe PDF

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

    Mikael Kuokkkanen, Inspecta Nuclear (Švedija), „Visagino VAE projektas. Techniniai reikalavimai, naudojant ASME ir PED 97/23/EC kombinaciją). II dalis“ Mikael Kuokkkanen, Inspecta Nuclear (Švedija), „Visagino VAE projektas. Techniniai reikalavimai, naudojant ASME ir PED 97/23/EC kombinaciją). II dalis“ Presentation Transcript

    • ASME Boiler and Pressure Vessel Code vs. PED and EN-standards and nuclear safety requirements Conference in Vilnius 11th of October 2012 „Visaginas nuclear power plant: aspects of practical preparation“ Mikael Kuokkanen Inspecta Nuclear1 2012-10-15
    • ASME Boiler and Pressure Vessel Code vs. PED and EN-standards and nuclear safety requirementsContentsPart A – Introduction to and prerequisites for Nuclear Power projects1) Brief overview of a NPP and major New Build project phases2) Regulatory framework, Codes, Standards, and Specifications3) Division into Safety Classes and implications to SpecificationsPart B – Opportunities and handling of some challenges in NPP projects1) Experiences on NPP projects2) What is the extent of work in a New Build NPP3) Implications on opportunities from the choice of Specifications4) Important steps to be successful - start prepare in timeSummary2 2012-10-15
    • Brief overview of a NPPMajor systems and components in a NPP3 2012-10-15
    • Brief overview of a NPPMajor systems and components in a NPP4 2012-10-15
    • Regulatory framework, Codes, Standards, and Specifications Global principles but local regulation and control is needed• Basic principles for nuclear safety are similar throughout the world, as originated from U.S. regulation (by NRC) and standards (by ANSI for nuclear and ASME for mechanical); and as generalised in IAEA safety handbooks and guides. − Power utilities have special cooperation forms for exchange of experiences (owner’s groups) and preparation of utility requirements e.g. in Europe (EUR). − Western European nuclear regulatory authorities (WENRA) are in the process of harmonising general safety and regulatory oversight practices.• However, local legislation and guidelines gives the country’s legal specification for the safety requirements and the way in which operations are controlled − Sweden: national regulation for general safety principles and mechanical equipment, as supervised by the Swedish Radiation Safety Authority (SSM) and inspected by the nuclear inspection bodies. − Finland: national safety regulation and also NPP guidelines (YVL Guides), as prepared by the Radiation and Nuclear Safety Authority (STUK), supported by the technical research organisations and inspection bodies. − France: national regulation and practices, with the regulatory body (ASN), technical support organisation (IRSN) and inspection bodies. − Germany: national regulation and nuclear standards (KTA), with local authorities, support organisation (GRS), and inspection bodies.5 2012-10-15
    • Regulatory framework, Codes, Standards, and Specifications Legal National Framework legislation National Guides (YVL) IAEA Safety Guidelines Mandatory Nuclear Codes (ANSI, ASME, RCCM) Guides Quality Management Stds (NQA-1, ISO) Established Standards (EN, ISO) Licensee Specific Licensee Requirements Requirements Detailed Project Specifications6 2012-10-15
    • Activities contributing to nuclear safety Why is nuclear power plant safety so different?• Safety design − Defense-in-depth. Multiple barriers against radioactive releases into environment. − Safety functions. Process/electrical/automation systems protecting the barriers.• Safety assessment − Reactor dynamics – nuclear fission power generation after disturbances. − Thermal hydraulics – water and steam flow in reactor circuit and containment. − Structures and materials – structural capability, endurance and integrity. − Risk assessment – failure scenarios, accident probabilities and consequences.• Safety management − Safety culture & practices. − Quality assurance & control. − Operation & maintenance.• Regulatory oversight − Licensing & permits. − Reviews & inspections.7 2012-10-15
    • Division into Safety Classes Why is nuclear power plant safety so different?• Safety design − Defense-in-depth. Multiple barriers against radioactive releases into environment. − Safety functions. Process/electrical/automation systems protecting the barriers. Safety Class 3 Safety Class 2 Safety Class 1 Safety Class 48 2012-10-15
    • Safety Classes and their implications to SpecificationsExample from Sweden: Safety Class Safety Class Safety Class Safety Class 1 2 3 4Design and ASME III, NB ASME III, NC ASME III, ND EN 13445strength EN 13480calculationMaterial All materials according to harmonized European standards are approved and accepted. Note that ASME materials are not accepted without additional requirements .Welding Certificate according to EN 729, EN 3834. All welding shall be done according to qualified procedures and by qualified personnel.Manufacturing KBM KBM KBM KBMand ASME III, NB ASME III, NC ASME III, NDInstallation KBM = owners detailed quality specifications for mechanical equipment9 2012-10-15
    • Nuclear Power Plant Construction SpecificationsContentsPart A – Introduction to and prerequisites for Nuclear Power projects1) Brief overview of a NPP and major New Build project phases2) Regulatory framework, Codes, Standards, and Specifications3) Division into Safety Classes and implications to SpecificationsPart B – Opportunities and handling of some challenges in NPP projects1) Experiences on NPP projects2) What is the extent of work in a New Build NPP3) Implications on opportunities from the choice of Specifications4) Important steps to be successful - start prepare in timeSummary10 2012-10-15
    • Experiences on NPP projectsRecent projects in Sweden • PULS (Power Uprate with Licensed Safety) Oskarshamn 3 (BWR). Structural verification of reactor systems, internal parts, turbine systems for increased power. Westinghouse, ALSTOM • FREJ – LOT 3 - Replacement of steam generators in Ringhals 4 – Verification of the structural integrity of reactor systems. AREVA • PLEX Oskarshamn 2, Structural verification of reactor systems, internal parts, turbine systems. AREVA, SIEMENS • GREAT/TURBO - Requalification of Ringhals 3/4 – turbine systems (PWR). ALSTOM • Replacement of RPV-heads I Ringhals 3 and 4 (PWR). MHI • Replacement of Internal parts in Ringhals 1 (BWR). AREVA • Forsmark TU12/MSR. Power uprate. SIEMENS, Balcke Duerr • Forsmark 3, KYR. Preparation of power uprate. Westinghouse • Forsmark 3, Generator replacement. ALSTOM11 10/15/2012
    • Common experiences from NPP projectsSome challenges experienced during the projects• Shortages of experienced designers and welders due to e.g. generation shift• Start of manufacturing before full completion of design and engineering• Worldwide shortage of qualified nuclear equipment manufacturers• Many suppliers not used to the need of extensive documentation in nuclear industry• Requirements not properly communicated through the supplier chain• Personnel and method qualification issues when using a mix of standards and suppliers own practices12 2012-10-15
    • What is the extent of work in a New Build NPP13 2012-10-15
    • Major project phases in NPP New Build projects Why should Licensee be involved during Engineering & Manufacturing in a Turn Key Project 0 >60 Years Planning Engineering Manufacturing & Design & Installation Operation100% initiative by Successive more involvement by Supplier. Licensee has 100%Licensee However, at all times the Licensee still responsibility and interest for needs to maintain project leadership long term operation (also in Turn Key projects) Maintained project leadership by the licensee is essential in all phases since (i) the Licensee has full responsibility and interest for long term operation (ii) this can increase the opportunities for the local industry14 10/15/2012
    • Implications on opportunities• Safety Class 1 and 2: − Only few global suppliers for major components, usually ASME-oriented• Safety Class 3 and 4 and Non-nuclear: − Majority of components and systems belong here- − Good opportunities for smaller suppliers. − The choice of code largely affects opportunities, especially for 4 & non-nuclear• One major effect for any mechanical equipment supplier on the abilities to go nuclear is the choice of Code, ASME or ”EN”, ie European standards.15 2012-10-15
    • Implications on opportunities from choice of SpecificationsChoices for manufacturing of safety critical mechanical equipment:• The ”full ASME-track” − Provides opportunity to export outside Europe (especially US, CAN) − Entire manufacturing adapted to a specific code − Certification by ASME, AIA. All continuous surveillance by manufacturer• The ”European Track” − Choice of European EN-standards gives access to EU-market − Complies with EU-directives − Large involvement of various third parties during manufacturing• The ”mixed Track” − ASME/EN is partly used − Mix between fundamentally different codes for one system gives difficulties• In all cases: − Adjustments must in any case be made to national nuclear legislation16 2012-10-15
    • Important steps to be successful - start prepare in time• Choice of specifications is a basis (national guides and standards)• Start prepare in time: − Detailed requirements breakdown − Training and education of suppliers and sub-suppliers − Qualify personnel and quality systems − Start a forum for cooperation between authorities, licensee and industry17 2012-10-15
    • Expertise area examples for NPP New Build and Operation 0 60 Years Engineering Manufacturing Planning Operation & Design & Installation Evaluation of Manufacturing Codes & Stds Inspections In Service Inspections Suppliers Project Risk Mgmt Load Analysis Welding Technology RevisionsBasic Design Review Structural Integrity NDT & DT Modifications Verification Preplanning for Materials QC Mgmt of Defects 60 years operation Technology Sub Supplier Req Constr License Appl Site installation Life Time Mgmt inspections Regulatory Oper License Appl License Application Training and qualification of personnel at authorities, licensee, suppliers in these areas important18 10/15/2012
    • SUMMARYExamples of initiatives to create opportunities for national industry• Maintained project leadership by the licensee is essential in all project phases• Choice of codes and standards that comply with national and European legislation and also that will promote national manufacturers• Detailed requirements breakdown and then creation of clear specifications for the complete chain of suppliers and sub-suppliers• Specification of both quality and documentation requirements.- high documentation requirements in the nuclear industry• Training and education of suppliers and sub-suppliers – early on in the NPP project initiatives for training jointly by authorities, licensee and industry• Create an open process between Authorities, Licensee, Contractor, Suppliers for cooperative handling of requirements• Continue to build on the national expertise needed to support the nuclear industry19 2012-10-15
    • FINAL WORDS…• Inspecta Annual Nuclear Symposium is arranged 4-5 december 2012. Welcome!• Thanks for listening! …And now on to Part II…! For further inquiries, please contact Inspecta Lithuania, Mr. Mantas Andriuskevicius, Mantas.Andriuskevicius@inspecta.com +370 6151755820 2012-10-15