Intelligent Internals Asset Management. Your Integrated Services Provider

Transcription

1 Intelligent Internals Your Integrated Services Provider 1

2 Delivering Intelligent Internals for Your Plant Leveraging our global experience and innovative methodologies, AREVA is at the forefront of industry initiatives to utilize risk-informed decision making to manage nuclear assets. As such, we have developed a Reactor Internals approach that allows you to cost-effectively meet the challenges posed by the emergent baffl e-to-former bolt (BFB) degradation issue. As the world leader in nuclear innovation, AREVA is the only vendor with a proven risk-based solution for robust asset management. Our analytical method incorporates deterministic models, a statistical model for bolt failure, award-winning inspection capabilities, and extensive replacement experience into a probabilistic framework. Using this road map, you can intelligently and pro-actively plan examination intervals, replacement bolt patterns, and outage duration to effectively control cost through end of life (EOL). Did you know... AREVA has been at the forefront of risk-informed decision-making with our probabilistic methodology fi rst implemented in 2008 AREVA has replaced over 8,700 internals bolts worldwide AREVA has inspected over 6,500 baffl e bolts, including recent MRP UT inspections AREVA s methods for analysis and bolt qualifi cation can be performed independent of OEM input AREVA is uniquely qualified to provide proven, effective solutions for managing bolt degradation AREVA s Road Map for BFB Evaluation Deterministic models Statistical model for bolt failure Inspection Probabilistic framework Results Baffle plate specific treatment of uncertainty in BFB degradation Characterization of risk profile for BFB functionality as a function of time Replacement Characterization of risk profile to inform utility decisions for proactive planning: NDE, replacements The only road map that enables you to proactively manage your asset 2 3

3 Our Solution Enables Proactive In an industry challenged by lower-priced electricity options, new approaches are needed to remain viable. This is what the Nuclear Promise Initiative is designed to deliver, and AREVA is staying ahead of the curve to meet this challenge for the BFB issue. With the analytical methodology for BFB re-examination intervals (WCAP ) being challenged, and repair campaigns slow and hard to economically justify, there is a clear need for risk-informed decision-making rather than more costly shotgun approaches. AREVA s probabilistic analytical method is the only approach that is proven, accepted, and eff ective in delivering optimized bolt replacement patterns, re-examination intervals, and bolt examination sampling schemes. Criteria Deterministic Probabilistic AREVA Experience X X OEM Experience X Approach Reactive Predictive Solution Duration Short Term Long Term Outage Impact Unpredictable Predictable Cost High Moderate Cumulative Unbounded Bounded Upflow Modification Likely Less Likely to None To support the probabilistic method, AREVA can perform the structural analysis necessary for OEM independence moving forward. Structural analysis determines if a specifi c bolting pattern maintains the structural integrity of the core barrel assembly Once performed, minimum bolting patterns will be provided as part of AREVA s Asset Management program. 4 5

4 Intelligent, Proven Baffle Bolt Inspection AREVA s Award-Winning Vessel Inspection Technology Provides Proven Baffle Bolt Inspection Capability Extensive MRP-227 baffl e bolt examination experience in all plant designs, including 4-loop Westinghouse plants Industry-leading innovation NEI TIP Best of the Best Awards fi ve consecutive years, including VT and UT examinations and our 2012 baffl e bolt exam and engineering analysis at Ginna Baffl e bolt UT and VT is performed by our proven, robust Submarine System for Inspection (SUSI) Examine more than 20 bolts/hour Remotely operated from outside containment Data acquired and digitally recorded Real-time analysis and dispositioning AREVA has the experience and the tools ready to deploy for your outage 6 7

5 AREVA Has Replaced Over 8,700 Internals Bolts Other technologies Average 5 days to set up AREVA s approach Average 1 day to set up Replaced more bolts than any other vendor Recent bolt replacements include Clevis bolts in 2013 Baffl e bolts in 2011 Production rate ~ 10 bolts per day with single mast ~ 15 bolts per day with dual mast Less setup and teardown time than other baffl e bolt replacement technologies Improved bolt design for lower stress concentrations no qualifi cation necessary Crimp cup locking mechanism no welding required for installation Mast extension allows replacement with core barrel in the vessel Compact tool heads do not require hoists for removal Improved EDM fi lter system design for lower dose and water clarity Extensive EDM experience for reliable production rates Eliminates risk of FME vs conventional machining Eliminates machining issues with embrittled materials Average 5 days teardown/demobilize Machined chips in lower internals Continuous polar crane utilization suspends outage activities Mechanical tapping for contingency Average 3 days teardown/demobilize EDM machining in lower internals leaves no highly radioactive debris Intermittent polar crane utilization allows outage activities to continue EDM tapping for contingency EDM eliminates FME risks and provides proven, reliable performance at a lower cost. 8 9

6 Why AREVA for Intelligent Internals Extensive relevant worldwide experience & proven technology The only proven probabilistic analytical method to predict bolt degradation behavior and reduce costs An alternative for structural analysis without OEM input Award-winning baffl e bolt UT and VT inspection techniques with proven production rates Repair tooling and processes based on existing bolt replacement equipment used in over 8,700 previous applications EDM process is used for all machining operations to avoid FME concerns Improved bolt design for lower stress concentrations AREVA is committed to safely addressing baffle bolt degradation while minimizing operational risk and costs

7 AREVA in North America (AREVA Inc.) combines U.S. and Canadian leadership to supply high added-value products and services to support the operation of the commercial nuclear fleet. Globally, AREVA is present throughout the entire nuclear cycle, from uranium mining to used fuel recycling, including nuclear reactor primary circuit design and fabrication, and operating fleet engineering and services. AREVA is recognized by utilities around the world for its expertise, its skills in cutting-edge technologies, and its dedication to the highest level of safety. AREVA Inc. s 4,100 employees are helping build tomorrow s energy model: supplying ever safer, cleaner and more economical energy to the greatest number of people. us.areva.com For more information, contact: The AREVA Engineering Control Center Tel: EngineeringControlCenter@areva.com The AREVA Outage Control Center Tel: OutageControlCenter@areva.com Heshan Gunawardane Engineering Sales Manager Installed Base Projects Tel: Heshan.Gunawardane@areva.com AREVA Inc. Corporate Headquarters 7207 IBM Drive, Charlotte, NC us.areva.com Photos by Warren Wright and AREVA. The data contained herein are solely for your information and are not to be construed as a warranty or other contractual obligation AREVA Inc. All Rights Reserved. ANP-U-625-V1-16-ENG 12