Full-scope BWR Services

1Grounded in ExperienceToshiba and ABB nuclear technology, Westinghouse operating experience, and career BWR technical talent have converged to make Westinghouse one of the worlds premier BWR service organizations, focused on your operating plant success through safe and reliable operation maximized power outputand improved outage performance.

Since 1980 Westinghouse has supplied products and services to BWR nuclear plants around the world and has helped these plants meet the ever-present challenge of improving availability, performance and safety.

Westinghouse BWR Services: A Full Complement of Service Solutions for Your BWR Plant Needs

Westinghouse Electric Company, the worlds pioneering nuclear power company, supplied the first commercial pressurized water reactor (PWR) in 1957 at Shippingport, Pennsylvania (USA). Today, Westinghouse is a fully integrated, worldwide supplier of both pressurized water reactor (PWR) and boiling water reactor (BWR) services.

In 2000 ABBs nuclear businesses (ABB Atom) were integrated into Westinghouse Electric Company and renamed, Westinghouse Atom ABB. This acquisition further expanded Westinghouses BWR capabilities and market presence. Six years later, Westinghouse was acquired by Toshiba Corporation, one of the worlds largest global nuclear power organizations. Toshiba has made significant investments in BWR technology and is now widely regarded as an industry leader in state-of-the-art BWR technology.

2Westinghouse experience plus Toshiba and ABB technology a winning combination

for BWR plant success.

In 2009, the company officially opened its U.S. Boiling Water Reactor Service Center in Chattanooga, Tennessee (USA). At this unique service site, customers, industry representatives and employees receive training on the safe maintenance and refueling of boiling water reac-tors in U.S., and some European, nuclear power plants. The Service Center features a full-scale BWR cavity with vessel, internals, spent fuel pool and refueling bridge, two 33-ton cranes and an undervessel mock-up.

Westinghouse, a leading supplier to the nuclear power industry, has personnel at locations around the world supplying technology-based and experience-proven products and services to the BWR fleet. With 139 operating units, Toshiba and Westinghouse today represent the largest worldwide nuclear operations experience base, with BWRs making up more than 20 percent of their combined original equipment manufacturer (OEM) fleet. Toshibas 17 BWR plants in Japan and Westinghouses 9 BWR OEM plants (original ASEA-Atom NSSS) in the Nordic region provide a global OEM experience base. Westinghouse has expanded its investment in BWR support in recent years with the addition of BWR-focused engineering offices in San Jose, California; and Charlotte, North Carolina (USA).

Dallas, TXGlen Rose, TX

Windsor, CT

Charlotte, NC

Chattanooga, TN

Nivelles, Belgium

Cranberry Twp., PAMonroeville, PAMadison, PANew Stanton, PA

San Jose, CA

Seattle, WARichland, WA

Lake Bluff, ILBurr Ridge, IL

Spartanburg, SCRock Hill, SC

Rockville, MD

Shoreview, MN

Vsters, SwedenTby, Sweden

Madrid, SpainTerragona, Spain

Orsay, FranceLyon, FranceMarseille, France

Hamburg, GermanyMannheim, Germany

Pretoria, Republic of South AfricaCape Town, Republic of South Africa

Tokyo, JapanKobe, Japan

Global Technology and Process with

Local, Operationally ExcellentImplementation

= Locations whereBWR Services workis being performed

Refueling Reactordisassembly/reassembly Fuelmovement In-coreandcanisterfuelsipping Vesselmaintenance

Refueling Equipment and Fuel Handling Design,manufactureandinstallationof fuel-handling equipment and outage-critical cranes, including maintenance, upgrades and modernization through Westinghouse subsidiary PaR Nuclear Studcarousel Studtensioningequipment Multi-lifttool(WestinghousePatented) - Increases efficiency of control rod blade exchange and shuffle Assetmanagement

Fuel and Fuel Services ControlRodBlades - Supply - Storage optimization (cutting) - Visual - Profilometry

Westinghouse has a proven track record of successful outage services at BWR plants worldwide. Westinghouse works with customers to identify and address key performance improvement areas to limit variability in outage cost and schedule.

AdvancedBWRfuel Fuelreceiptandinspection Reloadengineering Channelinspection - Bow - Length - Oxide - Coupon samples ShuffleWorks Pool-to-PadandDryCaskSpentFuel Storage Services including spent fuel canister welding

In-Vessel Non-destructiveExaminations(NDE)tomeet BWRVesselInternalsProgram(BWRVIP) guidelines including reactor vessel and internal components, such as shroud and jet pumps

Undervessel InstrumentationandControlsystem maintenance ControlRodDriveMechanism(CRDM) exchange and rebuild HydraulicControlUnit(HCU)maintenance

outage services

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Chemical Decontamination and Cleanings FullSystemDecontamination(FSD)withfuel removed or fuel in Reactorrecirculationsystemdecontamination Reactorwatercleanupsystem decontamination Residualheatremovalsystem decontamination (online or during outage) Fuelpoolcoolingsystemdecontamination (online or during outage) In-situandfixedbasecapabilitiesforreactor coolant pump decontamination Cleaningofbiologicallyfouledsystems Back-washablefiltration

Temporary Fuel Pool Cooling Systems Rangingfrom5MBTU/hrto40MBTU/hr

Emergent Issues Response Operabilitydetermination Loose/lostpartsanalysis Emergentreactorinternalsrepair Reactorpressurevesselnozzle repair/mitigation

Tooling Abilitytorefurbishandtestbothcontaminated and clean refuel tooling - Contaminated tooling at Waltz Mill facility - Clean tooling at Chattanooga facility Developmentoftoolingtosupportemergent outage needs

Rotating Equipment Services Pumpandmotorreplacement,including reactor recirculation pumps and motors Turbinegeneratorinspectionand maintenance services Contaminatedmotorrefurbishment

BEFORE AFTER BEFORE AFTER

Jet Pump RS-1 weld repair

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Internals Repair InnovationJet Pump RS-1 weld cracking has occurred at several BWR nuclear plants in the United States and Asia. These instances generally have been intergranular stress corrosion cracking related; however, the cracking has been accelerated due to fatigue loading brought on by vibrations in the jet pump assembly. Westinghouse recently repaired two (2) RS-1 welds. The repair design employs slots and pockets that havebeenElectricalDischargeMachined(EDM) into the pipe wall to secure a clamp. The clamp structurally replaces the functionality of the RS-1 weld.

In-service Inspections IVVI(in-vesselvisualinspection) Automatedreactorpressurevesselinside diameter(ID) Manualreactorpressurevesseloutside diameter(OD)shellwelds,nozzletoshell welds, nozzle inner radius area AutomatedcoreshroudUltrasonicTesting (UT) examination Jetpumpdiffuser/adapterIDUT DryerID/ODvisualinspection Topguidevisualinspection Belowcoreplateinspection Bottomheaddraininspection Flow-AcceleratedCorrosion(FAC)exams Feedwaternozzleinspections

Inspection Equipment DUITDouble-upinspectiontoolfor vessel internals visual inspections in parallel with fuel movement and reactor maintenance activities

inspectionWestinghouse provides a complete line of inspection services utilizing state-of-the-art equipment and technologies. Among the more recently launched technologies is anin-vesselvisualinspection(IVVI)devicedesignedtoimprovethequalityofvisualinspections, while providing significant critical path savings during refueling outages.

WISE(WestinghouseIntelligentStreaming Examination) inspection data internet platformforstreamingofIVVIandother inspection data to remote locations

Automated and Manual Balance-of-plant Examinations Piping Supports

Ultrasonic Testing display of reactor pressure vessel component examination

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Rotating Equipment Services Westinghouseoffersacompletelineof turbine generator specialty inspections, including rotor bore, retaining ring, phased array blade attachment, and comprehensive general turbine generator non-destructive examination(NDE)inspections

DUIT Thedouble-upinspectiontool(DUIT)isan in-vesselvisualinspection(IVVI)devicedesignedto improve the quality of visual inspections in boiling water reactors while providing significant critical path savings during refueling outages. TheDUITtoolisspecificallydesignedto perform the visual inspections in parallel with fuel movement and reactor maintenance activities without interfering with the other operations that require the refueling or auxiliary platforms.

Retaining ring scanner

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Fluid Dynamics-based ResonanceWestinghouse has the capability to test and analyze the effect of vortex shedding, which results in unwanted acoustic resonance. Mitigation approaches have been developed, from changing the flow field to addressing the resonance directly. Installation of an Acoustic Side Branch (ASB) modifies the resonance that exists in the standpipes connecting the main steam lines (MSLs) to the safety relief valves (SRVs).TheadditionoftheASBtothestandpipeshifts the resonant frequency of the standpipe, thereby eliminating the acoustic standing wave generated by vortex shedding at EPU flow conditions. This provides a dampening effect on the acoustic energy input into the system.

mitigationWestinghouse mitigation products provide proactive approaches to preventing issues and avoiding costly repairs.

Underwater Laser Beam Weld Repair Fullyautomaticviableunderwaterrepair option

Underwater Laser Beam Welding ProcessIn the past, underwater welding was typically performed manually or using mechanized welding equipment and an arc welding process. Today, the welding and machining group of Westinghouse has added laser beam welding to its toolbox as a viable underwater repair option for use in the nuclear power industry.

Mitigating effect of ASB on resonance before and after installation

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Debris TrapTheWestinghouseBWRDebrisTrapprevents debris from entering the reactor pressure vessel (RPV)whereitmaycausefuelfailuresorcontrolroddrive(CRD)malfunction.Theaxial centrifugal separator isolates and captures debris, preventing the debris from returning back into the main liquid flow. The captured debris is removed via an access connection.

Main features: Highseparationperformance Nomovingparts Low-flowresistance

In-lineinstallation(insideoroutside containment) Lowmaintenanceremovalofdebrisfrom the debris trap occurs during routine maintenance outage Removesdebrisasopposedtojuststopping it at some point in the system Cantrapsmallersizedebristhanthe fuel filters

Laser Peening

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Laser peening process

Laser peening of core shrouds provides a long-term solution to relieve stresses that contribute to core shroud cracking.This mitigation helps to avoid potential shroud modifications, which add additional hardware to an already congested annulus. Laser peeningcanalsobeperformedonCRDstubtubes and many other in-vessel welds.

REPLACEMENT COMPONENT SERVICES

Westinghouse supplies qualified replacement parts and components, including motors, switchgear, motor control centers, process control modules, relays and molded case circuit breakers. Services include: Class1Eandsafety-relatedpartsand components Engineering,operationalandtechnicalsupport Balance-of-plantspares Replacementbreakersforcompetitor equipment Replacementofexistinginstrumentationand control (I&C) systems with state-of-the-art- digital control systems

REACTOR EQUIPMENT REPLACEMENT AND INSTALLATION

Component Replacement and InstallationDesign,engineering,fabricationandinstallationof major components, including:

replacementWestinghouse replacement parts ensure continuous operation. To address long-term performance and upgrade needs, Westinghouse provides engineering, procurementandconstruction/installationservicesforcomponentreplacementand installation.

Steamdryer - Proven capabilities and extensive experience More than 200 years of operation without failure - Polygon structural design ensures a symmetrical loading of the dryer, reducing steam flow velocities, which minimizes structural dynamic loads - Drainchannelsareintegratedintothedryer framework, eliminating the need for added drain channels and welds - DemonstratedperformanceatExtended Power Uprate conditions, including superior moisture carry-over performance - Acoustic and structural analyses - Instrumentation and data acquisition - State-of-the-art proprietary analysis tools - Electric Power Research Institute (EPRI) BoilingWaterReactorVesselInternals Project(BWRVIP)-endorsed methodologies - Repair - Segmentation of existing dryer Steamseparator - Highperformance(lowmoistureinputto steam dryer) - Low pressure drop Reactorinternals Coreshroud Primarysystemmodifications Controlrodblades

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Valverefurbishmentandreplacement Corespraypiping Jetpumpcomponents(beams,inletmixer) Shroudheadboltreplacement Feedwaterheater Pipingreplacement Moistureseparatorreheater Condenser

Engineering, Procurement and Construction Projectmanagement Designengineering Installation/rigging Cuttingandwelding

Digital Technologies FieldProgrammableGateArray(FPGA)safety upgrades Safetyandmonitoringsystemupgrades Informationandcontrolsystemupgrades Full-scopeI&Csolutionsfornewbuild ControlRoomsolutions Alarmmanagementsystemsolutions Computerizedproceduresystemsolutions Simulatorsystemandsubsystemsolutions

Instrumentation and Control (I&C) Services Fieldservicesandinstallations Assetmanagementandaftermarketsupport Equipmentqualificationandcommercial dedication

Replacement/modificationstoelectrical, safety and control systems to support extended power uprates VintageI&Csystemssupportoperation

Rotating Equipment Services Inpartnershipwithourmajorityowner, Toshiba Corporation, Westinghouse can provide complete turbine generator component replacementincludingHPturbines,LP turbines and generators.

Hybrid Control Room UpgradesInstrumentation and Controls System Replacements

Commonplatformsbasedonstandard products from ABB and Emerson are typically configured in redundant manners to reduce single points of failure. These platforms are the basis for our safety and control system upgrades.

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Plant Modification Engineering ServicesWestinghouse has the global knowledge, reach and experience to provide total engineering solutions across the entire nuclear plant, beyond traditional nuclear steam supply system (NSSS) services. Componentinstallationservices Designchangepackages Installationengineering Balance-of-plantsystemanalysisand optimization On-sitescreeninganddatacollection Interferenceanalysis Constructionmanagementandprocurement support Scoping/feasibilitystudies NSSSspecialtyandgeneralconstruction support Balance-of-plantconstructionmanagement

repair

Engineering Power Uprate Support Steamline/dryeracousticanalysis Mainsteamlinestraingaugeinstallation Structuralresponse(loadcombinations) Powerascensionreal-timestressanalysis Mitigationofacousticresonance Feasibilitystudies Steamdryeracousticloaddefinition Systemsevaluationandmodification Licensingsupport Implementationsupport NSSSanalysis Agingmanagementandlicenserenewal

Westinghouse provides analytical solutions to your engineering challenges in a variety of disciplines including: flow, vibration, structural, radiological, components, systems, transient, seismic, setpoints and containment. Innovative repair or modification techniques are employed to address emergent issues and extend plant life.

(engineering, analysis, and modifications and repairs)

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Steam Dryer Acoustic TechnologyWestinghouse provides a state-of-the-art approach to define steam dryer acoustic loads and evaluate dryer structural integrity. This approach takes into account conditions at current licensed thermal power and potential uprated conditions, as required by regulatory guidelines. EndorsedbyEPRIsBWRVesselInternals Project(BWRVIP)andusedonrecently approved BWR Extended Power Uprates (EPUs) Powerascension(real-timestressanalysis) Mitigationofacousticresonances Modification/replacement Regulatorysupport Auxiliaryservices(straingaugeand accelerometer installation)

Steam dryer acoustic load definitiontesting apparatus

Steam Dryer Technologyand ReplacementThe Electric Power Research Institutes BWRVesselandInternalsProject (BWRVIP)theindustryusersgroupthatfocuses on BWR vessel internals has authoredatopicalreport,BWRVIP-194:MethodologiesforDemonstratingSteamDryerIntegrity for Power Uprate. The report is based on Westinghouse technology acquired from ContinuumDynamicsInc.(CDI). ThepurposeofBWRVIP-194istodelineatethe methodology in a single document to allow generic U.S. Nuclear Regulatory Commission (NRC) approval. This will permit plants using the methodology to experience faster acceptance times for power uprate applications.

Steam Dryer Typical Flow Paths

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AnalysisLOCA Analysis LOCAanalysisisperformedusingthe Westinghouse BWR Emergency Core Cooling System (ECCS) evaluation model. This model uses the GOBLIN series of codes and complies with U.S. Nuclear Regulatory Commission (NRC) 10CFR50, Appendix K requirements. Westinghouse can perform analyses and evaluations covering the following LOCA-related areas: - Fast and slow transients - Stability - Loss-of-coolant accident (LOCA), and containment analysis

Containment Analysis Westinghousehasmorethan30yearsof experience in performing nuclear plant containment analyses, has developed and licensed analysis codes and also effectively used industry codes, such as GOTHICandRELAP,toprovidesolutions for a number of issues at nuclear plants. - Offer improvements in peak temperature and pressure over traditional methods - Minimize the need for design changes - Provide relief in environmental qualification requirements - Enable lower pressure for containment leak testing

Transient Analysis POLCA-Tadvanced3Dkineticstransient code

Fastandslowtransients DeterminationofMinimumCriticalPower Ratio (MCPR) Full3Dcoremodelformorerealistic Anticipated Transient Without Scram (ATWS) and core stability analyses ReactivityInsertionAccident(RIA)analyses

Neutron Fluence Analysis WestinghouseoffersNRC-approvedNeutron Fluence Analysis methodology for reactor pressure vessel and internals. The methodology has a low uncertainty error band and requires no bias to be applied to the calculated results. It has been used in the United States and Europe.

Plant Performance Improvement Outageoptimization Feedwaterdebristrap Radiologicalgasmanagement Emergentengineeringissues Laserpeening Alternatedecayheatremoval WESTEMSthermalfatiguemanagement/ monitoring, equipment lifetime monitors Valvediagnostics/maintenance Sumpstrainerproducts,chemistryanalysisof consumable materials Fuelstoragerackevaluation Fueldropanalysis Fuelbundleanalysis Reactorvesselinternalsstressanalysis

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Gas Voids AnalysisWestinghouse capabilities covering the entire range of NRC requirements listed in GL-2008-01 include the following: Licensingbasis Designbasis Testing Correctiveactions

Risk Applications and Methods ProbabilisticRiskAnalysis(PRA)scopeand technical adequacy PRAregulatoryassistance PRAoperationalassistance PRAstandardsupgradesandpeerreview

GOTHIC Analysis CapabilitiesMany years of thermal-hydraulic transient analysis experience, coupled with experience in the development and licensing of applications involvingGOTHIC,havemadeWestinghouseuniquely qualified to develop, qualify and license models to perform analyses for a wide range of applications.

Westinghouse gas transport test loop

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In-VesselOver the past 20 years, Westinghouse has successfully performed more than 100 repairs on BWR reactor pressure vessels and internal components worldwide. Westinghouse has the capability to perform the following: Coreplateplugs(neworreplacement) Coresprayspargerrepair Corespraypipingrepair Jetpumpsensinglinerepair Jetpumpriserrepair Jetpumpslipjointclampmitigation Jetpumpswinggaterepair Jetpumpmainwedgereplacement Jetpumpaux(auxilliary)wedgeinstallation JetpumpRS-1repair Lasersealweldrepair Lasercladweldrepair Coreshroudtierodrepair In-coremonitorhousingrepair CRD(ControlRodDrive)housing/stubtube repair or replacement Shroudrepair(otherthantierod) Reactorvesseldrainlinerepair Steamdryerrepair

Cutting and Welding NSSSRepairsandModifications - Torus repair - Jet pump riser - Nozzle overlays - Balance-of-plant repairs and modifications - Feedwater piping - Valverefurbishment

Modification and Repairs

Capability for On-site or Off-site CRD Rebuild AbilitytorebuildCRDassembliesonsiteor off site, if desired Off-siteCRDrebuildfacilityofferingreceipt, storage and rebuild capability

Rotating Equipment Services Safety-relatedand/orcontaminatedpumpand motor refurbishment and remanufacture at Waltz Mill site Fieldserviceandrepairsonpumpsand motors Turbinegeneratorstatorandrotorturnkey rewind services.

Contaminated reactor recirculation pump motor in the shop for

remanufacture

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Westinghouse offers additional services to meet your specialized needs.

Training Capabilities

Westinghouses U.S. BWR Service Center in Chattanooga, Tennessee (USA), is used to train Westinghouse employees, customers and industry representatives on the safe maintenance and refueling of boiling water reactors in U.S., and some European, nuclear power plants. The facility features a full-scale BWR cavity with vessel, internals, spent fuel pool and refueling bridge, two 33-ton cranes and an undervessel mock-up.

additional services From its Waltz Mill Site in Madison, Pennsylvania (USA), Westinghouse provides BWR Nuclear Instrumentation System (NIS) and Traversing In-core Probe System (TIPS) training that can be held at the customer location. Westinghouse is currently planning to add integrated plant operations training to its BWR portfolio, ranging from an introduction to BWR to Senior Reactor Operator (SRO) certification equivalency.

Plant Decommissioning and Dismantling (D&D) and Waste Management Fullengineering,licensingandwork supervision Decommissioningstudy Nuclearfacilitydecommissioningplans Reactorvesselandinternalssegmentation and packaging Reactorvesselinternalsremoval Maincomponentdismantling Primaryandbalance-of-plantdecontamination Wastetreatmentandconditioning:equipment design and manufacturing Controlrodbladesegmentation

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New Advanced Boiling Water Reactor (ABWR) Plant Design Engineering Designcertification Safetyanalysis Licensing Structuralanalysis Airplaneimpactanalysis

Probabilisticriskassessment Systemsanalysis Seismicanalysis Plantequipmentandprocedures Pre-serviceInspection/In-serviceInspection (PSI/ISI)program Reactorpressurevesselloading Instrumentationandcontrolsystems

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Westinghouse ... meeting your BWR nuclear plant needs.

U.S. BWR Service Center in Chattanooga, Tennessee (USA)

CONTACT INFORMATION

For more information about Westinghouses BWR services, please visit our web site at:

www.westinghousenuclear.com/bwr

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