Over 25-year career includes metallurgical engineering; materials performance; maintenance programs; failure prevention; steam generator programs; boiling water reactor pipe cracking issues; plant improvements; regulatory compliance; welding and heat treatment; corrosion control; maintenance systems; remaining life assessment; metal product manufacturing; chemistry control; and international procurements.
Provided on-site support in the development of steam generator programmatic documentation in support of NEI 97-06 Steam Generator Program Guidelines.
Developed damage models for PWR site to facilitate strategic planning and budgeting for steam generator damage models. These models are site-specific and tailored to the long-term schedule for the site. Provided direct engineering support to steam generator in-service inspections, shotpeening, and tube plugging activity during refueling outage. Assisted utility in diagnosis of foreign object damage in steam generators and recommended diagnostic inspections. Supported litigation activities with corporate legal department.
Provided diagnosis, problem analysis, and problem management of a wide range of nuclear components. These components include pumps from various manufacturers, steam turbines, electric generators, and stationary equipment such as heat exchangers, pressure vessels, and piping. Provided diagnosis and disposition of loose and foreign objects in reactors and steam generators.
EXPERIENCE
PWR Steam Generator Support:
- Day-to-day management of steam generator issues
- Decision analysis for steam generator strategic planning
- Preparation of licensing submittals for steam generator related technical specification changes
- Litigation support
- Research of steam generator fabrication records to determine problem areas
- Development of steam generator extraordinary cost resulting from tube degradation and secondary side fouling
- Development of historical costs associated with steam generator performance and inspection issues
- Projections of effective capacity factor losses
- Replacement power cost analysis
- Projections of additional inspections-direct and contracted cost
- Chemical cleaning strategy and costs
- Repair costs determination
- Licensing costs determination
- Specific efficacy and risks of repair strategies
- Projections of future plugging/repair and other mitigation measures
- Validation of economic modeling inputs
- Cost analysis for steam generator replacement
- Interface with replacement vendors
- Development of steam generator replacement strategies
- Preparation of steam generator related updates for upper management, coowners, regulatory agencies and safety review boards
- Economic modeling of steam generator repair and replacement strategies
- Plant up-rating analysis
BWR Support:
- General metallurgical engineering related to BWR materials performance issues
- BWR reactor internals and reactor-attached component studies
- Hydrogen water chemistry studies
- Preparation of design change packages addressing BWR IGSCC issues
General Support:
- Turbine-generator repair engineering and economic analysis
- Management of inspection agency contracts
- Outage planning
- Conduct of refueling outages
- Steam generator program and procedure development and implementation
- Preparation of technical justification for inspection scope
- Steam generator inspection outage preparation and general support
- Resolution of emergent steam generator inspection issues
- Site-specific steam generator condition monitoring and operational assessment preparation
- Use of third-party software (OPCON) in steam generator run-time problem
- Engineering evaluation of NDE results
- Engineering evaluation of tube pulling, lab analysis, condition assessment of steam generator
- Closure of package for regulatory issues on steam generators
- Decision analysis of steam generator replacement options
- Day-to-day support
- Contractor oversight
- Staff augmentation
- Economic modeling for steam generator repair options
- Damage rate modeling
- Coordination of run time analysis
- Procedure approval for upcoming outage
- Day-to-day steam generator issues
Project Manager, Chemistry Department — Responsible for all aspects of 9.5 million-dollar Hydrogen Water Chemistry Project for Browns Ferry Nuclear Plant. Project objective was to prevent cracking and damage to the reactor internals and piping. Other duties included those related to control of cracking and corrosion damage at all TVA nuclear sites.
Senior Maintenance Specialist — Development and implementation of portions of the TVA Nuclear Power Automated Maintenance Management System. Provided technical direction to field maintenance management for preventive and predictive maintenance programs and post-maintenance testing. Served on field assignments during plant outages in the areas of steam generator plugging and other primary side repair work and turbine-generator special maintenance problems.
Senior Engineer — Assistant to the Manager of Nuclear Maintenance in the engineering and modifications program areas. Ensured that nuclear maintenance activities were closely coordinated and compatible with nuclear engineering policies and programs. Ensured that nuclear engineering standards and specifications were consistently applied at each site in the maintenance program areas.
Metallurgical Supervisor — Supervised steam generator and other major component inspections. Established programs, provided technical direction and strategic guidance to nuclear sites to resolve metallurgical, welding, and materials performance issues. Established programs to monitor materials performance including reactor radiation embrittlement, corrosion/erosion damage in piping, stress corrosion cracking, and other emergent, generic, and plant-specific issues. Established programs to ensure satisfactory materials performance including protective coatings, procurement guidelines, welding, heat treatment, and special metallurgical processes.
Metallurgical Engineer — Performed failure and cause analysis of various power plant component failures. Developed corporate positions on the use of materials, alloys, and special processes including copper alloys in PWR steam, condensate, and feedwater systems. Served as TVA technical specialist to the NRC on various component and material integrity issues.
Senior Research Engineer — Performed materials research to correlate various metallurgical and mechanical properties with field performance. Specialized in Inconel tubing for steam generator application and zircalloy-4 nuclear fuel cladding. Performed laboratory analysis of failures of various nuclear and fossil power equipment. Generated a statistically significant body of data on fracture toughness and related materials properties for nuclear pressure boundary materials. Evaluated materials in the areas of creep, creep/fatigue interaction, and related material properties.
Product Development Engineer — Developed new and innovative manufacturing and metallurgical processing techniques for the production of tubing, wire, and other specialty metallic products.
EDUCATION AND PROFESSIONAL BACKGROUND
- B.S. (Metallurgical Engineering), University of Missouri, Rolla - 1970
Graduate Studies:
- Deformation and Fracture, University of Tennessee - 1975
- Fatigue, Pennsylvania State University - 1977
SELECTED REPORTS, PUBLICATIONS, AND INVITED LECTURES
Actions Taken to Reduce Steam Generator Lead Ingress, APTECH Report AES 01084481-1-2 (January 2002).
Actions Taken to Reduce Steam Generator Lead Ingress - Summary of Status Evaluation, APTECH Report AES 01084481-1-1 (September 2001).
Engineering Review of Steam Generator Sleeving Performance and Consideration Specific to San Onofre Nuclear Generating Station Conditions, with Y. Garud and P. Berge, APTECH Report AES 97113241-1-1 (October 1998).
Long Term Damage Management Strategies for Optimizing Steam Generator Performance, Structural Mechanics in Reactor Technology, with G.R. Egan, et al. (1991).
Safe End/Nozzle Repairs/Replacements: A Utility Perspective, Electric Power Research Institute (1987).
Structural Reinforcement of Recirculation Manifold to Riser Sweepolet Welds by Weld Overlay Analysis and Application, Electric Power Research Institute (1983).
Fracture Toughness of Ferritic Materials in Light Water Nuclear Reactor Vessels, Electric Power Research Institute RP 232-2 (with T.U. Marston, et al.). |
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