May-June 2018 NPJ

16 NuclearPlantJournal.com Nuclear Plant Journal, May-June 2018 New Documents EPRI 1. Advanced Nuclear Technology: Identification of Nondestructive Ex- amination Needs for New Nuclear Plant Designs . Product ID: 3002010494. Pub- lished March, 2018. Newnuclear power plant designs have a number of unique characteristics that may make nondestructive examination (NDE) challenging. New components and configurations are incorporated that have not been subjected to an in-service inspection regimen. The experience gained from the current fleet with in- service inspection of nuclear reactor systems has demonstrated that component configurations and surface conditions can severely limit the effectiveness of examinations performed in service. In addition, more rigorous inspection requirements have been instituted over time that new plants will have to meet. This report documents the NDE challenges and needs for new nuclear plants. It builds on the lessons learned from the existing fleet and captures inspection scenarios, commitments, and locations unique to new plant designs. 2. Online Monitoring – Engineering Change Package Content for aDistributed Antenna System and Wireless Vibration Sensors . Product ID: 3002011820. Published April, 2018. Nuclear power plants must reduce operating and maintenance (O&M) costs in order to remain a viable source of baseload electricity generation. One area that can support this need is increased utilization of online monitoring (OLM), which has shown success in the fossil generation industry. OLM has provided significant cost savings within the nuclear power industry through improved reliability (trip avoidance), but additional savings can be obtained through reduced preventive maintenance (PM) costs. In order to expand plant monitoring capabilities, additional sensors need to be deployed. Traditional installation of wired sensors is expensive and can reduce the benefits of the new sensors. Development of common designs for installation of a wireless infrastructure and associated sensors across the commercial nuclear industrywould provide amore economical path for OLM expansion. This report provides content for two engineering change packages that support OLM implementation for nuclear power plant equipment. Specifically, the scope of this report includes design guidance for the installation of 1) a distributed antenna system (DAS) for establishing wireless connectivity within the plant and 2) wireless vibration sensors on a pump motor. These two topics are presented separately so that the engineering change package content can be used independently (for example, allowing use of content for the vibration sensor package without needing the DAS). Content for the engineering change packages is presented in the report appendices using the Common Design Package (CDP) format from the Standard Design Process (SDP). The SDP was developed as part of the U.S. Delivering the Nuclear Promise strategic plan and is detailed in industry procedure IP- ENG-001. The technical content of the design packages can be used in any nuclear power plant worldwide. The Technical contents of this product were prepared as Augmented Quality in accordance with the EPRI Quality Program Manual. All or a portion of the requirements of the EPRI Quality Program have been applied. Work classified as Augmented Quality is not subject to the requirements of 10 CFR Part 21. 3. Guidance for the Use of Reverse- Engineering Techniques: Revision 1 to EPRI TR-107372 . Product ID: 3002011678. Published May, 2018. As the marketplace and manufacturing methods evolve, aging equipment and associated spare parts become increasingly difficult to obtain and may eventually become obsolete. In some cases, reverse-engineering techniques can be used to facilitate replacement of existing items while minimizing the need for extensive design changes. However, risk is inherent when applying reverse-engineering techniques as examination of an existing specimen alone may not be sufficient to ensure that the reverse-engineered design includes provisions that address factors such as how the device functions with interfacing equipment or conditions in the installed environment. Therefore, it is important to understand the design functions of the item to which reverse-engineering techniques are being applied. This report was prepared to assist Electric Power Research Institute (EPRI) members and their suppliers in the effective application of the reverse- engineering techniques and associated design controls necessary to accept the use of designs established through reverse-engineering techniques for use in nuclear power applications. Effective use of reverse-engineering techniques and associated design controls prevent introduction of unintended design changes and associated unevaluated failure modes and mechanisms. 4. BWRVIP-307NP: BWR Vessel and Internals Project, Testing and Evaluation of the Dresden Unit 3 245° Surveillance Capsule . Product ID: 3002012811. Published May, 2018. The report includes capsule neutron exposure and Charpy V-notch test results for Dresden Unit 3 surveillance plate heat C1256-2 and surveillance weld heats DR3 SAW and DR3 ESW. The project compared irradiated Charpy data to unirradiated data in order to determine the shifts in Charpy index temperatures for the surveillance plate and weld materials due to irradiation. The measured shifts for the surveillance plate and surveillance welds are less than the predicted shift + margin using Regulatory Guide 1.99, Revision 2. Researchers also measured flux wires, determined a fluence value for the 245° surveillance capsule, and calculated revised fluence values for the previously-tested 35°, 95°, and 215° surveillance capsules. Results of this work will be used in the BWRVIP ISP that integrates individual BWR surveillance programs into a single program. The ISP provides high quality data for monitoring BWR vessel embrittlement. The ISP results in significant cost savings to the BWR fleet and provides more accurate monitoring of embrittlement in BWR vessels. The above EPRI documents may be ordered by contacting the Order and Conference Center at (800) 313-3774, Option 2, or email at orders@epri.com .