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Title: Criteria and Planning Guidance for Ex-Plant Harvesting to Support Subsequent License Renewal

Abstract

As U.S. nuclear power plants look to subsequent license renewal (SLR) to operate for a 20-year period beyond 60 years, the U.S. Nuclear Regulatory Commission and the industry will be addressing technical issues around the capability of long-lived passive components to meet their functionality objectives. A key challenge will be to better understand likely materials degradation mechanisms in these components and their impacts on component functionality and margins to safety. Research addressing many of the remaining technical gaps in these areas for SLR may greatly benefit from materials sampled from plants (decommissioned or operating). Because of the cost and inefficiency of piecemeal sampling, there is a need for a strategic and systematic approach to sampling materials from structures, systems, and components (SSC) in both operating and decommissioned plants. This document describes a potential approach for sampling (harvesting) materials that focuses on prioritizing materials for sampling using a number of criteria. These criteria are based on an evaluation of technical gaps identified in the literature, research needs to address these technical gaps, and lessons learned from previous harvesting campaigns. The document also describes a process for planning future harvesting campaigns; such a plan would include an understanding of the harvesting priorities,more » available materials, and the planned use of the materials to address the technical gaps.« less

Authors:
 [1];  [1];  [1];  [1];  [1]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1413395
Report Number(s):
PNNL-27120
453040371; TRN: US1801166
DOE Contract Number:
AC05-76RL01830
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; NUCLEAR POWER PLANTS; LICENSES; PLANNING; NUCLEAR POWER

Citation Formats

Ramuhalli, Pradeep, Devanathan, Ram, Meyer, Ryan M., Glass, Samuel W., and Knobbs, Katherine J. Criteria and Planning Guidance for Ex-Plant Harvesting to Support Subsequent License Renewal. United States: N. p., 2017. Web. doi:10.2172/1413395.
Ramuhalli, Pradeep, Devanathan, Ram, Meyer, Ryan M., Glass, Samuel W., & Knobbs, Katherine J. Criteria and Planning Guidance for Ex-Plant Harvesting to Support Subsequent License Renewal. United States. doi:10.2172/1413395.
Ramuhalli, Pradeep, Devanathan, Ram, Meyer, Ryan M., Glass, Samuel W., and Knobbs, Katherine J. Thu . "Criteria and Planning Guidance for Ex-Plant Harvesting to Support Subsequent License Renewal". United States. doi:10.2172/1413395. https://www.osti.gov/servlets/purl/1413395.
@article{osti_1413395,
title = {Criteria and Planning Guidance for Ex-Plant Harvesting to Support Subsequent License Renewal},
author = {Ramuhalli, Pradeep and Devanathan, Ram and Meyer, Ryan M. and Glass, Samuel W. and Knobbs, Katherine J.},
abstractNote = {As U.S. nuclear power plants look to subsequent license renewal (SLR) to operate for a 20-year period beyond 60 years, the U.S. Nuclear Regulatory Commission and the industry will be addressing technical issues around the capability of long-lived passive components to meet their functionality objectives. A key challenge will be to better understand likely materials degradation mechanisms in these components and their impacts on component functionality and margins to safety. Research addressing many of the remaining technical gaps in these areas for SLR may greatly benefit from materials sampled from plants (decommissioned or operating). Because of the cost and inefficiency of piecemeal sampling, there is a need for a strategic and systematic approach to sampling materials from structures, systems, and components (SSC) in both operating and decommissioned plants. This document describes a potential approach for sampling (harvesting) materials that focuses on prioritizing materials for sampling using a number of criteria. These criteria are based on an evaluation of technical gaps identified in the literature, research needs to address these technical gaps, and lessons learned from previous harvesting campaigns. The document also describes a process for planning future harvesting campaigns; such a plan would include an understanding of the harvesting priorities, available materials, and the planned use of the materials to address the technical gaps.},
doi = {10.2172/1413395},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Dec 07 00:00:00 EST 2017},
month = {Thu Dec 07 00:00:00 EST 2017}
}

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