Identification and Assessment of Recent Aging-Related Degradation Occurrences in U.S. Nuclear Power Plants.

Nie, J. ; Braverman, J. ; Hofmayer, C. ; Kim, M. K. ; Choi, I. K.

Technical Information Center Oak Ridge Tennessee

关键词: Nuclear power plants;    Research effort;    Degradation occurrances;    Aging characteristics;    Statistical analysis;   

RP-ID  :  DE2009944618

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

This report describes the research effort performed by BNL for the Year 1 scope of work. This research focused on collecting and reviewing degradation occurrences in US NPPs and identifying important aging characteristics needed for the seismic capability evaluations that will be performed in the subsequent evaluations in the years that follow. The report presents results of the statistical and trending analysis of this data and compares the results to prior aging studies. In addition, this report provides a description of current regulatory requirements, regulatory guidance documents, generic communications, industry standards and guidance, and past research related to aging degradation of SSCs. Finally, this report provides the conclusions reached from this research effort, which includes a summary of the findings from the identification and evaluation effort of degradation occurrences, an assessment of the degradation trending results, and insights into the important aging characteristics that should be considered in the tasks to be performed in the Year 2 through 5 research efforts.