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Title: Evaluation of sampling plans for in-service inspection of steam generator tubes: Modeling of eddy-current reliability data, analytical evaluations, and initial Monte Carlo simulations

Abstract

The Steam Generator Group Project (SGGP) was a multi-task effort using the retired-from-service Surry 2A pressurized water reactor steam generator as a test bed to investigate the reliability and effectiveness of in-service nondestructive eddy current (EC) inspection equipment and procedures. The information that was developed provided the technical basis for recommendations for improved in-service inspection methods and tube plugging criteria for steam generators. This report is Volume 1 of two volumes documenting the results of analyses performed to evaluate and compare candidate sampling/inspection schemes for in-service inspection of steam generator tubes. The estimated EC inspection reliability determined from round robin examination of the Surry generator was used to guide the selection of input parameters for these analyses. Analytical evaluations of candidate sampling/inspection schemes based on the ranges of probability of detection and probability of exceeding the EC plugging limit, as estimated from the round robin data, are described. Monte Carlo simulation analyses designed to supplement the analytical results and test key assumptions are presented. Finally, conclusions and recommendations for further study are presented. 2 refs., 30 figs., 27 tabs.

Authors:
; ;
Publication Date:
Research Org.:
Nuclear Regulatory Commission, Washington, DC (USA). Div. of Engineering; Battelle Pacific Northwest Lab., Richland, WA (USA)
OSTI Identifier:
5960872
Report Number(s):
NUREG/CR-5161-Vol.1; PNL-6462-Vol.1
ON: TI89014833
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; DEFECTS; DETECTION; PROBABILITY; STEAM GENERATORS; TUBES; EDDY CURRENT TESTING; FAILURES; INSPECTION; MATHEMATICAL MODELS; MONTE CARLO METHOD; RECOMMENDATIONS; RELIABILITY; STATISTICAL DATA; BOILERS; DATA; ELECTROMAGNETIC TESTING; INFORMATION; MATERIALS TESTING; NONDESTRUCTIVE TESTING; NUMERICAL DATA; TESTING; VAPOR GENERATORS; 220200* - Nuclear Reactor Technology- Components & Accessories

Citation Formats

Bowen, W M, Heasler, P G, and White, R B. Evaluation of sampling plans for in-service inspection of steam generator tubes: Modeling of eddy-current reliability data, analytical evaluations, and initial Monte Carlo simulations. United States: N. p., 1989. Web.
Bowen, W M, Heasler, P G, & White, R B. Evaluation of sampling plans for in-service inspection of steam generator tubes: Modeling of eddy-current reliability data, analytical evaluations, and initial Monte Carlo simulations. United States.
Bowen, W M, Heasler, P G, and White, R B. 1989. "Evaluation of sampling plans for in-service inspection of steam generator tubes: Modeling of eddy-current reliability data, analytical evaluations, and initial Monte Carlo simulations". United States.
@article{osti_5960872,
title = {Evaluation of sampling plans for in-service inspection of steam generator tubes: Modeling of eddy-current reliability data, analytical evaluations, and initial Monte Carlo simulations},
author = {Bowen, W M and Heasler, P G and White, R B},
abstractNote = {The Steam Generator Group Project (SGGP) was a multi-task effort using the retired-from-service Surry 2A pressurized water reactor steam generator as a test bed to investigate the reliability and effectiveness of in-service nondestructive eddy current (EC) inspection equipment and procedures. The information that was developed provided the technical basis for recommendations for improved in-service inspection methods and tube plugging criteria for steam generators. This report is Volume 1 of two volumes documenting the results of analyses performed to evaluate and compare candidate sampling/inspection schemes for in-service inspection of steam generator tubes. The estimated EC inspection reliability determined from round robin examination of the Surry generator was used to guide the selection of input parameters for these analyses. Analytical evaluations of candidate sampling/inspection schemes based on the ranges of probability of detection and probability of exceeding the EC plugging limit, as estimated from the round robin data, are described. Monte Carlo simulation analyses designed to supplement the analytical results and test key assumptions are presented. Finally, conclusions and recommendations for further study are presented. 2 refs., 30 figs., 27 tabs.},
doi = {},
url = {https://www.osti.gov/biblio/5960872}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Apr 01 00:00:00 EST 1989},
month = {Sat Apr 01 00:00:00 EST 1989}
}

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