Development, analysis, and evaluation of a commercial software framework for the study of Extremely Low Probability of Rupture (xLPR) events at nuclear power plants.
Abstract
Sandia National Laboratories (SNL) participated in a Pilot Study to examine the process and requirements to create a software system to assess the extremely low probability of pipe rupture (xLPR) in nuclear power plants. This project was tasked to develop a prototype xLPR model leveraging existing fracture mechanics models and codes coupled with a commercial software framework to determine the framework, model, and architecture requirements appropriate for building a modular-based code. The xLPR pilot study was conducted to demonstrate the feasibility of the proposed developmental process and framework for a probabilistic code to address degradation mechanisms in piping system safety assessments. The pilot study includes a demonstration problem to assess the probability of rupture of DM pressurizer surge nozzle welds degraded by primary water stress-corrosion cracking (PWSCC). The pilot study was designed to define and develop the framework and model; then construct a prototype software system based on the proposed model. The second phase of the project will be a longer term program and code development effort focusing on the generic, primary piping integrity issues (xLPR code). The results and recommendations presented in this report will be used to help the U.S. Nuclear Regulatory Commission (NRC) define the requirements formore »
- Authors:
- Publication Date:
- Research Org.:
- Sandia National Laboratories
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1005032
- Report Number(s):
- SAND2010-8480
TRN: US1101251
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Technical Report
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; COMPUTER CODES; FRACTURE MECHANICS; NOZZLES; NUCLEAR POWER PLANTS; PIPES; PRESSURIZERS; PROBABILITY; RECOMMENDATIONS; RUPTURES; SAFETY; SANDIA NATIONAL LABORATORIES; STRESS CORROSION; SURGES; WATER; WELDED JOINTS
Citation Formats
Kalinich, Donald A., Helton, Jon Craig, Sallaberry, Cedric M., and Mattie, Patrick D.. Development, analysis, and evaluation of a commercial software framework for the study of Extremely Low Probability of Rupture (xLPR) events at nuclear power plants.. United States: N. p., 2010.
Web. doi:10.2172/1005032.
Kalinich, Donald A., Helton, Jon Craig, Sallaberry, Cedric M., & Mattie, Patrick D.. Development, analysis, and evaluation of a commercial software framework for the study of Extremely Low Probability of Rupture (xLPR) events at nuclear power plants.. United States. doi:10.2172/1005032.
Kalinich, Donald A., Helton, Jon Craig, Sallaberry, Cedric M., and Mattie, Patrick D.. Wed .
"Development, analysis, and evaluation of a commercial software framework for the study of Extremely Low Probability of Rupture (xLPR) events at nuclear power plants.". United States.
doi:10.2172/1005032. https://www.osti.gov/servlets/purl/1005032.
@article{osti_1005032,
title = {Development, analysis, and evaluation of a commercial software framework for the study of Extremely Low Probability of Rupture (xLPR) events at nuclear power plants.},
author = {Kalinich, Donald A. and Helton, Jon Craig and Sallaberry, Cedric M. and Mattie, Patrick D.},
abstractNote = {Sandia National Laboratories (SNL) participated in a Pilot Study to examine the process and requirements to create a software system to assess the extremely low probability of pipe rupture (xLPR) in nuclear power plants. This project was tasked to develop a prototype xLPR model leveraging existing fracture mechanics models and codes coupled with a commercial software framework to determine the framework, model, and architecture requirements appropriate for building a modular-based code. The xLPR pilot study was conducted to demonstrate the feasibility of the proposed developmental process and framework for a probabilistic code to address degradation mechanisms in piping system safety assessments. The pilot study includes a demonstration problem to assess the probability of rupture of DM pressurizer surge nozzle welds degraded by primary water stress-corrosion cracking (PWSCC). The pilot study was designed to define and develop the framework and model; then construct a prototype software system based on the proposed model. The second phase of the project will be a longer term program and code development effort focusing on the generic, primary piping integrity issues (xLPR code). The results and recommendations presented in this report will be used to help the U.S. Nuclear Regulatory Commission (NRC) define the requirements for the longer term program.},
doi = {10.2172/1005032},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Dec 01 00:00:00 EST 2010},
month = {Wed Dec 01 00:00:00 EST 2010}
}
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For the U.S. Nuclear Regulatory Commission (NRC) Extremely Low Probability of Rupture (xLPR) pilot study, Sandia National Laboratories (SNL) was tasked to develop and evaluate a probabilistic framework using a commercial software package for Version 1.0 of the xLPR Code. Version 1.0 of the xLPR code is focused assessing the probability of rupture due to primary water stress corrosion cracking in dissimilar metal welds in pressurizer surge nozzles. Future versions of this framework will expand the capabilities to other cracking mechanisms, and other piping systems for both pressurized water reactors and boiling water reactors. The goal of the pilot studymore »
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Reactor safety study. An assessment of accident risks in U. S. commercial nuclear power plants. Appendix XI. Analysis of comments on the draft WASH-1400 report. [PWR and BWR]
Information is presented concerning comments on reactor safety by governmental agencies and civilian organizations; reactor safety study methodology; consequence model; probability of accident sequences; and various accident conditions. -
SUPPLEMENTAL DATA FOR NUCLEAR-CONVENTIONAL POWER PLANT COST STUDY CONVENTIONAL COAL FIRED POWER PLANTS, 25,000 KW TO 325,000 KW. FOR EVALUATION AND PLANNING BRANCH, DIVISION OF REACTOR DEVELOPMENT ATOMIC ENERGY COMMISSION
Projected investment costs (1959 to 1975) are given for conventional coal-fired power plants of 25, 60, l00, 200, and 325 Mw capacity. Estimated power generation costs are given for coal priced at 25, 30, and 35 cents per million BTU and for the largest nominal size turbine-generator unit in service in 1959, 1968. and l975. (W.D.M.)