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Title: Summary Describing Integration of ERM Methodology into Supervisory Control Framework with Software Package Documentation; Advanced Reactor Technology Milestone: M4AT-16PN2301052

Abstract

This project involved the development of enhanced risk monitors (ERMs) for active components in Advanced Reactor (AdvRx) designs by integrating real-time information about equipment condition with risk monitors. Health monitoring techniques in combination with predictive estimates of component failure based on condition and risk monitors can serve to indicate the risk posed by continued operation in the presence of detected degradation. This combination of predictive health monitoring based on equipment condition assessment and risk monitors can also enable optimization of maintenance scheduling with respect to the economics of plant operation. This report summarizes PNNL’s multi-year project on the development and evaluation of an ERM concept for active components while highlighting FY2016 accomplishments. Specifically, this report provides a status summary of the integration and demonstration of the prototypic ERM framework with the plant supervisory control algorithms being developed at Oak Ridge National Laboratory (ORNL), and describes additional case studies conducted to assess sensitivity of the technology to different quantities. Supporting documentation on the software package to be provided to ONRL is incorporated in this report.

Authors:
 [1];  [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:
1339914
Report Number(s):
PNNL-25839 Rev. 0
RC0423000; TRN: US1701482
DOE Contract Number:
AC05-76RL01830
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 22 GENERAL STUDIES OF NUCLEAR REACTORS; MONITORS; HAZARDS; COMPUTER CODES; CONTROL; ALGORITHMS; MONITORING; REACTOR OPERATION; DESIGN; EVALUATION; FAILURES; MAINTENANCE; OPTIMIZATION; SENSITIVITY; REACTOR COMPONENTS; REAL TIME SYSTEMS; SCHEDULES; SODIUM COOLED REACTORS; FAST REACTORS; IN-SERVICE INSPECTION

Citation Formats

Ramuhalli, Pradeep, Hirt, Evelyn H., Dib, Gerges, Veeramany, Arun, Bonebrake, Christopher A., and Roy, Surajit. Summary Describing Integration of ERM Methodology into Supervisory Control Framework with Software Package Documentation; Advanced Reactor Technology Milestone: M4AT-16PN2301052. United States: N. p., 2016. Web. doi:10.2172/1339914.
Ramuhalli, Pradeep, Hirt, Evelyn H., Dib, Gerges, Veeramany, Arun, Bonebrake, Christopher A., & Roy, Surajit. Summary Describing Integration of ERM Methodology into Supervisory Control Framework with Software Package Documentation; Advanced Reactor Technology Milestone: M4AT-16PN2301052. United States. doi:10.2172/1339914.
Ramuhalli, Pradeep, Hirt, Evelyn H., Dib, Gerges, Veeramany, Arun, Bonebrake, Christopher A., and Roy, Surajit. 2016. "Summary Describing Integration of ERM Methodology into Supervisory Control Framework with Software Package Documentation; Advanced Reactor Technology Milestone: M4AT-16PN2301052". United States. doi:10.2172/1339914. https://www.osti.gov/servlets/purl/1339914.
@article{osti_1339914,
title = {Summary Describing Integration of ERM Methodology into Supervisory Control Framework with Software Package Documentation; Advanced Reactor Technology Milestone: M4AT-16PN2301052},
author = {Ramuhalli, Pradeep and Hirt, Evelyn H. and Dib, Gerges and Veeramany, Arun and Bonebrake, Christopher A. and Roy, Surajit},
abstractNote = {This project involved the development of enhanced risk monitors (ERMs) for active components in Advanced Reactor (AdvRx) designs by integrating real-time information about equipment condition with risk monitors. Health monitoring techniques in combination with predictive estimates of component failure based on condition and risk monitors can serve to indicate the risk posed by continued operation in the presence of detected degradation. This combination of predictive health monitoring based on equipment condition assessment and risk monitors can also enable optimization of maintenance scheduling with respect to the economics of plant operation. This report summarizes PNNL’s multi-year project on the development and evaluation of an ERM concept for active components while highlighting FY2016 accomplishments. Specifically, this report provides a status summary of the integration and demonstration of the prototypic ERM framework with the plant supervisory control algorithms being developed at Oak Ridge National Laboratory (ORNL), and describes additional case studies conducted to assess sensitivity of the technology to different quantities. Supporting documentation on the software package to be provided to ONRL is incorporated in this report.},
doi = {10.2172/1339914},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month = 9
}

Technical Report:

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  • This report describes research results to date in support of the integration and demonstration of diagnostics technologies for prototypical advanced reactor passive components (to establish condition indices for monitoring) with model-based prognostics methods. Achieving this objective will necessitate addressing several of the research gaps and technical needs described in previous technical reports in this series.
  • This research report summaries the development and evaluation of a prototypic enhanced risk monitor (ERM) methodology (framework) that includes alternative risk metrics and uncertainty analysis. This updated ERM methodology accounts for uncertainty in the equipment condition assessment (ECA), the prognostic result, and the probabilistic risk assessment (PRA) model. It is anticipated that the ability to characterize uncertainty in the estimated risk and update the risk estimates in real time based on equipment condition assessment (ECA) will provide a mechanism for optimizing plant performance while staying within specified safety margins. These results (based on impacting active component O&M using real-time equipmentmore » condition information) are a step towards ERMs that, if integrated with AR supervisory plant control systems, can help control O&M costs and improve affordability of advanced reactors.« less
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  • The study evaluated the economic benefits of monitoring and controlling various facility and utility systems at the Fort through the use of the UMCS. The UMCS is a utility monitoring and control system that utilizes several computer stations with appropriate application software connected by communication network systems (wire, radio, power line carrier or fiber optics) to a number of remote terminal units placed at various locations to perform the following functions: collect data, perform remote and local controlling functions, initiate alarm conditions, and report the information through the communication network back to the computer stations. The study resulted in amore » recommendation for the implementation of the Utility Monitoring and Control System at Fort Campbell under one project. The implementation of the UMCS project will save Fort Campbell $1,348,383 annually. The project will pay for itself in 3.65 years.« less
  • S>Criteria work performed, prior to the termination of work on the package concept, for the liquid metal loop facilities for the Advanced Test Reactor is described. Nuclear criteria were determined for the thermal neutron filter and extended core combination in conjunction with the reference test specimen for the Fast Flux Loop. The conceptual design of the thermal loop is discussed, including the in-core section, sodium-to-helium heat exchanger, helium- to-reactor water heat exchanger, pump motor and associated bearing design requirements, preliminary shielding requirements, control system requirements, and electrical heaters within tue permissible space envelope. As the criteria work progressed it wasmore » determined that despite the accomplishments, not all the program requirements could be satisfied. (M.C.G.)« less