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Human Reliability Modeling for Next Generation System Codes

Sundaramurthi, Ranjitprakash
http://rave.ohiolink.edu/etdc/view?acc_num=osu1324411548

Abstract Details

2011, Master of Science, Ohio State University, Mechanical Engineering.
This thesis derives the human reliability model requirements for the Next Generation System Code (NGSC) which will be utilized to determine risk-informed safety margins for Nuclear Power Plants (NPP) through dynamic probabilistic risk analysis. The proposed model is flexible, with the facility to apply a coarse-grain or a fine-grain structure based on the desired resolution level. The varying resolution is achieved by employing the procedure-based human reliability analysis methods (THERP or SPAR-H) for the coarse-grain structure and the advanced cognitive IDA method for the fine-grain structure. The thesis proposes improvements to the existing IDA model to incorporate functionalities demanded by the NGSC. The improvements are derived for four modules of IDA/IDAC. A Bayesian belief network is constructed for the performance-shaping factors and the conditional probability for existence of each factor is computed from data collected from aviation and nuclear accidents. The influence of the performance-shaping factors on the strategy-selection process of the operator is also depicted. A foundation is laid for the development of mental models with focus on NPP operation. The research lists the modifications/additions that are needed to the IDA method to enable the incorporation of Human Reliability Analysis (HRA) into NGSC codes.
Carol Smidts (Advisor)
Tunc Aldemir (Committee Member)
118 p.
Cognitive Psychology; Mechanical Engineering
HRA modeling; IDA/IDAC; Causal Map; BBN; Mental Model; NGSC

Recommended Citations

Citations

  • Sundaramurthi, R. (2011). Human Reliability Modeling for Next Generation System Codes [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1324411548

    APA Style (7th edition)

  • Sundaramurthi, Ranjitprakash. Human Reliability Modeling for Next Generation System Codes. 2011. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1324411548.

    MLA Style (8th edition)

  • Sundaramurthi, Ranjitprakash. "Human Reliability Modeling for Next Generation System Codes." Master's thesis, Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1324411548

    Chicago Manual of Style (17th edition)

osu1324411548
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© 2011, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.