Methods improvements incorporated into the SAPHIRE ASP models

Conference · Sat Oct 01 04:00:00 EDT 1994

OSTI ID:54624

Sattison, M B; Blackman, H S; Novack, S D; Smith, C L ^[1]; Rasmuson, D M

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1. Idaho National Engineering Lab., Idaho Falls, ID (United States)

The Office for Analysis and Evaluation of Operational Data (AEOD) has sought the assistance of the Idaho National Engineering Laboratory (INEL) to make some significant enhancements to the SAPHIRE-based Accident Sequence Precursor (ASP) models recently developed by the INEL. The challenge of this project is to provide the features of a full-scale PRA within the framework of the simplified ASP models. Some of these features include: (1) uncertainty analysis addressing the standard PRA uncertainties and the uncertainties unique to the ASP models and methodology, (2) incorporation and proper quantification of individual human actions and the interaction among human actions, (3) enhanced treatment of common cause failures, and (4) extension of the ASP models to more closely mimic full-scale PRAs (inclusion of more initiators, explicitly modeling support system failures, etc.). This paper provides an overview of the methods being used to make the above improvements.

• Research Organization: Nuclear Regulatory Commission, Washington, DC (United States). Office of Nuclear Regulatory Research
• OSTI ID: 54624
• Report Number(s): NUREG/CP--0139; CONF-9410216--; ON: TI95001469
• Country of Publication: United States
• Language: English

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