SEISMIC PRA

Award Information
Agency: Nuclear Regulatory Commission
Branch: N/A
Contract: N/A
Agency Tracking Number: 294
Amount: $250,000.00
Phase: Phase II
Program: SBIR
Awards Year: 1984
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
2000 Center Street, Suite 418, Berkeley, CA, 94704
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Robert J. Budnitz
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
TECHNIQUES HAVE RECENTLY BEEN DEVELOPED FOR PROBABILISTIC ANALYSIS OF THE RISK FROM EARTHQUAKE-INITIATED ACCIDENTS AT NUCLEAR POWER REACTORS. THESE TECHNIQUES ARE NOW BEGINNING TO BE APPLIED AS PARTS OF LARGER PRA STUDIES. HOWEVER, THE RESULTS OF APPLYING THESE SEISMIC PRA TECHNIQUES ARE STILL HIGHLY UNCERTAIN, AND THE INSIGHTS GAINED SO FAR FOR SPECIFIC REACTORS ARE DIFFICULT TO GENERALIZE. THIS PROJECTPROPOSES TO IMPROVE ONE PART OF THE OVERALL METHODOLOGY FOR SEISMIC PRA -- SPECIFICALLY THE SYSTEMS ANALYSIS PART, IN WHICH THE POSTULATED FAILURES RESULTING FROM AN EARTHQUAKE ARE ANALYZED FROM A SYSTEMS PERSPECTIVE TO ASCERTAIN HOW THESE FAILURES MAY LEAD TO CORE MELTING AND OFFSITE RELEASES. THE GOAL IS TO REDUCE THE UNCERTAINTIES ASSOCIATED WITH THE SYSTEMS ANALYSIS PART OF SEISMIC PRA BY (1) STUDYING THE SEISMIC PRA'S ALREADY ACCOMPLISHED; (2) IDENTIFYING AREAS WHERE UNCERTAINTIES CAN BE NARROWED THROUGH DEVELOPMENT AND APPLICATION OF IMPROVED METHODS; (3) DEVELOPING THESE METHODS; AND (4) APPLYING THEM ON A SAMPLE CASE BASIS. THE PHASE I EFFORT PROPOSED HERE WILL CONCENTRATE ON THE FIRST TWO OF THESE FOUR AREAS OF WORK, WITH THE LATTER TWO TO BE ADDRESSED IN PHASE II FOLLOW-ON STUDY LATER.

* Information listed above is at the time of submission. *

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