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Title: FEPs Screening of Processes and Issues in Drip Shield and Waste Package Degradation

Abstract

The purpose of this report is to evaluate and document the inclusion or exclusion of features, events and processes (FEPs) with respect to drip shield and waste package modeling used to support the Total System Performance Assessment for License Application (TSPA-LA). Thirty-three FEPs associated with the waste package and drip shield performance have been identified (DTN: MO0407SEPFEPLA.000 [DIRS 170760]). A screening decision, either ''included'' or ''excluded,'' has been assigned to each FEP, with the technical bases for screening decisions, as required by the Nuclear Regulatory Commission (NRC) in 10 CFR 63.114 (d, e, and f) [DIRS 156605]. The FEPs analyses in this report address issues related to the degradation and potential failure of the drip shield and waste package over the post closure regulatory period of 10,000 years after permanent closure. For included FEPs, this report summarizes the disposition of the FEP in TSPA-LA. For excluded FEPs, this report provides the technical bases for the screening arguments for exclusion from TSPA-LA. The analyses are for the TSPA-LA base-case design (BSC 2004 [DIRS 168489]), where a drip shield is placed over the waste package without backfill over the drip shield (BSC 2004 [DIRS 168489]). Each FEP includes one or more specificmore » issues, collectively described by a FEP name and description. The FEP description encompasses a single feature, event, or process, or a few closely related or coupled processes, provided the entire FEP can be addressed by a single specific screening argument or TSPA-LA disposition. The FEPs were assigned to associated Project reports, so the screening decisions reside with the relevant subject-matter experts.« less

Authors:
Publication Date:
Research Org.:
Yucca Mountain Project, Las Vegas, Nevada (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
839523
Report Number(s):
ANL-EBS-PA-000002, REV 03
DOC.20041012.0004, DC43058; TRN: US0502917
DOE Contract Number:  
AC28-01RW12101
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 11 Oct 2004
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; DESIGN; PERFORMANCE; COMPUTERIZED SIMULATION; RADIOACTIVE WASTE FACILITIES; YUCCA MOUNTAIN; CONTAINERS; WASTE FORMS; CONTAINMENT SYSTEMS; SAFETY ENGINEERING

Citation Formats

K. Mon. FEPs Screening of Processes and Issues in Drip Shield and Waste Package Degradation. United States: N. p., 2004. Web. doi:10.2172/839523.
K. Mon. FEPs Screening of Processes and Issues in Drip Shield and Waste Package Degradation. United States. doi:10.2172/839523.
K. Mon. Mon . "FEPs Screening of Processes and Issues in Drip Shield and Waste Package Degradation". United States. doi:10.2172/839523. https://www.osti.gov/servlets/purl/839523.
@article{osti_839523,
title = {FEPs Screening of Processes and Issues in Drip Shield and Waste Package Degradation},
author = {K. Mon},
abstractNote = {The purpose of this report is to evaluate and document the inclusion or exclusion of features, events and processes (FEPs) with respect to drip shield and waste package modeling used to support the Total System Performance Assessment for License Application (TSPA-LA). Thirty-three FEPs associated with the waste package and drip shield performance have been identified (DTN: MO0407SEPFEPLA.000 [DIRS 170760]). A screening decision, either ''included'' or ''excluded,'' has been assigned to each FEP, with the technical bases for screening decisions, as required by the Nuclear Regulatory Commission (NRC) in 10 CFR 63.114 (d, e, and f) [DIRS 156605]. The FEPs analyses in this report address issues related to the degradation and potential failure of the drip shield and waste package over the post closure regulatory period of 10,000 years after permanent closure. For included FEPs, this report summarizes the disposition of the FEP in TSPA-LA. For excluded FEPs, this report provides the technical bases for the screening arguments for exclusion from TSPA-LA. The analyses are for the TSPA-LA base-case design (BSC 2004 [DIRS 168489]), where a drip shield is placed over the waste package without backfill over the drip shield (BSC 2004 [DIRS 168489]). Each FEP includes one or more specific issues, collectively described by a FEP name and description. The FEP description encompasses a single feature, event, or process, or a few closely related or coupled processes, provided the entire FEP can be addressed by a single specific screening argument or TSPA-LA disposition. The FEPs were assigned to associated Project reports, so the screening decisions reside with the relevant subject-matter experts.},
doi = {10.2172/839523},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {10}
}