AREVA TN

AREVA TN
DSFM REG CON 2014
Aging Management Programs (AMPs)
Don Shaw - AREVA TN - Licensing Manager
November 19, 2014
AREVA TN
10 CFR Part 72 Renewals
 Certificate of Compliance (CoC) 1004, Standardized NUHOMS® System,
expiration date is 1/23/15.
 Pre-application meetings August 2013, January and July 2014.
 Precedence from five renewed site licenses and one nearing approval.
 Three involved the NUHOMS® horizontal technology:
•
Robinson
•
Oconee
•
Calvert Cliffs
 One CoC (CoC 1007 for the VSC-24) has a renewal application under NRC
review.
AREVA TN
DSFM REG CON 2014 – Aging Management Programs – Don Shaw – November 19, 2014 – pg. 3
NRC/NEI/Industry Guidance Activity

Several NRC public meetings (pre-applicants, post-applicants, and
NEI/industry as a whole).

NUREG-1927 being revised, based on renewal experience.

NEI 14-03 developed by NEI and a team of industry representatives, to
complement NUREG-1927.

First workshop regarding inspection tools/techniques/training recently
occurred, with NRC and industry participants.

Regardless of the precedence and the very active efforts listed here,
discussions by this panel will reflect the dynamic reality of the current
state of affairs with renewal application guidance.
AREVA TN
DSFM REG CON 2014 – Aging Management Programs – Don Shaw – November 19, 2014 – pg. 4
CoC 1004 Renewal Application
 The CoC 1004 renewal application was dated 11/4/14.
 All thirteen approved amendments are being renewed.
 Eleven storage canister models (6 PWR, 4 BWR), six overpack models, and
four transfer cask models are involved.
 Format and content based on:
• NUREG-1927 (March 2011)
• NEI 14-03 (September 2014)
• CoC 1007 VSC-24 application
AREVA TN
DSFM REG CON 2014 – Aging Management Programs – Don Shaw – November 19, 2014 – pg. 5
The Renewal Process
 Scoping of structures, systems, and components (SSCs)
•
Identify intended safety functions of each SSC
•
Determine SSCs within scope (i.e., SSC is classified as important to safety (ITS) or not ITS
but could impact a safety function)
 Aging Management Review
•
Identify SSC materials and environments
•
Identify SSC aging effects, if any, based on materials/environment
•
Determine aging management activities to address the aging effects
-
Time-limited aging analysis (TLAA), or
-
Aging Management Program (AMP)
AREVA TN
DSFM REG CON 2014 – Aging Management Programs – Don Shaw – November 19, 2014 – pg. 6
CoC 1004 AMPs
 CoC 1004 renewal application AMPs are based on input from:
•
Site specific NUHOMS® ISFSI inspections
•
Other available industry operating experience
•
Generic industry research information
 CoC 1004 AMPs are based the following principals:
•
Learning (operations-based) AMPs
•
Tiered approach to detection of degradation
•
Tollgate assessments
AREVA TN
DSFM REG CON 2014 – Aging Management Programs – Don Shaw – November 19, 2014 – pg. 7
Learning (or Operations-Based) AMP
 Even the oldest ISFSIs are not far into the renewal period
 Certain aging mechanisms may not be known
 Certain aging mechanisms are not well-characterized by operating data
 Therefore, emphasis is put on aspects such as:
•
Storage system monitoring inspections
•
Recognition and evaluation
•
Analysis and assessment
•
Corrective actions and feedback
•
Tollgate assessments
•
Research and demonstration projects
AREVA TN
DSFM REG CON 2014 – Aging Management Programs – Don Shaw – November 19, 2014 – pg. 8
Tiered Approach
 Aging mechanisms progress very slowly; AMPs identify degradation well
in advance of intended functions being adversely affected.
 Inspections which find no indications of degradation require no
additional action.
 As time passes, if inspections find indications, those will be further
assessed, and AMPs adjusted if appropriate.
 Should they occur, situations where intended functions would be
adversely affected if the degradation is allowed to progress will be
addressed by corrective action programs, up to and including emptying
one or more storage systems.
AREVA TN
DSFM REG CON 2014 – Aging Management Programs – Don Shaw – November 19, 2014 – pg. 9
Tollgates
 Based on the learning (operations-based) AMP scenario which
exists in the dry cask storage industry
 A scheduled, purposeful pause is taken to assess the aggregate
state of knowledge of aging-related operational experience.
 Tollgate assessments evaluate the latest research and industry
experience of dry storage aging mechanisms and inspection
methods and results.
AREVA TN
DSFM REG CON 2014 – Aging Management Programs – Don Shaw – November 19, 2014 – pg. 10
AMP Elements
1.
Scope of the program
2.
Preventive actions
3.
Parameters monitored or inspected
4.
Detection of aging effects
5.
Monitoring and trending
6.
Acceptance criteria
7.
Corrective actions
8.
Confirmation process
9.
Administrative controls
10. Operating experience
AREVA TN
DSFM REG CON 2014 – Aging Management Programs – Don Shaw – November 19, 2014 – pg. 11
CoC 1004 AMPs
 Shared full AMP details with all general licensees
 Shared application proposed Technical Specifications
•
One change proposed involves a high level requirement for general
licensees to have a program to implement the AMPs described in the
UFSAR
 Shared the application proposed UFSAR changes
•
One change proposed involves summary level tables of the ten
elements for each AMP
AREVA TN
DSFM REG CON 2014 – Aging Management Programs – Don Shaw – November 19, 2014 – pg. 12
CoC 1004 Main Components
 Dry Shielded Canister (DSC)
•
Shell Assembly
•
Basket
 Horizontal Storage Module (HSM)
•
Reinforced concrete overpack
 Transfer Cask (TC)
•
Supports loading operations
AREVA TN
DSFM REG CON 2014 – Aging Management Programs – Don Shaw – November 19, 2014 – pg. 13
CoC 1004 AMPs
 DSC External Surfaces Aging Management Program
 DSC Aging Management Program for the Effects of Chloride-Induced
Stress Corrosion Cracking
 HSM Aging Management Program for External and Internal Surfaces
 HSM Inlets and Outlets Ventilation Aging Management Program
 Transfer Cask Aging Management Program
 High Burnup Fuel Aging Management Program
(The AMP ten-element details are proprietary at this time.)
AREVA TN
DSFM REG CON 2014 – Aging Management Programs – Don Shaw – November 19, 2014 – pg. 14
Questions?
AREVA TN
DSFM REG CON 2014 – Aging Management Programs – Don Shaw – November 19, 2014 – pg. 15