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| number = ML18166A340
| number = ML18166A340
| issue date = 07/17/2018
| issue date = 07/17/2018
| title = 06/05/18 DG-1327 Enclosure 3 - Public Meeting NEI Presentation
| title = DG-1327 Enclosure 3 - Public Meeting NEI Presentation
| author name = Eichenberg T
| author name = Eichenberg T
| author affiliation = Nuclear Energy Institute (NEI)
| author affiliation = Nuclear Energy Institute (NEI)
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=Text=
=Text=
{{#Wiki_filter:}}
{{#Wiki_filter:DG-1327 Public Comment Disposition T. W. Eichenberg EPRI Fuel Reliability Program, Reg-TAC Chair Sr. Specialist Reactor Safety Analysis, TVA July 17, 2018
 
Issue Overview
* Dose
* Comment Resolution
* Forward Fit
* Work Scope
© 2018 NEI. All rights reserved.
 
Dose Assessment
* Changes to Non-LOCA Dose Assessment - Not Appropriate to DG-1327 Fission Product Release Fraction in DG-1327 should only be applicable to CRE/CRDA Revise other regulatory guidance as appropriate, such as RG 1.183 or 1.195
* Changes to AST Governed by 10CFR50.67(b)
New CRE/CRDA calculation creates 10CFR50.67 potential AST issues
© 2018 NEI. All rights reserved.
 
Comment Resolution
* Section C.1.2 Comment C Comment D Prompt vs. 5% power threshold issue.
What does at power limits becomes questionable mean?
* Section C.1.3 Comment C Dismissing the transition temperature phenomenon (PWR vs BWR)
© 2018 NEI. All rights reserved.
 
Comment Resolution
* Section C.2.1.1 Comment A Test are Inherently Conservative; not representative of actual operation. Recent changes to curve fits of Figures 2 & 4 in DG-1327 adds conservatism at lower Hydrogen levels. Revised technical basis for DG-1327 is missing.
Comment B Is Non-LOCA Realistic/Best Estimate Allowed or Not?
* Section C.2.2.3 Comment A-F Additional Workshop to flesh out Work Scope
© 2018 NEI. All rights reserved.
 
Comment Resolution
* Section C.2.3.4 Comment C How can we reference a Draft Reg. Guide 1.224
* Section C.2.3.5 Comment B Hydride reorientation, imposing beyond existing analyses
* Section 3.1 Comment C, E Additional Workshop to flesh out Work Scope
© 2018 NEI. All rights reserved.
 
Comment Resolution
* Section 3.2 Comment F, H-K Mechanical Properties vs. In-Pile
* Section 3.3 Comment A-B Fuel cladding failure is conservatively presumed.
© 2018 NEI. All rights reserved.
 
Dose Assessment
* Page 53 comment table Comment F, H-K No Response Provided
© 2018 NEI. All rights reserved.
 
Forward Fit / Implementation
* When Should Forward Fit Be Applied?
Possible Areas - When 50.59 indicates an LAR in needed, and touches:
* NUREG-800, SRP-4.2 (Fuel System Design) (Sans PAD5 related stuff)
* NUREG-800, SRP-15.4.8, (Spectrum of Rod Ejection Accidents (PWR))
* NUREG-800, SRP-15.4.8.A, (Radiological Consequences of Rod Ejection Accident (PWR))
* NUREG-800, SRP-15.4.9, (Spectrum of Rod Drop Accidents (BWR))
* NUREG-800, SRP-15.4.9.A, (Radiological Consequence of Rod Drop Accident (BWR))
* Reg. Guide 1.183; 1.195
* Example LAR Fuel Transition with a Specific Change of Methodology (i.e., 3D methods)
* Availability of Approved Methods Not every vendor in the same position right now
© 2018 NEI. All rights reserved.
 
Work Scope
* Additional Public Workshop to Discuss Scope Everyone on the same page
© 2018 NEI. All rights reserved.
 
Questions?? / Discussion}}

Latest revision as of 11:23, 30 November 2019

DG-1327 Enclosure 3 - Public Meeting NEI Presentation
ML18166A340
Person / Time
Site: Nuclear Energy Institute
Issue date: 07/17/2018
From: Eichenberg T
Nuclear Energy Institute
To:
NRC/RES/DE
O'Donnell E
Shared Package
ML18115A073 List:
References
DG-1327
Download: ML18166A340 (11)
v • d • e


Text

DG-1327 Public Comment Disposition T. W. Eichenberg EPRI Fuel Reliability Program, Reg-TAC Chair Sr. Specialist Reactor Safety Analysis, TVA July 17, 2018

Issue Overview

  • Dose
  • Comment Resolution
  • Forward Fit
  • Work Scope

© 2018 NEI. All rights reserved.

Dose Assessment

  • Changes to Non-LOCA Dose Assessment - Not Appropriate to DG-1327 Fission Product Release Fraction in DG-1327 should only be applicable to CRE/CRDA Revise other regulatory guidance as appropriate, such as RG 1.183 or 1.195

New CRE/CRDA calculation creates 10CFR50.67 potential AST issues

© 2018 NEI. All rights reserved.

Comment Resolution

  • Section C.1.2 Comment C Comment D Prompt vs. 5% power threshold issue.

What does at power limits becomes questionable mean?

  • Section C.1.3 Comment C Dismissing the transition temperature phenomenon (PWR vs BWR)

© 2018 NEI. All rights reserved.

Comment Resolution

  • Section C.2.1.1 Comment A Test are Inherently Conservative; not representative of actual operation. Recent changes to curve fits of Figures 2 & 4 in DG-1327 adds conservatism at lower Hydrogen levels. Revised technical basis for DG-1327 is missing.

Comment B Is Non-LOCA Realistic/Best Estimate Allowed or Not?

  • Section C.2.2.3 Comment A-F Additional Workshop to flesh out Work Scope

© 2018 NEI. All rights reserved.

Comment Resolution

  • Section C.2.3.5 Comment B Hydride reorientation, imposing beyond existing analyses
  • Section 3.1 Comment C, E Additional Workshop to flesh out Work Scope

© 2018 NEI. All rights reserved.

Comment Resolution

  • Section 3.2 Comment F, H-K Mechanical Properties vs. In-Pile
  • Section 3.3 Comment A-B Fuel cladding failure is conservatively presumed.

© 2018 NEI. All rights reserved.

Dose Assessment

  • Page 53 comment table Comment F, H-K No Response Provided

© 2018 NEI. All rights reserved.

Forward Fit / Implementation

  • When Should Forward Fit Be Applied?

Possible Areas - When 50.59 indicates an LAR in needed, and touches:

  • NUREG-800, SRP-4.2 (Fuel System Design) (Sans PAD5 related stuff)
  • NUREG-800, SRP-15.4.8, (Spectrum of Rod Ejection Accidents (PWR))
  • NUREG-800, SRP-15.4.8.A, (Radiological Consequences of Rod Ejection Accident (PWR))
  • NUREG-800, SRP-15.4.9, (Spectrum of Rod Drop Accidents (BWR))
  • NUREG-800, SRP-15.4.9.A, (Radiological Consequence of Rod Drop Accident (BWR))
  • Example LAR Fuel Transition with a Specific Change of Methodology (i.e., 3D methods)
  • Availability of Approved Methods Not every vendor in the same position right now

© 2018 NEI. All rights reserved.

Work Scope

  • Additional Public Workshop to Discuss Scope Everyone on the same page

© 2018 NEI. All rights reserved.

Questions?? / Discussion

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