Text

Final Safety Evaluation for Framatome Topical Report, ANP-10339P, Revision 0, Arita - Artemis/Relap Integrated Transient Analysis Methodology (Appendix IV) - Non-Proprietary
	ML23299A240
Person / Time
Site:	99902041, PROJ0728
Issue date:	10/16/2023
From:	Ngola Otto; Licensing Processes Branch
To:	; Framatome
Shared Package
ML23233A151	List: ML23233A139; ML23299A232; ML23299A240;
References
	EPID L-2018-TOP-0034
	Download: ML23299A240 (114)
	v • d • e

Phenomenon Parameter

))

OFFICIAL USE ONLY-PROPRIETARY INFORMATION 1

Appendix IV: ARITA Methodology Uncertainty Parameter Treatments EM Variant I

Code

))

Uncer tainty Approach

]J

([

))

Distri bution

]J

((

I]

Range I Parameters

([

))

Staff Evaluation

([

(Continued on next page) 1 TBD in this Appendix means that the Range/Parameter should be defined at the time of the licensing action (e.g., License Amendment Request (LAR)). PS means plant-specific and can be defined during a LAR.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY -PROPRIETARY INFORMATION Cl

[I

Phenomenon Parameter

((

J]

EM Variant I

Code

((

))

OFFICIAL USE ONLY - PROPRIETARY INFORMATION 2

Uncer-tainty Approach Distri-bution Range I Parameters Staff Evaluation (Continued from previous page)

((

))

[(

I]

))

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon PCS-1 Stored Energy (metal, fuel, and coolant)

Parameter

((

))

[I

])

EM Variant I

Code

((

I)

((

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 3

Uncer-tainty Approach

((I 11

((

I)

Distri-bution

((

((I

))

Range I Parameters

((

ll

((

ll Staff Evaluation

((

)) For many events, maximizing the primary side stored energy produces the most limiting conditions. ((

)) This approach is also consistent with previous standard practices, [(

])

((

)) Therefore, the NRC staff finds that this treatment of the parameter is considered acceptable. ([

[(

J] Therefore, the NRC staff finds that this parameter treatment is acceptable.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon PCS-1 Stored En~rgy (metal, fuel, and coolant)

Parameter

((

l]

((

I]

((

EM Variant I

Code

((

))

[(

I]

CD I]

((

))

[(

I]

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 4

Uncer-Distri-Range I tainty Staff Evaluation Approach bution Parameters

((,

er J]

J]

I]

[(

((

JJ

))

I]

((

u I]

I]

[(

((

Ct

))

I]

((

[t

((

l]

I]

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon PCS-1 Stored Energy (metal, fuel, and coolant)

Parameter I]

EM Variant I

Code

[(I I]

((

I]

((

OFFICIAL USE ONLY - PROPRIETARY INFORMATION 5

Uncer-Distri-Range I tainty Staff Evaluation Approach bution Parameters

((

[t

((

))

J]

))

((

))

I]

((

I]

ll

((

I]

))

((

)]

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon PCS-2 Non-Uniform Power Distribution PCS-3 Direct Moderator Energy Dep PCS-4 Decay Heat PCS-5 Kinetics/

Reactivity Feedback EM Variant Parameter I

Code J]

I]

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 6

Uncer-Distri-Range /

tainty Approach bution Parameters

((

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION Staff Evaluation I)

))

I]

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 7

EM Variant Uncer-Distri-Range I Phenomenon Parameter I

tainty Staff Evaluation Code Approach bution Parameters

((

JJ n

IJ

))

((

I]

((

))

((

((I rn

((

I]

))

((

((I rn

((I I]

The minimum boron injection concentration from the refueling water storage tank

((

(RWST) is defined in a Technical Specification (TS) limiting conditions for

))

operation (LCO). ((

((

I]

((

J] Therefore, the NRC staff finds I]

that the use of ((

]) boron injection concentration

])

acceptable.

((

JJ

((

]) may have the potential to develop boron

((

concentrations that are dilute ((

((

I]

((1 lJ

((

lJ I]

])

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon PCS-6 Boron Injection

/ Dilution PCS-7 ECCS Operation Parameter 11 J]

11 J]

EM Variant I

Code

((

11

((

11

((

11 OFFICIAL USE ONLY -PROPRIETARY INFORMATION 8

Uncer-tainty Approach

((

))

((

11

((

11 Distri-bution

((

((I

((

Range I Parameters

((

11

((

11

((

11 Staff Evaluation 1 The NRC staff expects this approach to yield a conservative parameter treatment, and it is therefore acceptable.

All parameters defined for the phenomenon PCS-7 are also pertinent to PCS-6.

See PCS-7 for the NRC staffs evaluation of these parameters.

All parameters defined for the phenomenon PCS-6 are also pertinent to PCS-7.

See PCS-6 for the NRC staffs evaluation of these parameters.

((

J] is an engineered safetv feature for actuation of the ECCS. The setpoint ((

]) is conservative. Therefore, the NRC staff finds that the treatment of this parameter acceptable. ([

The actuation time delay for ECCS can influence departure from nucleate boiling (DNB), fuel centerline melt (FCM). and cladding strain. ([

]) Therefore, the NRC staff finds the treatment of this parameter acceptable.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

))

I]

((I

((

))

I]

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 9

Uncer-tainty Approach

((

))

((

I]

[t I]

Distri-bution

((

))

((

I]

((

ll

((

))

Range /

Parameters

((

JJ

((

))

((

))

((

I)

Staff Evaluation The safety injection flow rate can influence DNB. FCM, and cladding strain. [(

)) This is conservative.

Therefore, the NRC staff finds the treatment of this arameter acce table.

((

)) pump performance tends to degrade with pump lifespan, [(

Framatome's approach is conservative. Therefore, the NRC staff finds the treatment of this arameter acce table.

((

])

J] Therefore, the NRC staff introduced limitation and condition 6, which requires licensees implementing the AR IT A methodology to treat ((

)) With this limitation and condition, NRC staff finds the treatment of this parameter acceptable.

((

))

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon Parameter EM Variant I

Code

((

JI

((

JI OFFICIAL USE ONLY -PROPRIETARY INFORMATION 10 Uncer-tainty Approach

((

I]

((.

l]

Distri-bution

((

I)

((

I)

Range I Parameters

((I I)

((

I)

((

I)

Staff Evaluation

((

J) the NRC staff finds that the treatment of this parameter acceptable. ((

JI

((

)) which adds conservatism. ((

the NRC staff finds the treatment of this parameter acceptable.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION l]

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 11 EM Variant Uncer-Distri-Range/

Phenomenon Parameter I

tainty Staff Evaluation Code Approach bution Parameters

((

I]

J] the modeling approach introduces a conservative ((

I]

))

)) the NRC staff finds the treatment of this arameter acce table.

((

((I I]

((

I]

J] is conservative. Therefore, the treatment of this parameter acceptable.

))

((

I]

))

Therefore, the NRC staff finds the treatment of this arameter acce table.

((

The RPS trip setpoint and uncertainty ((

((

I]

((

))

l]

))

I] conserv the NRC staff finds the treatment of this arameter acce table.

((

The RPS actuation resoonse time rr

((

I]

((

I]

JI is conservative. Therefore, the NRC staff finds the

))

treatment of this parameter acceptable.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 12 EM Variant Uncer-Distri-Range I Phenomenon Parameter I

tainty Staff Evaluation Code Approach bution Parameters

((

ff

((

I]

))

I)

((

I]

((

I]

I)

))

((

I)

I]

((GCN-6a Stuck Rod

((I Location])

((

I)

((

I]

))

I]

((

([

((

I]

))

1)

I) ll Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon Parameter EM Variant I

Code OFFICIAL USE ONLY-PROPRIETARY INFORMATION 13 Uncer-tainty Approach Distri-bution Range I Parameters

((

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION Staff Evaluation J]

J]

)]

11 J]

)]

I]

Phenomenon Fuel Rod Heat Transfer (pellet-to-clad)

PCS-10 Cladding Surface Heat Transfer PCS-11 Component Flow Resistance and RCP Performance Parameter

((

I]

((

I]

EM Variant I

Code

((

])

OFFICIAL USE ONLY-PROPRIETARY INFORMATION 14 Uncer-Distri-Range I tainty Approach bution Parameters

((

Staff Evaluation Steam generator (SG) tube plugging ((

((

((I I]

((

])

I]

])

]) is conservative. Therefore, the NRC staff finds the treatment of this parameter acceptable. ((

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon PCS-11 Component Flow Resistance and RCP Performance PCS-12 RCP & RCS Core Flow Coastdown Parameter

((

I)

((

I]

EM Variant I

Code

((

))

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 15 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters

((

J] component flow resistance affects the total RCS pressure drop. ((

((

))

I)

I]

1) Based on the conservativeness [(

)] the NRC staff finds the treatment of this parameter acce table.

RCP performance affects the total RCS pressure drop and heat transfer between the primary and secondary side. ((

((

I]

Cl

)] generally ll expected to be conservative ((

I]

)) Therefore, because of this conservativeness [(

the NRC staff finds the treatment of this arameter acce table.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon PCS-13 In Reactor Vessel Coolant

Mixing, PCS-14 In-core Coolant Mixing Parameter lJ

))

I]

EM Variant I

Code

([

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 16 Uncer-Distri-Range I tainty Approach bution Parameters

([

((

([

J]

((

J]

)]

conservatively represents ([

Staff Evaluation finds the treatment of this parameter acceptable ((

((

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION I]

I] Therefore, NRC staff

)]

))

I]

J]

Phenomenon PCS-15 Bypass of Coolant Flow PCS-16 Excore Nuclear Instrument Power Measurement Parameter

))

I]

EM Variant I

Code

((

))

((

))

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 17 Uncer-Distri-Range I tainty Staff Evaluation Approach bution Parameters Core bypass flow is coolant that enters the reactor vessel but does not directly cool the fuel, such as flow that passes through instrument tubes, guide thimbles, between the core barrel and outer fuel assemblies, etc. ([

((

11 11 I]

I] Therefore, the NRC staff finds the treatment of this arameter acce table.

((

rr I]

I]

I] The NRC staff finds the treatment of this parameter acceptable because this information will be reviewed in future plant-specific licensing applications in conjunction with Limitation and Condition 5.

Justification of the excore NI detector decalibration factor uncertainty will be reviewed and a roved at the time of the a lication.

((

((I I]

((

I]

((

I]

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon PCS-17 Coolant Loop /

RPVTemp Measurement Parameter

((

11

((

11 EM Variant I

Code

((

))

((

))

((

11 OFFICIAL USE ONLY-PROPRIETARY INFORMATION 18 Uncer-tainty Approach

((

J]

((

I]

((

11 Distri-bution

((

JI

((

JI

((

))

Range I Parameters

((

))

((

))

((

))

Staff Evaluation

((

)) the NRC staff finds that the treatment of this parameter is reasonable. ((

The performance of the coolant loop temperature measurement system can influence the timing of reactor trip and core power level at trip for some plants.

((

JI thus. the proposed approach for this parameter is reasonable. ((

The performance of the coolant loop temperature measurement system can influence the timina of reactor trio and core power level at trip for some plants.

((

JI Limitation and Condition 5 will ensure acceptable treatment for alternative conditions. Therefore, the NRC staff finds the treatment of this parameter acceptable.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon PCS-17 Coolant Loop /

RPVTemp Measurement PCS-18 Coolant Flow Rate Measurement Parameter

((

])

((

))

((

I)

EM Variant I

Code

((

])

((

))

((

I)

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 19 Uncer-Distri-Range I tainty Staff Evaluation Approach bution Parameters

((

I]

])

]) limitation and Condition 5 will ensure acceptable treatment for alternative conditions. Therefore, the NRC staff finds the treatment of this arameter acce table.

tr

((

I]

])

ll I) Limitation and Condition 5 will ensure acceptable treatment for alternative conditions. Therefore, the NRC staff finds the treatment of this arameter acce table.

RCS coolant flow rate is dependent on performance of the RCPs and the flow rate measurement uncertaintv. rr

((

I) Core flow is I]

I)

J]

the coolant that flows through the active core region of the reactor vessel and directly cools the core, ((

((

))

[l

((

])

RCS flow and flow measurement uncertaintv rr ll

])

I]

(Continued on next page)

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon PCS-18 Coolant Flow Rate*

Measurement PCS-19 Pressurizer RCS Press Measurement Parameter

((

I]

((

J]

EM Variant I

Code

((

I]

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 20 Uncer-tainty Approach

((

I]

((

I]

Distri-Range/

bution Parameters

((

JJ I]

((

I]

ll Staff Evaluation (Continued from previous page)

((

)) Limitation and Condition 5 will ensure acceptable treatment for alternative conditions. Therefore, the NRC staff finds the treatment of this arameter acce table.

((

J] is a conservative approach for SAFDL analyses. Therefore, the NRC staff finds the treatment of this parameter acceptable.

((

)) The pressure control system modes are defined by plant licensing documentation, and the operating mode will be ((

J] When the system is modeled in automatic mode, ([I J] When the system is modeled in manual mode, ((

)) is conservative. Thus, the NRC staff finds the treatment of this parameter is acceptable.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon PCS-19 Pressurizer RCS Press Measurement Parameter

((

I]

((

I]

EM Variant I

Code

((

)]

OFFICIAL USE ONLY-PROPRIETARY INFORMATION 21 Uncer-tainty Approach

((

I]

((

)]

Distri-bution

((

I]

Range I Parameters

((

Staff Evaluation

((

I] which would Qenerally be conservative. ((

)) Therefore, the NRC staff finds that the proposed treatment of this arameter is acce table.

((

I) the NRC staff finds this reasonable. Therefore, the NRC staff finds

)]

the treatment of this parameter acceptable.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon PCS-19 Pressurizer RCS Press Measurement Parameter

((

I]

((

J]

((

I]

EM Variant I

Code

((

])

((

))

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 22 Uncer-Distri-Range I tainty Staff Evaluation Approach bution Parameters

((

I]

])

11

))

Limitation and Condition 5 will ensure acceptable treatment for alternative conditions. Therefore, the NRC staff finds the treatment of this parameter acce table.

((

))

])

I)

Limitation and Condition 5 will ensure acceptable treatment for alternative conditions. Therefore, the NRC staff finds the treatment of this parameter acce table.

tr

((

I]

((I j]

I) l)The NRC staff finds ((1 I) acceptable ((

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon PCS-19 Pressurizer RCS Press Measurement Parameter

((

11

((

I]

((

I]

((

I]

EM Variant I

Code

((

))

((

))

((

))

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 23 Uncer-Distri-Range I tainty Staff Evaluation Approach bution Parameters

((

)) The NRC staff assessment is that

((

]) are modeled as ((

((

I) Per the response to RAl-31, this equates to ((

((

I]

((

I]

)]

)) the NRC staff finds it is a reasonable approximation. ((

)) Therefore, the NRC staff finds the treatment of this parameter acce table.

((

I]

((

J]

which is conservative. ((

I]

)] Therefore, the NRC staff finds the I]

treatment of this parameter acceptable.

((

I]

((I 11 I]

)) the NRC staff finds the treatment of this parameter acceptable.

((I

((

I]

((

J]

I]

J] which is conservative.

Therefore, the NRC staff finds the treatment of this parameter acceptable.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon PCS-20 Pressurizer*

Level Measurement PCS-2*1 Pressurizer Phenomena Parameter I)

J]

EM Variant I

Code

((

))

((

))

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 24 Uncer-tainty Approach

((

I]

((

I)

((

I]

Distri-bution

((

I]

((

I]

([

l]

Range I Parameters

((

Staff Evaluation J) However, the NRC staff noted it may be possible for o rr o

[l ll

((

I) to have a compoundinQ effect, such that a decreased conservatism may result ((

I)

Therefore, the NRC staff introduced Limitation and Condition 7, which requires demonstration of conservatism in ((

J) With the introduction of this limitation and condition, the NRC staff finds the treatment rr 11 acceptable. rr The measurement uncertaintv is defined from rr JJ Limitation and Condition 5 will ensure acceptable treatment for alternative conditions. Therefore, the NRC staff finds the treatment of this parameter acce table.

((

J]

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon PCS-21 Pressurizer Phenomena PCS-22 Surge Line Flow Resistance I Pressure Drop Parameter I]

EM Variant I

Code

((

)]

((

])

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 25 Uncer-tainty Approach

((.

I]

((

I]

Distri-bution

((

])

((

ll Range I Parameters

((

])

I]

Staff Evaluation

[(I level uncertainty. ((

]) The NRC staff notes that a similar approach ((

]) used by Framatome in its AURORA-B application for BWR non-LOCA events (Reference 13). A detailed discussion regarding the NRC staffs assessment of this parameter can be found

((

]) in Section 3.5.1.2 of this SE. Per the discussion therein, the NRC staff finds the treatment of this parameter is acceptable [(

((

)]

((

)] surge line flow resistances are [(

JI Based on the conservativeness ((

)] the NRC staff finds the treatment of this arameter acce table.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

I]

))

((

))

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 26 Uncer-Distri-Range I tainty Staff Evaluation Approach bution Parameters

((

((.

((

J]

))

((:

((,

((

))

I]

Framatome's approach to natural circulation flow is ((

((

I]

11 natural circulation flow rates due to rr

((

I]

)]

I]

conservatively treated, the NRC staff finds that the approach ((

)] for natural circulation flow ((

acce table.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

))

Phenomenon PCS-23 Natural Circulation Flow PCS-24 Makeup &

Letdown Flow Parameter

((

I]

((

J]

((

I]

EM Variant I

Code

((

))

((

))

OFFICIAL USE ONLY-PROPRIETARY INFORMATION 27 Uncer-tainty Approach

((I I]

((

I]

Distri-bution

((

I]

((

I]

Range I Parameters Staff Evaluation

((

JI

((

I]

((

)) charging flow rate

]) charging flow

((

the NRC staff finds the treatment of this arameter acce table.

((

J] This is acceptable because the conservatism associated with ((

]) Therefore, the NRC staff finds the treatment of this parameter acce table.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon Parameter

((

I]

((

J]

((

I]

EM Variant I

Code

((

))

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 28 Uncer-tainty Approach

((

I]

((

I]

Distri-bution

((

))

((

I]

Range I Parameters

((

I]

((

I]

Staff Evaluation

((

II Limitation and Condition 5 will ensure acceptable treatment for alternative conditions. ((

II Therefore, the NRC staff finds that the treatment of this parameter is acceptable because it is

((

I]

conservative!

((

J] The NRC staff finds that the treatment of this parameter is acceptable because it is ((

]) conservative ((

((

))

((,

I]

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon PCS-25 RCP Bearing

& Seal Flow PCS-26 Pressurizer Relief Valve Flow Parameter I]

EM Variant I

Code

((

])

((

])

((

])

((

])

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 29 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters RCP bearing and seal leakage flows ((

I) these flows could have an influence on an event FOM

((

)) In such cases, the leakage flow rate is I]

I)

((

I)

J) the NRC staff finds the treatment of this parameter acce table.

((

I)

((

I]

I)

((

I] power operated relief

((

valves (PORVs) ((

((

J] setpoints and flow capacities [(

((

I]

J] This treatment is also applied when I]

the PORVs rr JJ This mitiqates the need to ((

I] The NRC staff finds ((

I] setpoint for the PORV acceptable, ((

I]

In addition, the flow ca aci

((

J] PORVs utilizing ((

J] setpoints and flow capacities

((

I]

((

])

This treatment is also applied when the PORVs ((

])

)) The NRC staff finds that the treatment of this parameter is acceptable ((

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon PCS-26 Pressurizer Relief Valve Flow Parameter

((

11

((

11

((

11

((

))

EM Variant I

Code

((

)]

((

])

((

)]

((

)]

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 30 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters

((

a

((I 11

((

JI setpoints and I]

))

flow capacities ((

]) Therefore, the NRC staff finds that the treatment of this parameter is acceptable per rationale discussed ((

J]

in the SE.

((

a

((

11

((

)) setpoints and I]

flow capacities ((I

)) Therefore, the NRC staff finds that the 11 treatment of this parameter is acceptable per rationale discussed ((

J]

in the SE.

The PSV setpoints ((

((

)) pressurizer safety valve

((

(PSV) ((

I]

((

))

I]

)) opening setpoint ((

11 is conservative. ((

11 the NRC staff that the treatment of this arameter acce table.

The PSVs are used to mitigate RCS overpressure, the capability of which is

((

dependent on valve flow capacitv. PSV flow capacitv is rr

((

11

((

J] considered conservative ((

11 Therefore, the NRC staff finds the treatment of this arameter acce table.

([

((

11

((

11 The NRC staff 11

))

finds that the treatment of this parameter is acceptable because ((

JI does not influence [l FOM.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon PCS-27 RCS Heat Structure Latent Heat Storage &

Release PCS-28 Flashing of Coolant in RPV Upper Head Parameter I]

EM Variant I

Code

((

))

((

))

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 31 Uncer-tainty Approach

((

I]

((

I]

((

I]

Distri-bution

((

I]

((

))

((

])

Range I Parameters

((

I]

((

I]

((

Staff Evaluation Treatment of this parameter is assessed ((

J] under "RCS Heat Structure, Latent Heat Storage and Release" in Section 3.5.1.2 of this SE. With the introduction of Limitation and Condition 8

((

)) ~

ensure heat capacity ((

I] NRC staff finds treatment of the present parameter acceptable ((

))

Treatment of this parameter is assessed ((;

JI under "RCS Heat Structure. Latent Heat Storage and Release" in Section 3.5.1.2 of this SE. With the introduction of Limitation and Condition 8, the NRC staff finds the treatment of this parameter acceptable ((

))

((.

the treatment of this parameter ((

])

JJ

((

l)Therefore, NRC staff finds that l]is acceptable ((

]) a detailed discussion of the NRC staff assessment for this phenomenon can be found under "Flashing of Coolant in the Upper Head" in Section 3.5.1.2 of this SE. With the introduction of Limitation and Condition 9, the NRC staff finds the treatment of this henomenon acce table.

((

I]

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon PCS-29 Heat Addition from RCP Operation PCS-30 Choking/

Critical Flow Parameter

((

J]

((

I]

EM Variant I

Code

((

))

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 32 Uncer-tainty Approach

((

I]

((

I]

Distri-bution

((

I]

([

I]

Range I Parameters Staff Evaluation

((

RCP operation introduces heat into the RCS. ((

)] This approach is conservative for ((

I) Therefore, the NRC staff

))

finds that the treatment of this parameter is acceptable.

((

The homogenous equilibrium model (HEM) critical flow model is used for single-phase vapor choked flow, ((

)] for single-phase choked flow, ((

I]

where single-phase vapor choked flow occurs in conjunction with a period of two-phase choked flow, ((

])

The NRC staffs position is that there is uncertainty associated even with single-phase choked flow, especially through valves. However, the NRC staff's assessment is that the approach utilized by the ARITA methodology, ((*

II conservatisms present ((

I] Therefore, treatment of this parameter is acceptable. A detailed discussion regarding the NRC staff's assessment of this parameter can be found under ((

Section 3.5.1.2 of this SE.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon PCS-30 Choking/

Critical Flow PCS-31 RCS Metal Thermal Expansion Parameter

((

))

EM Variant I

Code

[I

)]

j)

((

J]

)]

((

)]

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 33 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters A detailed discussion regarding the NRC staffs assessment of this parameter can

((.

be found ((

)] in

((

Section 3.5.1.2 of this SE. The discussion therein introduces limitation and Condition 23, which requires, in part, that Framatome ((

((

)]

ll

)]

I) With this limitation and condition, the NRC staff finds the treatment of this arameter acce table.

The RCS ((

)] components ((

((

I]

((

I]

)]

)] and the effects of ((

I] volume expansion ((

)] Therefore. the NRC staff finds that the treatment of this parameter is acceptable.

The secondary side stored energy is defined by ((

I] SG mass inventorv. rr I) the secondary side stored energy.

This includes ((

((

I]

))

Continued on next Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

I]

((

I]

])

a -

IJl ll

t=*

...,.JI

((

I]

])

((

J]

))

OFFICIAL USE ONLY-PROPRIETARY INFORMATION 34 Uncer-Distri-Range I tainty Staff Evaluation Approach bution Parameters (Continued from previous page)

((

J] The NRC staff therefore finds ((

I] is reasonable ((

I) the NRC staff finds that the treatment of this parameter is acceptable.

((

I]

])

I) the NRC staff finds the treatment of this parameter acceptable.

((

[(I

((.

((

I) is conservatively ll

((

)]

])

I) the NRC staff finds that the treatment of this parameter is acceptable.

((

])

I]

I) Because of the conservative approach ((

I]

]) the NRC staff finds that the treatment of this parameter is acceptable.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

I)

))

Jj - -

e11t*

~

((

..,.JI

((

11

((

I I

))

I 11 OFFICIAL USE ONLY - PROPRIETARY INFORMATION 35 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters

((I

((

I)

I] the associated measurement uncertainty ((

I)

I] Limitation and Condition 5 will ensure acceptable treatment for alternative conditions. ((

((

I)

((

I)

J]

J] This is conservative.

Therefore. the NRC staff finds that the treatment of this oarameter is acceotable.

((

I]

((

I]

JJ I)

((

l]

([

I]

I)

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

])

~-

.,.1 **

- -.... -,~

((

])

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 36 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters The response to RAl-43 discusses the process involved in modeling a steam generator. The process necessitates [(

((

]) With regard to heat transfer correlations, ((

((

I]

I) the pertinent heat transfer correlation ((.

ll I) correlation is used for subcooled heat transfer ((

J] for nucleate boiling ((

J) for steam cooling. With this approach, [(

])

J] Therefore, the NRC staff finds the treatment ((

11 is acceptable.

Framatome proposed rr

((

]) However, NRC staff

((

examined the reference and found no work was presented in or referenced through J]

])

J]

the citation to justify adequacy of ((

J) The staff therefore introduced Limitation and Condition 10, which requires this parameter

((

I) unless justified otherwise.

With this limitation and condition, the NRC staff finds the treatment of this parameter is acceptable. A detailed discussion regarding the NRC staffs assessment of this parameter can be found [(

J)in Section 3.5.1.2 of this SE.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

))

((

))

I]

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 37 Uncer-tainty Approach

((

))

((

I]

tt I]

Distri-bution

((

))

tt t[

l]

Range I Parameters

((

I]

tt

))

((

))

Staff Evaluation tt

)) The NRC staffs assessment of the underlying data ([

l) yields a similar result. This conservatism helps account for tr

)) Therefore, the NRC staff finds the treatment of this arameter is acce table.

The response to RAl-43 discusses liquid separation in the steam Qenerator separators. ((

]) the NRC staff finds the use of [(i acce table.

The response to RAl-43 indicates the target SG recirculation flow ((

assesses that this is effectively ([

I] The response to RAl-43 also indicates tt recirculation ([

I] The NRC staff notes tt Jl SG recirculation flow ((

and because SG recirculation tt

)] The NRC staff J] the SG I] Given this, I] the NRC staff finds that the treatment of this arameter is acce table.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 38 EM Variant Uncer-Distri-Range/

Phenomenon Parameter I

tainty Staff Evaluation Code Approach bution Parameters The response to RAl-43 discusses liquid separation in the Steam Generator Separators. ((

((

)]

((

)) As a result, ((

)]

)) the steam exiting the SG moisture separators

])

is already high quality and the SG dryer hardware and mist deposition are typically not modeled. ((

J] the NRC staff finds that ((

is acce table.

((

)] of the response RAl-9, moisture carryover is ([

)] moisture carryover is ((

((

)]

((

)) The NRC staff has assessed this item in Section 3.5.1.2 of I]

])

the SE, concluding with Limitation and Condition 11, that licensees using the

])

ARITA methodology must ( 1) validate that [t I) or (2) otherwise demonstrate that rr

((

I]

((

I]

I)

])

((

((I

((

[(,

[(

IJ I]

])

I]

)]

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

11

)]

((

,.,,..,.~

llml

((

)]

11

((

11

)]

((

__ 1,.* t*iureJII

II~ - t

((

)]

I]

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 39 Uncer-Distri-Range I tainty Staff Evaluation Approach bution Parameters

((

[f

((

7 JJ

)]

I]

((

I]

((

I]

)]

((

The MFW ((

I] Nominal feedwater

[(

temperature as a function of ((

)] is used and the associated

((

11 I]

measurement uncertainty is ((

I) Because a conservative ((

I)

)] the NRC staff finds that treatment of this parameter is acceptable.

The response to RAl-32 indicates ((

((

I]

[(

I]

J]

)]

The NRC staff finds the treatment of the present parameter acceptable [t

]) because the ((

I) is conservative with respect to ((

I)

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

~

er.

([1

_1.. 1' ** llll*J*J

~ II~ -

11 1 I]

11

((I

((

))

I]

((:

((

I I

))

11

~~ ((:

e1a11

((

))

I]

((.

((

)]

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 40 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters

((

-I IJ I]

))

((

]

11

((

1)

J

((

I]

((

I J

I]

((

JJ

((

I]

))

)] the NRC staff finds that the treatment of this parameter is acceptable.

MFW flow isolation is dependent on actuation setpoints and isolation/control valve

((

response time. ((

((

I) in the actuation setpoints and response

((

I]

times of the main feedwater isolation valves (MFIVs) and control valves ([

I]

)] The MFIV response time is defined by ([

I] Therefore, the NRC staff finds that the treatment of this parameter is acceptable.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 41 EM Variant Uncer-Distri-Range/

Phenomenon Parameter I

tainty Staff Evaluation Code Approach bution Parameters Isolation valves are provided on the MFW supply to the steam generators. If these valves close, it is possible that flashing can occur in the associated piping ((during some events. This can impact the main steam system (MSS) pressure response

((

and steam generator level. MFW piping may be modeled explicitly, or a conservative estimate of FW mass is added to the steam generator to account for

((

FW flashing. Cold, best estimate dimensions are used to generate model input.

((

The piping and component volumes are defined from plant licensing

((

ll documentation. In the event an)) additional mass of FW is added to the SG ((

I)

))

11 This is a reasonable approach because it accounts for ((

I)

II

)) the NRC staff finds that the treatment of this arameter is acce table.

((

))

((

I)

))

((I

((

((I I]

((

I)

))

J]

((

I)

((

I)

I))

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

ll

))

((

J]

))

0111

11: "....

...,ue JII

((

))

I)

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 42 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters Auxiliary feedwater (AFW) injection and regulation is dependent on RPS and ESFAS actuation setpoints, [(

I] and fluid temperature. ((

11

((

actuation setpoints ((

I) the AFW ((

((

I)

((

I

)

I]

I) AFW ((

I) is defined by ((

I]

((

I) is conservative. ([

I) the NRC staff finds that the treatment of this parameter is acceptable.

AFW injection and regulation is dependent on RPS and ESFAS actuation setpoints, AFW [(

I) and fluid temperature. ((

1) actuation setpoints ((

((

I) the AFW ((

((

I)

((

I

)

))

)) which is conservative. ((

I] the NRC staff finds that the treatment of this oarameter is acceotable.

Framatome proposed ((

I) However, the NRC staff noted that ([

((

)) may have correlated ((

((

)] while Framatome's response to RAl-66 discusses treatment of correlated and

])

)

I) uncorrelated uncertainties. it is not clear from the resoonse that ((

)) Therefore, the NRC staff introduced limitation and Condition 6, which requires licensees implementing the ARITA methodology treat [(

)) With this limitation and condition, the NRC staff finds the treatment of this parameter is acceptable. A detailed discussion regarding the NRC staffs assessment of the present parameter can be found rr l1 in Section 3.5.1.2 of this SE.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

))

&Ba.

((

))

I)

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 43 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters The homogeneous equilibrium model (HEM) for critical flow is used for the SG exit nozzle or inline flow restrictor. ((

)I For subcooled or two-phase choked flow conditions,

((

I] for HEM single-phase vapor choked flow. tr

((

ll

((

I)

)) for the SG outlet nozzle or flow restrictor. ((

)) the single-phase vapor [t

]) A detailed discussion of the NRC staff's assessment of this treatment for the present parameter can be found

((

)) in Section 3.5.1.2 of this SE. Per the discussion therein, the NRC staff finds the treatment of this parameter is acceptable er 11 The homogeneous equilibrium model (HEM) for critical flow ((

)I For single-phase vapor choked flow,

((

I)

((

With respect to subcooled and two-phase flow, ((

((

I] The response to RAl-69a indicates

))

two-phase choked flow ((

ll

)I I)

(Continued on next page)

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

I]

))

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 44 Uncer-tainty Approach

((

I]

((

I]

Distri-Range/

bution Parameters

((

))

I)

((

IJ Staff Evaluation (Continued from previous page) the NRC staff finds that the treatment of this parameter is acceptable. A detailed discussion of the NRC staffs assessment of this treatment for the oresent parameter can be found ((

)) in Section 3.5.1.2 of this SE.

((

I)

Framatome asserted that industry-accepted flow resistance formulations, developed from experimental measurements, ((suggest a normal uncertainty

)) per Limitation and Condition 5, ([

)) Based on the conservativeness [(

]) the NRC staff finds that the treatment of this parameter is acceptable.

((

response time. ([

defined [(

I) which is conservative. [(

J] MSL flow isolation [(

)) actuation setpoints and MSIV closure J] setpoint and uncertainty are

)) the NRC staff finds that the treatment of this parameter is acceptable.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

))

((

J]

))

((

))

[ti

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 45 Uncer-Distri-Range I tainty Approach bution Parameters

((

MSIV closure ((

((

11

((

Staff Evaluation 11 ll 11 is conservative. Therefore, the NRC staff finds that treatment of this parameter is acceptable.

((

J]

ll

((

I)

((

11

((

I)

((

ll Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

))

((

))

1 ll *

-~~

((

))

((

I]

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 46 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters Main steam safetv valve (MSSV) setooints [(

)) MSSV ((

((

))

I]

ll I] Because of this conservative approach, ((

I] the NRC staff finds that the treatment of this parameter is acceptable.

((

MSSV flow [(

((

I]

((

I I] The use of a MSSV [t

]

I) is conservative. ([.

)) Therefore, the NRC staff finds that the I]

treatment of this parameter is acceptable.

((

I]

((

I]

I] does not adversely influence the ((

I) figure of merit. Therefore, the NRC staff finds that the treatment of this parameter is acceptable.

((

I) is unimportant relative to the figures of merit. (('

)) which is conservative. ([

((

I]

((

I

]

))

)) the NRC staff finds that the treatment of this parameter is acceptable.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon Parameter

((

j]

((

)]

((

))

((

J]

EM Variant I

Code

((

))

((

))

((

))

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 47 Uncer-tainty Approach

((

I]

((

))

((

II Distri-bution

((

I]

((

))

((

I]

Range I Parameters

((

))

((

Staff Evaluation

((

)] and is thus conservative. Because of the conservative approach

((

I] NRC staff finds the treatment of this parameter is acceptable for coupled and OD EMVs.

((

I]

Framatome asserted that industry-accepted flow resistance formulations, developed from experimental measurements, ((

)] per Limitation and Condition 5, ((

))

Based on the conservativeness ((

I] the NRC staff finds the treatment of this arameter acce table.

((

J] A detailed discussion regarding the assessment ((

)) in Section 3.5.1.2 of this SE. With the introduction of Limitation II and Condition 8 rr I] the NRC staff finds treatment of this parameter acceptable ((

I]

Treatment of this parameter is assessed alongside ((

)] A detailed discussion regarding the assessment ((

((

ll I]

J]

I) in Section 3.5.1.2 of this SE. Per the discussion in Section 3.5.1.2 of this SE, the NRC staff finds the treatment of this parameter acceptable [t

)]

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

[(

((

))

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 48 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters The HEM for critical flow is used ([

]) single-phase vapor choked flow. [(

((

I) single-phase vapor choked flow. ([

((

I]

)) A detailed discussion of the NRC staff's assessment of the treatment for this parameter can be found [(

)) in Section 3.5.1.2 of this SE. Per the discussion therein the NRC staff finds the treatment of this parameter acceptable.

The HEM for critical flow is used ([

]) subcooled and two-phase choked flow.

((

I]

With respect to subcooled and two-phase flow, ((

((

I]

))

I)

))

A detailed discussion regarding the NRC staff's assessment of this parameter can be found [(

)] in Section 3.5.1.2 of this SE. The discussion therein introduces limitation and Condition 23, which requires ((

I) With this limitation and condition, the NRC staff finds the treatment of this parameter acceptable.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

~~~-~

((

,.~

))

((

=*

.. 11:'Er1ne111

_ "1:.:....n ll

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 49 Uncer-Distri-Range/

tainty Approach bution Parameters

((

Staff Evaluation

((

I]

))

I] conservatism is introduced [(

I]

I) the NRC staff finds the treatment of this phenomenon acceptable. A detailed discussion of this oarameter mav be found ((

11 in Section 3.5.1.2 of this SE.

Framatome proposed ((

the boiler region ((

((

))

((

))

However, as discussed in ((

ll J]

Additionallv. the NRC staff noted tr J] are not representative of ((

I]

11 Therefore, the NRC staff introduced Limitations and Conditions 11 and 12, which respectively indicate ((

)) With these limitations and conditions, the NRC staff finds that treatment of this parameter is acceptable. A detailed discussion regarding NRC staffs assessment of the present parameter can be found rr 11 in Section 3.5.1.2 of this SE.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

el!!

wt.

~...

))

((

I)

))

Je *. *

((

.....~

n

))

((

J]

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 50 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters

((

I) The effects of ((

((

I]

((

J] volume expansion [(

J]

))

I) Therefore, the NRC staff finds treatment of this phenomenon is acceptable ((

J]

Turbine control valve (TCV) / Turbine governor valve (TGV) ((

)) with

((

consideration that conservatisms rr

((

J]

))

j)

)) the NRC staff finds that the treatment of this item as a tuning parameter is acceptable.

((

)) turbine control valve (TCV)/ turbine governor valve

((

I (TGV) ((

I)

((

I]

)

Control modes are defined bv olant licensina documentation. rr.

))

I) the NRC staff finds that the treatment of this parameter is acceptable.

((

)) operation of turbine valves [(

)) TCV/TGV ((

((

I)

((

I

)

))

I] Because of the conservative, ((

I] the NRC staff finds that the treatment of this oarameter is acceotable.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code TG-2a

Coupled, Post-Trip OD Power to

. --~

RCPs (S-RELAP5)

((

1:!lo.

-. -~

J]

])

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 51 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters TBD TBD TBD TBD (PS)

Operation of RCPs following a turbine-generator trip or loss of offsite power may influence DNB margins and other parameters immediately following the trip.

Continued operation of the RCPs mav also affect rr I]

In general, the NRC staff interprets Framatome's statement in Table 3-1, "Chapter 15 SRP Matrix," of ANP-10339P that "[t]he ARITA methodology only credits safety grade equipment to mitigate the consequences of a transient" as an indication that the performance of the RCPs would not be credited as a benefit. Framatome's response to RAI 22 confirmed this position but noted that the timing of a loss of

[(

offsite power would be maintained consistent with the existing licensing basis.

((

I]

((

II

((

])

)] The NRC staff further notes that, consistent with Limitation and Condition 1, licensees implementing the ARITA methodology are responsible for addressing the compatibility of the ARITA methodology against licensing basis positions that deviate substantially and non-conservatively from the existing SRP

((

)]

Therefore, the NRC staff finds the aooroach acceptable.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

--~***

I J]

))

((

ii _

_;-F,;1.Yl:..I; 1111

.. ~

((1 II

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 52 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters Plant licensing bases may rely upon operator actions to respond to or terminate certain events. [(

]) operator actions are determined by plant licensing documentation and [(

II is based on the plant licensing basis. However, the conservative assumptions made to determine operator actions times within the current licensing ff bases for many plants were developed and justified using older, deterministic methods with fundamentallv different analvsis approaches and safety margins. ([

((

II

((

))

ll II the conservative assumptions made in a plant's current licensing basis may no longer be conservative upon application of the ARITA methodology. Therefore, the NRC staff introduced Limitation and Condition 14, which requires licensees to assess whether assumptions concerning operator actions remain conservative for the ARITA analysis. With this limitation and condition, the NRC staff finds that the treatment of this parameter is acceptable. A detailed discussion regarding the NRC staff's assessment of the present parameter can be found [(

II in Section 3.5.1.2 of this SE.

((

]) effective delayed

((

II

((

([

neutron fraction values from ARTEMIS ([

I]

J]

I] Delayed neutron fraction changes as a function of exposure, [(

II Delayed neutron fractions ([

II are computed using the NRC-approved

((

ARTEMIS code (Reference 17) and validated indirectly throuQh startup physics

((

j)

I]

))

measurements utilizina a reactimeter. rr

)) the NRC staff finds that the treatment of the Present Parameter is accePtable.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

1* **~m* ;'

.. ~

))

I]

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 53 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters Effective delayed neutron fraction ((

J] as determined in the NRC-approved ARCADIA methodology (Reference 16). Framatome asserts the delayed neutron fraction ((

((

I]

((

[(I Effective delayed neutron fractions are generally well-defined and documented,

))

and the NRC staff therefore finds Framatome*s approach ((

)) to be I]

conservative. ((

)] Regarding this approach, NRC staff made note of the following. First, ((

I]

(Continued on next paqe)

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

ii ~--1--::,u~;'i

~~--.

J]

((

.-. u*JII

))

1lliml OFFICIAL USE ONLY -PROPRIETARY INFORMATION 54 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters (Continued from previous page)

Second, the NRC staff examined ((

)] and observed the results are comparable. ((

)] the NRC staff finds ((

J] the treatment of this parameter acceptable.

[(

J] mean generation time ((

J] Additionally, Table 8-3, "ARTEMIS Neutronic Assessment Base,* of the TR indicates only prompt critical responses are dependent upon this parameter. Mean generation time is generally dominated by the delayed neutron fraction response, [t

((

l) However, for conditions of prompt criticality or prompt supercriticality, the mean generation time is dominated by the prompt neutron response. Therefore,

((

I]

((

the NRC staff finds the treatment of the present parameter ((

11

)] acceptable for events that do not experience prompt criticality.

J]

However, it is not clear from the response to RAI 9 that Framatome ((

)] Therefore, the NRC staff introduced limitation and condition 15, which requires, in part, the use of the coupled EMV to analyze events that exhibit a prompt critical response. With this limitation and condition, the NRC staff finds the treatment of this parameter acceptable [t l) A detailed discussion regarding the NRC staffs assessment of the present parameter can be found

([

11 in Section 3.5.1.2 of this SE.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

[(1 I]

...,ulltl I]

nm

[(

((

I]

11 *

1u-,..,

))

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 55 Uncer-Distri-Range /

tainty Staff Evaluation Approach bution Parameters

((

I] in prompt supercritical excursions; ((

I) Additionally, Table 8-3 of the TR indicates only prompt critical responses are dependent upon the mean generation time. Therefore, consistent with [(

I] the NRC staff

((

finds the treatment of the present parameter reasonable for events that do not experience prompt criticality.

[(

((

I]

The event most often associated with a prompt critical excursion in a PWR is the rod ejection accident. Per Section 1.0 of ANP-10339P, the ARITA methodology defers to ANP-10338P-A for control rod ejection accident analyses. However, there may be other events within the scope of the ARITA methodology that exhibit a prompt critical response under specific conditions. Therefore, the NRC staff introduced Limitation and Condition 15, which requires, in part, justification be provided for the treatment of this parameter for applicable events within the scope of the ARITA methodology that exhibit a prompt critical response. With this limitation and condition, the NRC staff finds the treatment of this parameter acceptable. A detailed discussion reQardinQ the NRC staffs assessment of the oresent oarameter can be found rr 11 in Section 3.5.1.2 of this SE.

As discussed in ANP-10297P-A, Framatome estimated Doppler reactivity coefficients usino ARTEMIS and compared them to measured data. rr

((

J]

j)

((

ll I]

I]

(Continued on next page)

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

11

[I I]

((

)]

11

((

~

)]

lmre *..

tll'

((

)]

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 56 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters (Continued from previous page)

((

]) a position that is not fully justified within ANP-10339P. Therefore, the NRC staff introduced Limitation and Condition 16,

((

I]

((

I]

((

11 which ((

I] With this limitation and condition, the NRC staff finds the treatment of the present parameter acceptable ((

I) A detailed discussion regarding the NRC staff's assessment of this parameter can be found ((

II in Section 3.5.1.2 of this SE.

((

11 the

((

moderator temperature coefficient (MTC). rr II

)]

The nominal MTC is ((

((

11

((

]

I]

II which is conservative. Therefore, the NRC staff finds that the treatment of this oarameter is acceotable.

((

11 Data referenced in ANP-10297P-A (Reference

((

((I I]

)]

16) showed ((

)]

J]

(Continued on next page)

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

))

~

((

I]

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 57 Uncer-Distri-Range I tainty Staff Evaluation Approach bution Parameters (Continued from previous page)

((

((:

((

J]

])

I] Regarding this approach, NRC j) staff examined rr I] and observed the results are comparable. ((

)] is conservative, the NRC staff finds ((

J] the treatment of this oarameter acceotable.

((

J] Although the MTC ((

((

I) from

((

ANP-10297P-A /Reference 16). the startuo ohvsics rr I]

])

I]

I) In general, any measurement uncertainty value is a result of multiple contributing errors aside from the parameter of interest (e.g., instrument uncertainties, controller system response uncertainties, etc.).

(Continued on next page)

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon Parameter

((

II EM Variant I

Code OFFICIAL USE ONLY-PROPRIETARY INFORMATION 58 Uncer-tainty Approach Distri-bution Range I Parameters Staff Evaluation (Continued from previous page)

((

II The NRC staff assessed ((

very well approximated [(

I] The NRC staff noted ((

J] the absolute MTC ((

J] it is II Additionally, the NRC staff observed ((

)] is equivalent to [t

)) the data referenced therein. Therefore, there is consistency [(

]) Regarding this approach, NRC staff examined ((

I] and observed the results are comparable. ((

((

II the treatment of this parameter acceptable rr 11 Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

~

((

e -

Ill'

])

11

((

~

I]

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 59 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters

((:

((

Treatment and justification are the same as that for ((

I) Given the ll

])

justification above ((

I] the NRC staff finds treatment of this parameter is acceptable for the OD EMVs.

I]

The ARTEMIS code is validated with total rod worth measurements during startup testing at hot zero power (HZP). Per ANP-10297P-A (Reference 16), total rod worth data was verified ((

((

((I J]

])

I]

I] Regarding this approach, the NRC staff examined ((

I]

and observed the results are comparable.

Lastly, the NRC staff noted ((

)) is not consistent with the results from ANP-10297P-A, wherein ((

I] the response to RAl-9 indicates the ((

I) is a result of reprocessing the data from ANP-10297P-A ((

I] The NRC staff finds this reasonable.

((

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

I]

((

~

))

((

))

((

--...- Hf.L'l',H I I]

((

))

((

I)

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 60 Uncer-Distri-Range I tainty Staff Evaluation Approach bution Parameters I) the NRC staff finds the treatment of this parameter acceptable [t I)

((

)) the total bank worth ((

I) determined within ANP-10297P-A (Reference 16),

((

I]

J]

j) while takina into consideration the maximum stuck rod worth ((

) the NRC staff finds that the treatment of this oarameter rr 11 is acceotable.

((

J] by evaluating minimum shutdown margin requirements. This is conservative.

((

ll I]

I) This is ll conservative.

Based on the treatments described above, ((

)) the NRC staff finds the treatment of this parameter acceptable ((

]J in Section 3.4.2.4 of this SE for additional discussion on the treatment of this parameter.

((

I)

((

I]

((

I]

((

J]

((

J]

((

I]

I] rod worth is used ((

I) determined within ANP-10297P-A ((

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

~

iibI:J -

I]

))

((

.... ~~

I]

m-Eil

,..11 1e111

))

((

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 61 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters

)) the NRC staff finds that the treatment of this parameter is acceptable ((

I)

I]

((

I) Given this, the maximum individual bank worth ([

)) The ANSI/ANS-19.6.1-2019, "Reload Startup Physics Tests

((

for Pressurized Water Reactors," startup physics testing typical acceptance ll

))

criterion for individual bank worth uncertainty is +/-15 percent. ([

I)

The NRC staff finds the treatment of this parameter acceptable ((

J] A detailed discussion regarding the NRC staff's assessment of the present parameter can be found ((

J) in Section 3.5.1.2 of this SE, and in limitation and Condition 25. which addresses rr

))

((

)) the RCS critical boron concentration,

((

I]

((

I]

))

)) accounts for the effects of boron concentration ((

I) the NRC staff finds the treatment of this parameter

((

)) acceptable. ff I]

((

I]

((

boron concentration is used for rr

((

I) boron concentration is used. NRC staff finds treatment of the present parameter acceptable [t 11 Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code taimID

((

JI JI OFFICIAL USE ONLY -PROPRIETARY INFORMATION 62 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters TBD (PS)

The effects of boron concentration ([

)] are accounted for via ([

JI The ARITA methodology and the underlying ARTEMIS nodal code (ANP-10297P, Reference 16) utilize ((

I]

[I ARTEMIS utilizes ((

((

and the NRC staff's SE found ARTEMIS acceptable based, in part, on validation

((

data ((

I] Additionally, the response to RAl-51 presented I]

I]

j) additional data ([

JI that demonstrate the ability to II predict boron concentration ((

)] Because the ((

I] is confirmed upon startup testing and because the large dataset supports ((

]) is unexpected, ((

I] Therefore. the NRC staff finds the treatment of the present parameter acceptable ((

Jl Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

--~"':'9..3:!

((1

((

~

1r.; 11e1 1

))

I]

((

I]

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 63 Uncer-tainty Approach

((

))

((

I]

Distri-Range/

bution Parameters

((

I

]

I]

((

))

I]

Staff Evaluation The effects of boron concentration ((

I] are accounted for via ((

I) The justifications discussion for (( the J] (see above) remains applicable ((

11 Therefore, the NRC staff finds that the treatment of this parameter ((

J] is acceptable.

((

]) For critical boron concentrations I] which Framatome considers excessive based upon available data ((I NRC staff note this justification assumes a linear relationship between boron worth and critical boron concentration. While well-approximated as linear over small changes, differential boron worth isn't strictly linear. NRC staff therefore assessed the change in boron worth associated with ((

I) This indicates Framatome is

((

I]

which is conservative ((

I] Therefore, because of the conservativeness and consistency with available data ((

I) the NRC staff find the treatment of this parameter acceptable.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

~

l

]

I]

((

1-*-*1*::..

I]

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 64 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters Within the ARITA methodoloqy, power asymmetry is ((

I] From this perspective, power asymmetry is ((

I] As such, acceptability of this parameter is dependent upon the treatment of the underlvinq inputs. rr

[I

((

I]

((

11 ll I]

Power asymmetries are a result of either asymmetrical rod configuration (such as dropped rod or stuck rod) or differences in the reactor coolant inlet temperature between loops (possible cause by a MSLB). Of particular importance is the manner in which the HZP post-trip MSLB event is analyzed with respect to a stuck rod: this event has the potential to cause a severe power asymmetrv. rr I) assessment of this [(

I] was found acceptable. The MSLB event definition, and associated conservatisms, are discussed in a number of places in this SE, including Sections 3.4.2.3, "Conservative Parameter Treatments," 3.4.2.5, "Conservatism of Event Definitions for Each SRP Event Category," and Appendix Ill. Because the underlying parameters and event definitions are treated in a conservative manner, NRC staff finds the treatment of the present parameter to be acceptable.

((

J] values of excore flux are calculated by the ARTEMIS nodal ll

((

model ((

((

I]

11 Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

))

(('

((

~l!h:F.n I)

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 65 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters

((

I)

((

I]

((

I]

I] the NRC staff finds treatment of the present parameter acceptable.

I[

A detailed discussion regarding the NRC staffs assessment of this parameter ([

I] can be found ((

I] in Section 3.5.1.2 of this SE. Treatment of this parameter ((

11 utilizes the ((

)) decay heat model. ((

((

I]

((

I

]

a 11 For event analvses that model decay heat, the decay heat is ((

I) Because of the conservative nature of this approach, the NRC staff finds the treatment of this parameter acceptable ((

11 Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

))

((

I *.. -

I)

((

I)

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 66 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters Treatment of this parameter rr 11 utilizes the rr I[

decay heat model. ((

((

I)

((

I

)

I) For event analvses that model decav heat. the decav heat is rr I)

A detailed discussion regardinQ the NRC staffs assessment of this parameter ((*

II

)) can be found ((

I) in Section 3.5.1.2 of this SE. Per the discussion therein, the NRC staff finds the treatment of the present parameter to be acceptable £(

11 For the static EMV, ([

I) indicates there is no biased or sampling treatment of the decay heat because [(

)) The response to RAl-35 expands on this point, indicating the

((

I) static EMV is used to analyze steady state Mode 1 conditions (such as statically misaligned rod). Therefore, the decay heat is not modeled. Because only the total core power is relevant under static conditions, the NRC staff finds the implicit treatment of this parameter for the static EMV to be acceptable. For a more detailed discussion regarding assessment of the present parameter for the static EMV, see rr 11 Section 3.5.1.2 of this SE.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION 11

EM Variant Phenomenon Parameter I

Code

((

~

))

I]

((

~

I]

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 67 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters er I

((.

((

I) ll I

))

Within the ARITA methodology, ((

]) the 3D kinetics solution ((

]) the ARITA methodology includes ((

((

I]

From this perspective, 3D kinetics solutions are ((

I]

J] As such, acceptability of the present parameter is dependent upon the treatment of ((

I] ((

I) are found acceptable, NRC staff finds the treatment of the present phenomenon to be acceptable.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon Parameter

((

I)

EM Variant I

Code

((

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 68 Uncer-tainty Approach

((

I]

Distri-bution

((

I)

Range I Parameters

((

Staff Evaluation

((

)) enthalpy-rise hot channel peaking factor (Fi>.H) ((

approach ((

)] is conservative. ((

I] This I] the NRC staff's assessment of the process is discussed in Section 3.4.4.2 "Reactor

))

Core" of this SE. ((

I] Therefore, the NRC staff finds the treatment of this parameter to be acceptable ((

I) The OD EMV does not evaluate peaking effects relative to SAFDLs, therefore this parameter is not applicable to the OD EMV.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon Parameter

((

I]

EM Variant I

Code

((

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 69 Uncer-tainty Approach

((

J]

Distri-bution

((

))

Range I Parameters

((

))

((

Staff Evaluation

]) indicates that the uncertainty in F t.H is

))

Uncertainties listed in the TS, Core Operating limits Report (COLR), or other plant documentation for F t.H are ((

))

determined in the NRC-approved ARCADIA steady state core design methodology (ANP-10297P-A, Reference 16) ((

The NRC staff examined the impact ((

comparable. ((

JI and observed the results are I) a conservative result. ((

11 the NRC staff finds

((

I] the treatment of this parameter acceptable ((

this arameter is not a licable to the OD EM.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon Parameter

[(

I]

EM Variant I

Code

[(

J]

OFFICIAL USE ONLY-PROPRIETARY INFORMATION 70 Uncer-tainty Approach

((

Distri-bution

[(

))

Range I Parameters

[(

Staff Evaluation Framatome proposed [(

I) F11H from the ARTEMIS nodal power predictions ((

However, NRC staff identified ([

I] appears to involve a substantial reduction in conservatism relative to the treatment of parameters subject to ([

J] and the approach specified in the NRC-approved AREA rod ejection methodology (ANP-10338P-A, Reference 26).

Additionally, NRC staff noted it is not clear whether the datasets considered ((

I]

significant neutron flux gradients associated with ff

)]Therefore, the NRC staff introduced Limitation and Condition 17, w hir:h rl'!m1irl'!!'i th!'! present parameter be treated through [(

I) consistent with the AREA methodology. With this limitation and condition, NRC staff finds treatment of the present parameter acceptable. A detailed discussion regarding the NRC staff's assessment of the present parameter can be found [(

)] in Section 3.5.1.2 of this SE.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon Parameter

((

I]

EM Variant I

Code

((

I]

OFFICIAL USE ONLY-PROPRIETARY INFORMATION 71 Uncer-tainty Approach

((

J]

Distri-bution

((

))

Range I Parameters

((

Staff Evaluation

((

I]

However, NRC staff identified that Framatome did not provide adequate justification for the equation it used to estimate the uncertainty in [(

I)

Therefore, NRC staff introduced Limitation and Condition 18, which stipulates that the uncertainty equation specified by Framatome in Section 9.1.3.2 of ANP-10339P is not approved and licensees may either (1) provide adequate justification

))

to use this approach, (2) conservatively estimate the relative uncertainty [(

I], or (3) justify an alternative approach. It should be noted that Limitation and Condition 18 does not modify the prescribed procedure in ANP-10339P that stipulates [(

I]

With this limitation and condition, the NRC staff finds [(

J] the treatment of this parameter acceptable [t I) (as discussed in LCN-15a1, this parameter is not applicable to the OD EM). A detailed assessment of this parameter can be found

[(

)) in Section 3.5.1.2 of this SE.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon Parameter

((

I]

EM Variant I

Code

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 72 Uncer-tainty Approach

((

I]

Distri-bution

((I

))

Range I Parameters

((

I]

Staff Evaluation

((

I] Framatome proposed ((

I]

However, ((

)), the NRC staff identified that Framatome did not provide adeauate justification for its equation for estimating the uncertainty

((

)] approach appears to involve a substantial reduction in conservatism. The NRC staff also noted that the datasets considered ((

II do not appear to reflect significant neutron flux gradients ((

II Therefore, the NRC staff introduced Limitation and Condition 19, which requires licensees imolementino the ARITA methodology to treat the present parameter through ((

)) or justify an alternative approach. With this limitation and condition, NRC staff finds treatment of the present parameter acceptable. A detailed assessment of this parameter can be found ((

I] in Section 3.5.1.2 of this SE.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon LCN-16 Event Specific Power Distributions Parameter

((

))

EM Variant I

Code

((

))

OFFICIAL USE ONLY-PROPRIETARY INFORMATION 73 Uncer-tainty Approach

((

I]

Distri-bution

((

))

Range I Parameters er I]

Staff Evaluation When determining ((

]) the response to RAl-62 indicates the ARITA methodolOQY ((

)) This is conservative because plants tend to operate ((

j] and take action should deviations manifest. However, this action is not strictly required. Thus, ((

]) appropriate level of conservatism ((

I) Because of these conservatisms ((

I) the NRC staff finds the treatment of the present parameter acceptable ((

)) Section 3.4.2.4 of this SE for additional discussion Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon LCN-16 Event Specific Power Distributions Parameter

((

)]

((

EM Variant I

Code

((

I)

((

I)

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 74 Uncer-tainty Approach

((

I]

((

I)

Distri-Range/

bution Parameters

((

I) 11

((

I)

)]

Staff Evaluation The event-soecific power distribution is dependent upon [(

I) Included among them are the effects of ((

)] and the axial power distribution. The axial power distribution is limited by operation within offset or imbalance ranges defined in TS ((

)) However, because ((

11 the application of ((

]) will serve to produce

((

I] an appropriate level of conservatism ((

11 Therefore, the NRC staff finds that the treatment of this arameter is acce table.

The event-specific power distribution is dependent upon ((

)] Included among them are the effects of ((

)) and the axial power distribution. The axial power distribution is limited by operation within offset or imbalance ranges defined in TS ((

11 In general, this approach is considered reasonable; ((

11 application of this rr 11 maintain an appropriate level of conservatism fl Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon LCN-16 Event Specific Power Distributions LCN-17 Energy Deposition Factor Parameter

((

))

EM Variant I

Code

[I

))

((

ll OFFICIAL USE ONLY -PROPRIETARY INFORMATION 75 Uncer-tainty Approach

((

J]

((

I]

Distri-bution

((

I)

((

ll Range I Parameters

((

))

((

I)

([

I]

Staff Evaluation The energy deposited directly into the moderator for a fission event (neutron slowing-down energy and gamma deposition) is primarily a function of the fuel design. ((

J] therefore indicates no uncertainty or distribution is defined for this parameter. Instead, a fixed value is used, the range for which Framatome stated typically encompasses 0.973 to 0.975 for current fuel designs. The specific value to be used for a given plant analysis would be defined in plant-specific licensina documentation. ([

J) Framatome confirmed the ranges ((

J] with MCNP calculations. Because the energy deposition factor has been determined to be in a small range for current fuel designs, and the specific value to be used will be obtained from plant-specific documentation (hence, any new fuel design resulting in a change in this value will be captured within plant licensing documents and utilized), the NRC staff finds that the treatment of this arameter is acce table.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon LCN-18 Rod and Assembly Bow Penalties Parameter

((

EM Variant I

Code

((

I]

((

I]

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 76 Uncer-tainty Approach

((

I]

Distri-bution

((

))

((

I]

tr II Range I Parameters

((

))

((

Staff Evaluation Rod bow ((

I] and assembly bow rr 11 are different phenomena that do not directly impact each other. ((

)] local power distribution effects for fuel pins that experience an increase in subchannel flow area, ((

J]

DNB effects for fuel pins that experience a decrease in subchannel flow area.

A detailed discussion regarding the NRC staffs assessment of the present parameter can be found ((

I] in Section 3.5.1.2 of this SE. Based upon the discussion in Section 3.5.1.2 of the SE. the NRC staff finds treatment of the present parameter acceptable ((

)]

Rod bow ((

II and assembly bnw rr 11,:m'! rliff1:m:mt nh?.nomena that do not directly impact each other. er

)] local power distribution effects due to an increase in coolant channel flow area (wide-wide water gap), ((

I) DNB effects due to a decrease in coolant channel flow area /narrow-narrow water gap). ((

))

A detailed discussion regarding the NRC staffs assessment of the present parameter, ((

)) can be found ((

II in Section 3.5.1.2 of this SE. Based on ((

J] the conservatism of the approach as discussed in Section 3.5.1.2 of this SE, the NRC staff finds treatment of this parameter to be acceptable ((

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon TH-1 Non-Uniform Core Inlet Flow Distribution Parameter

((

EM Variant I

Code

((

))

OFFICIAL USE ONLY-PROPRIETARY INFORMATION 77 Uncer-tainty Approach Distri-bution Range I Parameters Framatome will ((

Staff Evaluation II core inlet flow maldistribution tr

((

ll

((

II Because previously approved ((

))

I] the NRC staff finds treatment of this parameter to be acce table.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon Parameter EM Variant I

Code I]

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 78 Uncer-tainty Approach

((

I]

Distri-bution

((

ll

((

I]

((

J]

Range I Parameters

[I I]

((

Staff Evaluation Nonuniform flow resistance in the core is due to radial variations in the flow field resulting from unrecoverable and recoverable pressure differences. The response to RAl-43 indicates the unrecoverable pressure differences are addressed via TH-10 (spacer grid flow resistance) and TH-11 (bare rod fluid friction) while the recoverable pressure differences stem from local differences in the flow and pressure fields within the core, which are simulated using the subchannel variation of the Reynolds-averaqed Navier Stokes (RANS) equations in COBRA-based subchannelcodes. ((

I]

evaluation of both homoqeneous and mixed cores ((

I]

Given that COBRA-FLX explicitly models non-uniform flow resistances ((

J] on nonuniform flow are reasonably captured; the RANS equations have been in use for decades and have repeatedly demonstrated the ability to predict flow and energy distributions in PWR cores. [(

)) However, as discussed in the response to RAl-43, the ARITA methodology contains conservatisms [t These conservatisms include ([

J] Given these conservatisms and the conservative treatment of ((

J]

I] the NRC staff finds the treatment non-uniform flow resistance in the core to be acce table.

This phenomenon is related to ((

J] fuel assembly bow. A detailed discussion regarding the NRC staff's assessment of this phenomenon and I]

its relation to fuel assembly bow can be found ([

I] in Section 3.5.1.2 of this SE Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon TH-4 Fuel Rod Bow TH-5 Crossflow Resistance Parameter

((

I]

EM Variant I

Code

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 79 Uncer-tainty Approach

((

I]

Distri-bution

[I I]

Range I Parameters

((

Staff Evaluation

((

)]the effects of fuel rod bow: ([

)] local power distribution effects for fuel pins that experience an increase in subchannel flow area, ([

JI DNB effects for fuel pins that experience a decrease in subchannel flow area.

The DNB effects are ((

II Fuel rod bow causes a change in the distance between adjacent fuel rods and alters the associated subchannel coolant flow area. One side of the affected fuel rod experiences a coolant channel flow area increase while the opposite side experiences a coolant channel flow area decrease. These each cause different effects. In the case of coolant channel flow area increasing, DNBR performance improves due to additional coolant, but local power distribution also increases. In the case of coolant channel flow area decreasing, DNBR performance suffers, but a reduction in local power distribution also occurs. ([

I) The NRC staff examined ([

I) and confirmed its burnup dependence and applicability within the ARITA methodoloav. Therefore, the NRC staff finds the

+------+-----+-----+-------+-a=a.ar~o=-ac:a.:h.:...u to be reasonable.

[I

((I

((

COBRA-FLX (Reference 18) is used to model crossflow resistance. Framatome proposes ((

A detailed discussion regarding the NRC staffs assessment of this phenomenon can be found under TH-5 in Section 3.5.1.2 of this SE. Per the discussion therein, the NRC staff finds [l J] the NRC staff introduced Limitation and Condition 20, requiring Framatome to confirm ([

J) With this limitation and condition, the NRC staff finds the treatment of crossflow resistance to be acceptable ([

JJ Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon Parameter EM Variant I

Code

((

)]

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 80 Uncer-tainty Approach

((

I]

Distri-bution

((

I]

Range I Parameters

((

I]

Staff Evaluation COBRA-FLX (Reference 18) is used to model diversion crossflow. [(

J]

Diversion crossflow is generally associated with the lateral transfer of energy and momentum from one subchannel to another due to differences in local pressures (e.g., from spacer grid and mixing grid differences) and fluid conditions. Regarding homogeneous cores, the response to RAl-43 indicates the ability of COBRA-FLX to properly model diversion crossflow is demonstrated in various validations and experiments ((

II Within a homogeneous core, the intra-and inter-assembly subchannels are all uniform and exhibit similar pressure drops, ((

I]

With regard to mixed cores, the response to RAl-77 indicates the ability of COBRA-FLX to properly model diversion crossflow is demonstrated in the MARIGNAN tests, which modeled a mixed core configuration. The response also indicates potential uncertainties are accounted for in the impact of pressure loss coefficients

((

JI While the MARIGNAN tests demonstrate good agreement with experimental data, they do not necessarily mean ((

J] However, PLCs are a primary driver for diversion crossflow, and PLC uncertainty is [(

)] Table 77-1 of the response to RAl-77 indicates that the [I I] is conservative.

(Continued on next page)

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon TH-6 Diversion Crossflow TH-7 Grid-Induced Flow Mixing Parameter EM Variant I

Code

((

I]

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 81 Uncer-tainty Approach

((

I]

Distri-bution

((

11 Range I Parameters

((

I]

Staff Evaluation (Continued from previous page)

((I finds the ((

acceptable.

)I the NRC staff I) treatment of diversion crossflow is therefore COBRA-FLX (Reference 18) is used to model spacer grid-induced crossflow mixing. ((

I) for both homogeneous and mixed cores ((

I]

Spacer grid-induced crossflow mixing is based on the same phenomena discussed for diversion crossflow (TH-6), lateral transfer of energy and momentum from one subchannel to another due to differences in local pressures (e.g., differences in spacer grid and mixing grid geometry) and fluid conditions. Justification for treatment of the present parameter and discussion of its adequacy is largely the same as for TH-6. Within a homogeneous core, the intra-and inter-assembly subchannels are all uniform and exhibit similar pressure drops, tr I) With mixed cores, PLCs (also called spacer grid flow resistance) are a primary driver for grid-induced crossflow. tr

)I The MDNBR impact is ((

)) is conservative. ((

)) the NRC staff finds the treatment of grid-induced flow mixing is acceptable. See TH-6 for additional discussion.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon TH-8 Turbulent Energy Exchange TH-9 Two-Phase Flow / Voiding Parameter EM Variant I

Code

((

11

((

I]

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 82 Uncer-tainty Approach

((

11

((

11 Distri-Range/

bution Parameters

((

11

))

((

11 11 Staff Evaluation COBRA-FLX (Reference 18) is used to model turbulent energy exchange.

Framatome proposes ((

II A detailed discussion regarding the NRC staff's assessment of this phenomenon can be found under TH-8 in Section 3.5.1.2 of this SE. Per the discussion therein.

the NRC staff finds ([

II the NRC staff introduced Limitation and Condition 20, requirinq Framatome to ((

II With this limitation and condition, the NRC staff finds the treatment of turbulent energy exchange to be acceptable [t COBRA-FLX (Reference 18) is used to model two-phase flow and void fraction.

Framatome proposes ((

II A detailed discussion regarding the NRC staff's assessment of this phenomenon can be found under TH-9 in Section 3.5.1.2 of this SE. Per the discussion therein, the NRC staff finds ([

II the NRC staff introduced Limitation and Condition 21, requirinq Framatome ((

II With this limitation and condition, the NRC staff finds the treatment of two-phase flow/ voiding to be acce table Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon Parameter

((

J]

EM Variant I

Code

((

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 83 Uncer-tainty Approach

((

I]

Distri-bution Range I Parameters Staff Evaluation Spacer grid flow resistance is based on experimentally determined pressure loss coefficients (PLCs) which account for the unrecoverable pressure drop in the flow field due to the spacer Qrids' obstructinQ presence and overall Qeometrv.

((

I]

For homogeneous cores of a single Framatome fuel type, ((

J] The response to RAl-77b.6 indicates [t I] NRC staff finds this approach reasonable; in a homogeneous core of Framatome fuel the spacer grids are all of identical design and exhibit nearly identical pressure loss responses. ((

lJ For mixed cores comprised of different Framatome fuel designs, ((

]) The response to RAl-77b.6 clarifies this, ((

)) finds this approach reasonable for mixed cores of Framatome fuel designs.

For mixed cores where the resident fuel is a non-Framatome design, the response to RAl-78b indicates the PLCs for the non-Framatome fuel are derived from axial pressure drop data and core boundary conditions provided through data transfer from the utility customer to Framatome.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon TH-10 Spacer Grid Flow Resistance TH-11 Bare Rod Friction Parameter EM Variant I

Code

((

II OFFICIAL USE ONLY -PROPRIETARY INFORMATION 84 Uncer-tainty Approach

((

I]

Distri-bution

((

Range I Parameters

((

I]

Staff Evaluation (Continued from previous page)

((

J] and provided justification in Table 77-1, "PLC Uncertainty Impact on Inserted Fuel MDNBR," of the response to RAl-77. The NRC staff examined these results and ((

)) Because this approach captures the pressure loss effects of the non-Framatome fuel, the NRC staff find this approach reasonable and thus the overall treatment of spacer grid flow resistance to be acceptable.

((

JI The response to RAl-77b.6 indicates part of the PLC [(

)]

determination is the bare rod friction factor, and the standard form of the factor is used in both the ARITA analyses and the validation/development of the CHF correlations. Section 43.4.8, "TH-11: Bare Rod Friction," of the response to RAl-43 expands on this, clarifying the bare rod friction effects are included in the fuel assembly-specific CHF correlation 95/95 design limit and are used consistently in core analyses to ensure the same predictive capability between CHF tests and ARITA applications. The NRC staff finds this justification to be reasonable; ensuring the same predictive capability between ARITA applications and CHF tests through the use of the bare rod friction factor consistent with the CHF correlation development indicates the bare rod friction ((

I] is accounted for in the correlation's 95/95 design limit.

Within a homogeneous core, [(

l) With respect to mixed cores, the NRC staff notes the treatment of the PLCs [(I J] which may be provided by the licensee or determined from the bare rod friction factor and total assembly pressure drop (or equivalent data ),

are ((

)) Because of the conservative treatment ((

II The NRC staff therefore finds ((

the treatment of the bare rod friction to be acce table.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon TH-12 DNB / CHF Correlation TH-13 DNB Propagation Parameter

((

EM Variant I

Code

((

I]

((

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 85 Uncer-tainty Approach

((

))

Distri-bution

((

))

Range I Parameters

((

II

+------

((

I]

((

I]

j)

((

I]

The ARITA methodoloav rr the critical heat flux. ((

Staff Evaluation 11 calculate heat flux and

)] which assures an accurate determination of the 95/95 from the ARITA non-parametric order statistic uncertainty quantification method. ((

correlations is different, ((

((

)) the spread of data for all CHF

)) The NRC staff finds this approach reasonable II Because the CHF correlation is fuel-assembly-specific, different correlations may be used for different analyses or multiple correlations used in a single analysis for a mixed core. In each of these correlations, ((

I] In instances where the resident fuel in a mixed core is non-Framatome fuel, the response to RAl-77.d indicates ((

)] no DNBR calculations are performed for these fuel assemblies. ((

)] is still performed on the Framatome fuel being inserted. The NRC staff finds this approach reasonable because fresh fuel assemblies are generally limiting in mixed core DNBR calculations, and the licensee would remain responsible for assuring the safe operation of the resident fuel in accordance with the resident fuel vendor's licensed methods. Therefore, the NRC staff finds the treatment of this arameter acce table.

((

)]

The response to RAl-77b.8 indicates this is because the ARITA methodology uses an approach ((

I] The NRC staff finds this approach is conservative, and therefore finds the treatment of DNB propagation to be acceptable.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

ll I'

II Phenomenon Parameter I

I

((

J]

I I

I H

I I

])

EM Variant I

Code

((

I]

((

I)

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 86 Uncer-tainty Approach

((

I]

((

J]

Distri-bution

((

ll

((

ll Range I Parameters

((

))

((

Staff Evaluation Section 9.1.3. 7, "Manufacturing Tolerances," of ANP-10339P indicates, within the ARITA methodology, the effects of fuel manufacturing variations on ((

I) engineering hot channel factors (HCF). ((

)) However, Framatome has chosen to sample the ((

I] HCF using ((

))

The generation of the ((

J] HCF, ((

I) is a standard approach of determining the impacts of manufacturing tolerances ((

J] The sampling approach employed by Framatome ensures [(

I) which is conservative.

Therefore. the NRC staff finds that the treatment of this parameter is acceptable.

With respect to the ((

J] HCF, Table 9-2 of the response to RAl-9 indicates the variance in fuel manufacturing, ((

J] However, Framatome has chosen to sample the ((I I) HCF using ((

)) Based on the discussion provided in ((

that the treatment of this parameter is acceptable.

J) the NRC staff finds Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

([

j)

I)

((

J]

)]

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 87 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters With respect to ([

([

)] indicates the variance in fuel manufacturing, ([I

([

((

I) However, Framatome has chosen to sample the ([

))

IJ

)] HCF using ((

I)

J] Based on the discussion provided in ([

J) the NRC staff finds that the treatment of this arameter is acce table.

With respect to the ([

J] HCF, ((

((1

)] indicates the variance in fuel manufacturing, ([

((

]) However, Framatome has chosen to sample ([

J]

I]

J) HCF using ([

))

J] Based on the discussion provided in ((

I] the NRC staff finds that the treatment of this arameter is acce table.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon Parameter EM Variant I

Code

((

])

OFFICIAL USE ONLY-PROPRIETARY INFORMATION 88 Uncer-tainty Approach

((

11 Distri-bution Range I Parameters Staff Evaluation

((

)] the phenomenon of cladding surface heat transfer. Section 43.4.9, "THAP-2: Cladding Surface Heat Transfer," of the response to RAl-43 presents a justification for this position by identifying that, per Newton's Law of Cooling, a change in the surface heat transfer coefficient will yield a change in the cladding surface temperature for the same local coolant conditions and fuel rod surface heat flux. ((

J] Section 43.4.9 of the response to RAl-43 suggests

((

J] In an audit with Framatome on November 8, 2021 (ADAMS Accession No. Ml21309A 105), NRC staff examined ((

I] and confirmed the impact ((

Based on this, NRC staff finds the treatment of the present phenomenon to be acce table.

11 Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon Parameter EM Variant I

Code

((

))

((

I]

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 89 Uncer-tainty Approach

((

I]

((

I]

Distri-bution Range I Parameters Staff Evaluation tt

]) for radial and axial nodalizations. Regarding radial nodalizations, Section 43.4.10 of the response to RAl-43 points to Sections 5.1 and 5.5 of ANP-1031 1 P-A, Revision 1 (Reference 18), to support ([

)) The results presented in these sections demonstrate ([

)) across the range of radial nodalizations examined, ((

ll Regarding axial nodalization, ([

I] The response to RAl-52 provides the results of a sensitivity study demonstratinQ the variation in MDNBR from [(

J) axial nodes up to ([

J) axial nodes is ([

I] NRC staff notes the axial control volume size tr J] is consistent with the axial control volume size used in development of ([

)) the ARITA methodology.

Given these ([

)) radial and axial nodalization, and the consistency of the nodalization approaches used ((

)) the NRC staff finds Framatome treatment of the radial and axial nodalization acce table.

((

I) the impacts of ([

on ARTEMIS nodal model results ((

J] thermal-hydraulic parameters

)) Section 43.4.11 of the response to RAl-43 provides additional clarification of this approach by discussing how ((

J] the ARTEMIS nodal model produces less severe local conditions than tr (Continued on next page)

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code 11

' f 11 It I

II I

I

.- **l.

.~.,tr.

,.. i..1...

.v* -~

-~.

1 I

OFFICIAL USE ONLY - PROPRIETARY INFORMATION 90 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters (Continued from previous page)

((

J) in comparison to the ARTEMIS nodal model ((

)] Because the ARTEMIS nodal model uses quadrant-average conditions, it is expected that those phenomena and parameters which, ((

l]Therefore. NRC staff finds Framatome's justification in applying a subset of the thermal-hydraulic phenomena and parameters ((

J] to be reasonable.

Observing the thermal-hydraulic entries ((

11 NRC staff notes Framatome proposes ((

J] The NRC staffs assessment of these phenomena ((

I) is they are expected to ((

I) per discussions provided in this appendix for each of these, their proposed treatment is acceptable. For the remaining thermal-hydraulic phenomena and parameters ((

J] Of these parameters, NRC staff found ((

)) the proposed treatment requires modification ((

I) Therefore, the NRC staff finds the

((

I) application to the ARTEMIS nodal model to be appropriate.

((

J] NRC staff finds Framatome's treatment of the present phenomenon to be acceptable.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon FRR-1 Normal Operation Power and Fluence History Parameter EM Variant I

Code

([

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 91 Uncer-tainty Approach

([

I]

Distri-bution Range I Parameters Staff Evaluation FRR-1 addresses uncertainty in normal operation power history and fluence history. Transient power uncertainty is addressed in FRR-4.

With respect to the normal operation power history and fluence history, Framatome proposed ([

J] However. normal operation power history and fluence history inform the rod power at the start of a transient event, particularly when operation at multiple power levels throughout a cycle has occurred, ([

JI will have a cumulative effect over time. Limitation and Condition 26, introduced in Section 3.5.1.6 of this SE, states

((

I) the application of the ARITA methodology, as currently proposed in ANP-10339P, Rev. 0, ((

)) the cumulative effects ((

I] on power and fluence history are ([

I] Therefore, the NRC staff finds treatment of this phenomenon acceptable. A more detailed discussion regarding the NRC staffs assessment of this phenomenon can be found under FRR-1 in Section 3.5.1.2 of this SE.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon FRR-2 Fuel Pellet Radial Power Profile Parameter EM Variant I

Code

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 92 Uncer-tainty Approach

((

I)

Distri-bution Range I Parameters Staff Evaluation

((

II the fuel pellet radial power profile. Table 8-5 of ANP-10339P indicates this is because the pellet radial power profile ((

)) Section 43.5.2 of the response to RAl-43 indicates [t II Within the NRC staffs safety evaluation for the GALILEO methodology, ANP-10323P-A, Revision 1 (Reference 19), consideration was given to the thermal benchmarking results, and whether ([

)) the determination of fuel pellet temperature ((

)) As discussed in its response to RAI 9 for that review, Framatome ([

staff concluded the results acceptably ([

J] the nominal benchmarking results ((

I] and the NRC With respect to the ARITA methodology, NRC staff examined the response to RAl-9 of ANP-10323P-A, Revision 1 (GALILEO), and noted [t I) is therefore expected to produce results that conservatively ([

I] The NRC staff also noted ((

)) NRC staff further noted the ARITA methodology ((

J] in the determination of fuel pellet temperature

((

)) Therefore, based on the ((

II thermal benchmarkinQ results presented in RAl-9 of ANP-10323P-A, Revision 1, ((

II the NRC staff finds Framatome's approach [(

to be reasonable.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon FRR-3 Fuel Rod Axial Power Distribution FRR-4 Transient Power Conditions Parameter

((

I]

((

JJ EM Variant I

Code

((

I]

((

)]

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 93 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters This phenomenon addresses ((

I] axial power distribution. ((I I] Section 43.5.3 of Framatome's response to RAl-43 indicates [t I] therefore, Framatome indicates that justification for ((

)] also applies to the present phenomenon ((*

11 NRC staff assessment of the acceptable treatment of ((

J] is based on Limitation and Condition 26, which ((

I) by ensuring ((

((

I]

I) associated with the fuel rod axial power distribution. In particular, ((

I) are determined from the ARTEMIS nodal flux solution. ((

I) will have an impact on the determination of the nodal powers, particularly regarding poison depletion in heavily poison-laden assemblies.

However, given Limitation and Condition 26, [t I] Therefore, given the NRC staffs assessment [t I) (via Limitation and Condition 26). it follows that ((

I) Therefore, the NRC staff finds treatment of the fuel rod axial ower distribution acce table.

((

I]

((

I]

JJ Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 94 EM Variant Uncer-Distri-Range I Phenomenon Parameter I

tainty Staff Evaluation Code Approach bution Parameters

((

[t

((

JJ

))

I]

I)

((

))

)]

I]

((

J]

))

((

[I

((

rn

))

J]

))

J]

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

J]

((

))

((

))

([

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 95 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters rr

((

lJ I]

I]

((

((I JJ

((

I]

))

((

11 I]

l]

Framatome proposes ((

((

J]

((

A detailed discussion regarding the NRC staff's assessment of this parameter can I]

I]

be found ((

I] in Section 3.5.1.2 of this SE. In Section 3.5.1.6 of this SE, the NRC staff introduced Limitation and Condition 26, which ([

I] With this limitation and condition, the NRC staff finds the treatment of the present parameter acceptable.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon Parameter

((

J]

EM Variant I

Code

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 96 Uncer-tainty Approach

((

I]

Distri-bution

((

J]

Range I Parameters

((

Staff Evaluation

((

impact is fuel design-specific, ([

Section 9.1.3.4 of ANP-10339P indicates [t

]) The magnitude of the I]

I]

The application of ((

I] which is more representative of the expected transient conditions and more conservative compared to ((

I] NRC staff observed the ((

J] Additionally, NRC staff noted, in Section 9.1.3.4 of ANP-10339P, that Framatome stated [t

)] Therefore, NRC staff finds the treatment of the resent arameter to be acce table.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon Parameter EM Variant I

Code

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 97 Uncer-tainty Approach

((

11 Distri-bution Range I Parameters Staff Evaluation FRR-5 addresses the fuel rod response to transient coolant conditions.

([

11 the coolant pressure, temperature, and mass flow rate that GALILEO uses to analyze the fuel rod response ((

J] these oarameters does not have a sianificant effect on the overall fuel rod response. ((

I]

Within the ARITA methodology, GALILEO is used to determine the FCM and TCS FOMs. Transient coolant conditions are necessary inputs to determining these FOMs, but the dominating effects on them come from gap conductance, cladding heat conduction, and pellet heat conduction. ((

I) The NRC staff also notes the approach taken precludes ((

Therefore, NRC staff finds Framatome's approach ((

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon Parameter

((

I]

EM Variant I

Code

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 98 Uncer-tainty Approach

((

))

Distri-bution

((

ll Range I Parameters

((

)]

Staff Evaluation The GALILEO rr I] fission gas release ((

J] were reviewed and found acceptable in ANP-10323P-A, Revision 1 (Reference 19). Within ANP-10323P-A, Revision 1, ((

I]

The NRC staff notes [(

I) presented in Section 5.4.1.2 of ANP-10323P-A, Revision 1, [I

)) the fission gas release model predictions ((

)] that was approved in a previous NRC staff review of the GALILEO TR, NRC staff finds the treatment of the present parameter within the ARITA methodolo to be acce table.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon FRR-7 Heat Conduction Through Pellet Parameter

((

J]

EM Variant I

Code

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 99 Uncer-tainty Approach

((

J]

Distri-bution

((

))

Range I Parameters

((

Staff Evaluation tr J] specified in ANP-10323P-A, Revision 1 (Reference 19), for use in GALILEO ((

I) The NRC staff oreviouslv reviewed rr*

11 and found them acceptable ((

I] Framatome proposes. ((

I)

The application of ((

((

I) is conservative with respect to I) that was approved in a previous NRC staff review of ANP-10323P-A, Revision 1, and further recognizing the conservative application ((

I) the NRC staff finds the treatment of the present parameter acce table.

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon FRR-7 Heat Conduction Through Pellet Parameter

((

I]

EM Variant I

Code

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 100 Uncer-tainty Approach

((

J]

Distri-bution

((

))

Range I Parameters

((

ll Staff Evaluation Within the NRC staffs safety evaluation for the GALILEO methodology, ANP-10323P-A. Revision 1 (Reference 19), consideration was given to the thermal benchmarking results ([

I) As discussed in RAl-9 for that review, Framatome ([

I] and the NRC staff concluded the results acceptably ((

I]

With respect to the ARITA methodology, NRC staff examined the response to RAl-9 of ANP-10323P-A. Revision 1 (GALILEO). and noted tr I] expected to produce results that conservatively ([

)) The NRC staff also noted ((

I] the analyses is consistent with ((

)) Therefore. based on ((

NRC staff finds treatment of the present parameter to be acceptable for the cou led and static EMVs.

I] the Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

((

))

J]

((

J)

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 101 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters

((

I) obtained from an approved fuel rod thermal-mechanical code that ((

I) Within the ARITA methodology, the approved thermal-mechanical code is GALILEO. Therefore, the equations used to determine tr I) The NRC staff found the ((

I)

((

However, ((

)) identified within the GALILEO

((

TR ANP-10323P-A, Revision 1 (Reference 19), is for ((

I) Section 9.4 of J]

))

the response to RAl-9 indicates ((

JI The NRC staff finds this approach acceptable because ((

J] Therefore, the NRC staff finds the treatment of the present parameter acce table

((

J] specified in ANP-10323P-A, Revision 1 (Reference 19), for use in GALILEO ((

I] The

((

NRC staff previously reviewed ((

J] and found them acceptable

(('

((

J]

))

I] Nevertheless, IJ because of the proposal to ((

IJ (Continued on next page)

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon FRR-7 Heat Conduction Through Pellet FRR-8 Pellet-Cladding Gap Conductance Parameter

((

J]

((I I]

EM Variant I

Code

[I I)

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 102 Uncer-tainty Approach

((.

J]

Distri-Range/

bution Parameters

((

[(

J]

I]

Staff Evaluation (Continued from previous page)

[(

I) that was approved in a previous NRC staff review of ANP-10323P-A, Revision 1, the NRC staff finds the treatment of the present parameter acceptable [t Within the ARITA methodology, gap conductivity has varying levels of importance, depending on the FOMs being analyzed. The primary importance of gap conductivity is for determining the FCM and TCS FOMs, which is performed by the GALILEO code. The secondary importance of gap conductivity is for determining the impacts on DNBR and for modeling the effects of Doppler and moderator feedback, all of which is performed by the ARTEMIS code. [(

II Section 9.1.1.16.1 of ANP-10339P indicates Framatome proposes ((

)) The response to RAl-65 speaks further to the nature of this ((

)] This approach is consistent with [(

)] the approved AREA rod eiection methodoloov. ANP-10338P-A (Reference 26), [(

I]

NRC staff notes ((

response to RAl-65, ([

I) However, per Framatome's I)

(Continued on next page)

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon FRR-8 Pellet-Cladding Gap Conductance Parameter

((

J]

EM Variant I

Code OFFICIAL USE ONLY -PROPRIETARY INFORMATION 103 Uncer-tainty Approach Distri-bution Range/

Parameters Staff Evaluation (Continued from previous page)

[I respect to Doppler and moderator feedback effects, [t J] The NRC staff finds this approach is conservative.

The response to RAl-65 also indicates [(

NRC staff finds this is conservative.

Because of the consistency with the approved AREA methodology, ((

11 and the additional conservatism ((

I] With I] The I] NRC staff finds the treatment of the present parameter acceptable [t Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon FRR-8 Pellet-Cladding Gap Conductance Parameter

((

j]

EM Variant I

Code

((

)]

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 104 Uncer-tainty Approach

((

I]

Distri-bution

((

11 Range I Parameters

((

11 Staff Evaluation

((

I] Section 9.1.1.16.1 of ANP-10339P indicates Framatome proposes ((

)) through the procedure described above under [(

11 This aooroach is consistent with the gap conductivity ((

I] within the approved AREA rod ejection methodology, ANP-10338P-A (Reference 26).

((

I) The NRC staff finds this approach conservative.

The response to RAl-65 also indicates ([

I] The NRC staff finds this is conservative.

Because of the consistency with the approved AREA methodology, ((

11 and the additional conservatism ((

I] NRC staff finds the treatment of the present parameter acceptable ((

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon FRR-8 Pellet-Cladding Gap Conductance Parameter

((I J]

EM Variant I

Code

((

))

OFFICIAL USE ONLY-PROPRIETARY INFORMATION 105 Uncer-tainty Approach

((

J]

Distri-bution

((

J]

Range I Parameters

((

))

Staff Evaluation

((

I] the response to RAl-9 indicates Framatome proposes ((

)) This approach is consistent with the gap conductivity ((

J] within the approved AREA rod ejection methodology, ANP-10338P-A (Reference 26).

((

)) gap conductance is first ((

)) The NRC staff finds this approach conservative.

((

I) The NRC staff finds this is conservative.

Because of the consistency with the approved AREA methodology, ((

11 and the additional conservatism ((

]) the NRC staff finds the treatment of the Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon FRR-8 Pellet-Cladding Gap Conductance Parameter

((

I]

((

J]

EM Variant I

Code

((

)]

((

)]

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 106 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters

((

I] are

((

specified in ANP-10323P-A, Revision 1 (Reference 19), for use in GALILEO. The NRC staff previously reviewed these [(

J] and found them acceptable

((

J) the response to RAl-9, Framatome proposes ((

((

J]

I] Nevertheless, Framatome has proposed ((

])

was approved in a previous NRC staff review of the GALILEO TR. ([.

])

I] the observed results are comparable ((

I] Therefore, NRC staff finds the treatment of the present parameter acceptable [(

J]

((

)] are

((

specified in ANP-10323P-A, Revision 1 (Reference 19), for use in GALILEO. The NRC staff previously reviewed these ((

I] and found them acceptable

((

I) the response to RAl-9, Framatome proposes [(

((

J]

ll I] Nevertheless, Framatome has proposed [(

)) was approved in a previous NRC staff review of the GALILEO TR. ((

I] the observed results are comparable ((

)]

)] Therefore, NRC staff finds the treatment of the present parameter acceptable ([

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon FRR-8 Pellet-Cladding Gap Conductance FRR-9 Pellet-Cladding Gap Closure Parameter

((

J]

((

J]

EM Variant I

Code

((

))

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 107 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters

((

I) specified in ((

JJ ANP-10323P-A, Revision 1 (Reference 19), for use in GALILEO. The NRC staff previously reviewed this [(

I] and found it acceptable ((

((

))

I] Nevertheless, Framatome has proposed [(

J]

J] was approved in a previous NRC staff review of the GALILEO TR. [(

I] the observed results are comparable [I I) Therefore, NRC staff finds the treatment of the present parameter acceptable ((

((

I] specified in ((

I) ANP-10323P-A, Revision 1 (Reference 19), for use in GALILEO. The NRC staff previously reviewed this ((

I] and found it acceptable based, in part, on analyses demonstrating ((

((

I] data available in the GALILEO ((

)) model database ((

I] the response to RAl-9, Framatome proposes [(

I] for analyses involving GALILEO (coupled and static EMVs). [I

((-

((I I]

))

]) Nevertheless, Framatome has proposed ((

J]

))

was approved in a previous NRC staff review of the GALILEO TR. ((

I] the observed results are comparable [t

]) Therefore, NRC staff finds the treatment of the present parameter acceptable [(

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon Parameter EM Variant I

Code

((

))

((

))

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 108 Uncer-tainty Approach

((

1) u lJ

((

J]

Distri-bution

((

([

J]

((

))

Range I Parameters

((

))

((

))

((

11 Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION Staff Evaluation

Phenomenon FRR-10 Cladding Corrosion, Crud Deposition, &

Hydriding Parameter

((

ll EM Variant I

Code

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 109 Uncer-tainty Approach

((

ll Distri-bution

((

Range I Parameters

((

Staff Evaluation Multiple cladding-dependent ((

J] waterside oxidation are specified in Table 5-6 of ANP-10323P-A. Revision 1 (Reference 19). for use in GALILEO. The NRC staff previously reviewed these ((

J] and found them acceptable based, in part, on analyses demonstrating ((

oxide thickness. [(

proposes ((

static EMVs). [(

I] data available for cladding J] the response to RAl-9, Framatome J] for analyses involving GALILEO (coupled and

)) Nevertheless, Framatome has proposed [(

was approved in a previous NRC staff review of the GALILEO TR. [(

I] the observed results are comparable ((

)]

ll

)) Therefore, NRC staff finds the treatment of the present parameter acceptable [(

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon FRR-11 Burnup of Fuel Rod FRR-12 Manufacturing Uncertainties Parameter

((

j)

((

J]

EM Variant I

Code

((

))

((

))

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 110 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters FRR-1 1 addresses fuel rod burnup. Framatome does not apply any additional uncertainties to the determination of this value. ff 11 this is because burnup is integrated power and, as such, any associated uncertainty is inherently encompassed by other uncertainties in the GALILEO thermal benchmarking, as are the power histories.

Within GALILEO. burnuo is calculated based on rr 11 NRC staff noted Limitation and Condition 26, introduced in response to ((

((

I]

11 Ergo, the application of the ARITA methodology ((

I)

Reaardina ((

I] the NRC staff noted ((

I] approved in the review of the GALILEO methodology in ANP-10323P-A. ((

I) NRC staff finds Framatome's approach of not applying additional uncertainties within GALILEO when determining burnup to be acceptable.

A detailed discussion reQardinQ the NRC staffs assessment of this parameter,

((

11 can be found

((

I] in Section 3.5.1.2 of this SE. Given Limitation and Condition

])

))

I]

22, which requires [(

I] the NRC staff finds the treatment of the present parameter acceptable ((

I]

Framatome characterizes tr

((

1) Justifications for [t j)

))

I]

I] are the same as those discussed in

((

I) The NRC staff assessment of the justifications is likewise the same.

Based on the discussions presented [(

11, the NRC staff finds treatment of the resent arameter to be acce table Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon FRR-12 Manufacturing Uncertainties Parameter

((

I]

[(

))

((

))

((

))

EM Variant I

Code

((

))

((

))

((

))

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 111 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters Framatome characterizes the manufacturinQ uncertainty ([;

((

JJ Justifications for ((

JJ

))

I) are the same as those discussed in

((

)) The NRC staff assessment of the iustifications is likewise the same.

Based on the discussions presented in ((

11 the NRC staff finds treatment of the resent arameter to be acce table Framatome characterizes the manufacturing uncertainty ((

((

[(

((

]) Justifications for [I JJ

))

I] are the same as those discussed in ((

I) The NRC staff assessment of the justifications is likewise the same. Based on the discussions presented in ((

)) the NRC staff finds treatment of the present arameter to be acce table Framatome characterizes the manufacturino uncertaintv rr

[(

((

)) Justifications for ((

I)

))

I) are the same as those discussed in ((

J] The NRC staff assessment of the justifications is likewise the same. Based on the discussions presented in ((

I] the NRC staff finds treatment of the present arameter to be acce table Framatome characterizes the manufacturina uncertaintv rr I] Justifications for ((

)) are the same as those discussed in ((

I) The NRC staff

((

assessment of the justifications is likewise the same. In addition to the discussion

[(

((

in ((

JJ

))

I) the NRC staff notes that Sections 5.3 and 5.4.2 of ANP-10323P-A, Revision 1, indicate

[(

I) Based on the discussions presented in ((

I) and the above note ((

))

NRC staff finds treatment of the present parameter to be acceptable ((

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon FRR-12 Manufacturing Uncertainties Parameter

((

J]

((

])

((

I]

((

JJ EM Variant I

Code

((

))

((

))

((

))

((

))

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 112 Uncer-tainty Approach

((

11

((

I)

((*

J]

((

ll Distri-bution

((

11

((

))

((

))

((

))

Range I Parameters rr I)

((

11

((

))

((

))

Staff Evaluation Framatome characterizes the manufacturina uncertainty ((

)] Justification for ((

I) was assessed by NRC staff in the review of the GALILEO methodology, ANP-10323P-A, Revision 1 (Reference 19) and found acceptable.

Justification for ((

I] is based, in part, ((

J] discussed in ((

)) Framatome employs a robust method by which ((

I) In particular, Sections 5.3 and 5.4.2 of ANP-10323P-A. Revision 1. indicate rr I) Based on the discussions above and those presented in [(

I) NRC staff finds [(

J] reasonable and the treatment of this parameter to be acceptable [(

Framatome characterizes the manufacturina uncertainty ((

I) Justifications for [(

I) are the same as those discussed in ((

)) The NRC staff assessment of the justifications is likewise the same. Based on the discussions presented in [(

I) the NRC staff finds treatment of the present arameter to be acce table Framatome characterizes the manufacturina uncertaintv rr 11 Justifications for tr

)) are the same as those discussed in

((

)) The NRC staff assessment of the justifications is likewise the same.

Based on the discussions presented in [(

11 the NRC staff finds treatment of the resent arameter to be acce table Framatome characterizes the manufacturing uncertainty ((

I] Justifications for [(

)] are the same as those discussed in

((

I) The NRC staff assessment of the justifications is likewise the same.

Based on the discussions presented in ((

I] the NRC staff finds treatment of the resent arameter to be acce table Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

Phenomenon FRR-12 Manufacturing Uncertainties Parameter

((

))

((

j]

EM Variant I

Code

((

))

((

))

OFFICIAL USE ONLY - PROPRIETARY INFORMATION 113 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters Framatome accounts for the manufacturing uncertainty ([

JI Justification for this approach ((

([

I] was assessed by the NRC staff in the review of the GALILEO methodology described in ANP-10323P-A, Revision 1 (Reference 19), and found to

((

be acceptable.

((

I]

))

As discussed in ((

I] manufacturing uncertainties are [t J] Framatome employs a robust method by which ((

I] Based on the discussions above and those presented in ((

I] NRC staff finds ((

I] reasonable and the treatment Framatome characterizes the manufacturing uncertainty ((

I]

Justification for ([

J] was assessed by the NRC staff in the review of the GALILEO methodology, ANP-10323P-A, Revision 1 (Reference 19) and found acceptable.

Justification for ([

I] is based, in part, on ((*

process)) discussed in ((

I] Framatome employs a robust method by which ((

((

J] In particular, Section 5.3.3 of ANP-10323P-A, Revision 1, indicates [(

)) The NRC

((

staff find this reasonable; ((

J]

11

))

I] Therefore, any uncertainty ([

)) is expected to be the result of variation in the manufacturinQ process. ([

J] it is the NRC staffs assessment that ((

I]

will be the most challengina for the FOMs. Thus, based on the discussions above and those presented in ((

I] the NRC staff finds ((

J] reasonable and the treatment of this parameter to be acceptable ([

Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

EM Variant Phenomenon Parameter I

Code

[(

((

)]

II

((

])

OFFICIAL USE ONLY -PROPRIETARY INFORMATION 114 Uncer-Distri-Range/

tainty Staff Evaluation Approach bution Parameters Framatome characterizes the manufacturing uncertainty ((

((

11 Justifications for ((

])

I] are the same as those discussed in

((

]) The NRC staff assessment of the justifications is likewise the same.

Based on the discussions presented in ((

I) the NRC staff finds treatment of the resent arameter to be acce table Framatome characterizes the manufacturing uncertainty ((

[(

[I

((

11.Justifications for tr

))

])

I]

I) are the same as those discussed in ((

J] The NRC staff assessment of the justifications is likewise the same. Based on the discussions presented in [(

J] the NRC staff finds treatment of the present parameter to be acceptable [t Appendix IV for ANP-10339P SE OFFICIAL USE ONLY - PROPRIETARY INFORMATION

v t e Letter Sequence Approval
EPID:L-2018-TOP-0034, (Open)
Initiation Request, Request, Request Acceptance... Administration Meeting, Meeting, Meeting, Meeting Questions 30 August 2019 10 December 2019 26 March 2020 Answers Results Approval, Approval, Approval, Approval, Approval Other: ML20338A160, ML20338A165, ML21026A001, ML21055A810, ML21055A820, ML21110A147, ML21110A148, ML21159A143, ML21187A126, ML21204A101, ML21309A105, ML22109A121, ML22200A061, ML22259A001, ML24040A176, ML24040A179, ML24044A062, ML24044A063
MONTHYEAR2022-04-26 [Table View]

ML23299A240

Text

Navigation menu

Search