ML080840484

E-mail from Ronald L. Williams, Entergy, to N. Kalyanam, NRC, RAI Response to On-Going Processes to Support Next Generation Fuel

ML080840484
Person / Time
Site:	Waterford
Issue date:	03/24/2008
From:	Robert Williams Entergy Operations
To:	Kalyanam N NRC/NRR/ADRO/DORL/LPLIV
Kalyanam N, NRR/DORL/LP4, 415-1480
References
TAC MD6299
Download: ML080840484 (2)

Text

From:

"WILLIAMS, RONALD L" <RWILL15@entergy.com>

To:

"N. Kaly Kalyanam" <NXK@nrc.gov>

Date:

3/24/2008 2:54:40 PM

Subject:

RE: Ongoing Processes Kaly:

Specific question and response RAI 1 - Please provide a statement that: Entergy and its SBLOCA and LBLOCA analyses vendor have ongoing processes that assure that the input values of Waterford Unit 3 LOCA analyses conservatively bound the values of those parameters for the as operated Waterford Unit 3 plant.

Entergy Response:

Waterford 3 and its vendor, Westinghouse Electric Company LLC, continue to have ongoing processes, which assure that LOCA analysis input values bound the as-operated plant values for those parameters.

Entergy procedure NF-105, "Reload Process," Revision 3 (dated January 22, 2004) provides guidance with regard to development of cycle-specific groundrules. Specifically, subsections 4.4.8.4, 5.4.3.3, 5.4.3.4 and 5.4.3.5 of this procedure provide the applicable controls for the groundrules document. The groundrules document is one of the processes used to assure that LOCA analysis input values bound as-operated plant values. The "Waterford 3 Cycle 16 (number changes each fuel cycle)

Groundrules" document is developed early in the reload analysis process for each fuel cycle.Section III of this document presents the groundrules that contain safety analysis input parameter values to be used in the reload analyses. This section is to be reviewed for changes and for accuracy by Waterford 3 Entergy (PWR Fuels), and the fuel vendor personnel at the start of each reload as a minimum. As stated in that document, the groundrules serve as an interface between Waterford 3 and the fuel vendor, Westinghouse, for defining plant equipment parameters which reflect current (or expected) plant characteristics that are to be used in the safety analyses for the subsequent cycle. The information contained in the groundrules is reviewed for changes and for accuracy by Entergy and fuel vendor personnel each cycle. The groundrules information is independently verified to be applicable to Waterford 3 and is then available as inputs to the safety analyses. The information provided in the groundrules includes reference sources for the values given. These sources may include, but are not limited to, Waterford 3 operating procedures, Technical Specifications, equipment technical manuals, and Entergy calculations, in addition to fuel vendor calculations and analyses. These cross-references are reviewed by both Entergy and the fuel vendor ensure that analysis values, including those associated with the LOCA analyses, bound actual plant design and operating conditions.

Ron Williams Waterford 3 Licensing

CC:

"MURILLO, ROBERT J" RMURILL@entergy.com Mail Envelope Properties (47E7F8E4.A0F : 19 : 31247)

Subject:

RE: Ongoing Processes Creation Date 3/24/2008 2:54:13 PM From:

"WILLIAMS, RONALD L" <RWILL15@entergy.com>

Created By:

RWILL15@entergy.com Recipients nrc.gov OWGWPO04.HQGWDO01 NXK (N. Kaly Kalyanam) entergy.com RMURILL CC (ROBERT J MURILLO)

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