NMP1L3167, General License 30-Day Cask Registration Notification and Thermal Performance Assessment

General License 30-Day Cask Registration Notification and Thermal Performance Assessment

ML17207A108
Person / Time
Site:	Nine Mile Point, 07201004
Issue date:	07/07/2017
From:	Moore D Exelon Generation Co
To:	Document Control Desk, NRC/NMSS/SFST
References
NMP1L3167
Download: ML17207A108 (2)

Text

p SS Exelon Generation NMP1L 3167 10 CFR 72.212(b)(2)

July 7, 2017 U. S. Nuclear Regulatory Commission Washington, DC 20555-0001 ATTN: Document Control Desk Director, Division of Spent Fuel Storage and Transportation Office of Nuclear Material Safety and Safeguards Nine Mile Point Nuclear Station, Units 1 and 2 Renewed Facility Operating License Nos. DPR-63 and NPF-69 Docket Nos. 50-220 and 50-41 O Nine Mile Point Nuclear Station Independent Spent Fuel Storage Installation General License Docket No. 72-1036 7 Z...-1 {) /; l/-

SUBJECT:

General License 30-day Cask Registration Notification and Thermal Performance Assessment Pursuant to the requirements of 10 CFR 72.212(b)(2), this letter provides the information to register the use of two approved spent fuel storage casks at the Nine Mile Point Nuclear Station (NMPNS) Independent Spent Fuel Storage Installation (ISFSI).

Licensee's Name: Nine Mile Point Nuclear Station, LLC Address: PO Box 63 Lycoming, NY 13093 Reactor License Numbers: DPR-63 and NPF-69 Docket Numbers: 50-220, 50-41 O and 72-1036 Person Responsible for Mr. Kenneth J. Kristensen Providing additional information: 315-349-2069 Cask Certificate Number: 1004 Certificate Amendment Number: 10 Cask Model Number: NUHOMS-61 BTH Cask Identification Numbers: NMP-61 BTH-1-A-2-035, loaded June 23, 2017 NMP-61BTH-1-A-2-036, loaded June 30, 2017 The Technical Specifications (TS) for Certificate of Compliance (CoC) No. 1004, Amendment No. 10, § 1.1. 7 "Special Requirements for First System in Place", requires the results of the temperature measurements of the first Dry Shielded Canister (DSC) placed in service be submitted to the NRC for evaluation and assessment. Additionally, this section of TS requires subsequent users of the system to report heat loads higher than the first user. The first user of the NU HOMS Coe No. 1004, Duke Energy, submitted the heat transfer characteristics for an 18.95 .kilowatt (kW) Dry Shielded Canister (DSC) in a letter to the NRC, from Duke Energy, "Cask Certificate of Compliance, Docket No.: 72-1004, 30-day Report for Higher Canister Heat Loading per General Requirement Section 1.1.7," dated August 8, 2007 (ML072340622). The ,J

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30 Day Cask Registration July 7, 2017 Page 2 first DSC loaded at NMPNS had a heat load of 7.30 kW, as reported in our letter dated October 17, 2012.

A summary of the thermal performance of DSCs 35 and 36 in place at the NMPNS ISFSI is submitted for your information.

Horizontal Storage Module (HSM) Model: NU HOMS Model 102 HSM Identification Number: 7DFS-HSM002G Cask: NMP-61 BTH-1-A-2-035 Calculated Heat Load: 8.433 kW Calculated b.T: 46 degrees F Actual b.T (Note 1): 35.9 degrees F HSM Identification Number: 7DFS-HSM002H Cask: NMP-61 BTH-1-A-2-036 Calculated Heat Load: 8.426 kW Calculated b.T: 44 degrees F Actual b.T (Note 1): 33.5 degrees F Note 1: The actual b.T represents the measured b.T obtained during equilibrium conditions.

Equilibrium conditions were achieved when the daily temperature change observed was less than 6 degrees F over three consecutive days.

This letter contains no NRG commitments. Should you have any questions regarding the information in this submittal, please contact Ken Kristensen at (315) 349-2069.

Sincerely, Dennis M. Moore Regulatory Assurance Manager, Nine Mile Point Nuclear Station Exelon Generation Company, LLC DMM/KJK cc: NRG Regional Administrator, Region I NRG Resident Inspector NRR Project Manager