ML23107A052

6 to Updated Final Safety Analysis Report, Chapter 3, Tables

ML23107A052
Person / Time
Site:	Palisades
Issue date:	03/31/2023
From:	Holtec Decommissioning International
To:	Office of Nuclear Reactor Regulation
Shared Package
ML23107A065	List: ML23107A012 ML23107A013 ML23107A014 ML23107A015 ML23107A016 ML23107A017 ML23107A018 ML23107A019 ML23107A020 ML23107A021 ML23107A022 ML23107A023 ML23107A024 ML23107A025 ML23107A026 ML23107A027 ML23107A028 ML23107A029 ML23107A030 ML23107A031 ML23107A032 ML23107A033 ML23107A034 ML23107A035 ML23107A036 ML23107A037 ML23107A038 ML23107A039 ML23107A040 ML23107A041 ML23107A042 ML23107A043 ML23107A045 ML23107A046 ML23107A047 ML23107A048 ML23107A049 ML23107A050 ML23107A051 ML23107A052 ML23107A053 ML23107A054 ML23107A055 ML23107A056 ML23107A057 ML23107A058 ML23107A059 ML23107A060 ML23107A061 ML23107A062 ... further results
References
HDI PNP 2023-002
Download: ML23107A052 (2)

Text

DSAR CHAPTER 3 - REACTOR TABLE 3-2 Revision 36 Page 1 of 2

FUEL BUNDLE COMPONENT DESCRIPTION

COMPONENT MATERIAL AND DIMENSIONAL OTHER DETAILS FABRICATION CHARACTERISTICS Assembly 15 x 15 Length 149 inches, distance 216 fuel rods (typical), 8 guide between tie plates 140.9 to bars, 1 instrumentation tube, 141.7 inches, rod pitch assembly pitch 8.355 to 0.550 inch 8.615 inches, 10 grid spacers, 9 within active fuel zone Grid spacers Zr-4 welded eggcrate Outside dimension 8.195 inches Batch R and S: Inconel grids with Inconel spring square mechanically fastened at strips. High strength bottom locations only design Batch T and beyond: All Zr-4 welded eggcrate zircaloy HTP spacers welded with Zircaloy integrated to the guide bars flow channels. High strength and high thermal performance design (HTP)

Lower tie plate Stainless steel casting Outside dimension 8.250 inches Reload R and beyond will have square, 2.4 to 3.2 inches high FUELGUARDTM insert in lower tie plate Alignment pins Inconel X-750 Le ngth 2.50 inches, projecting length 1.47 inches Upper tie plate Stainless steel casting Outside dimension 8.16 inches square, 3.29 inches high Guide bars Zr-4 annealed bar Total length 140.9 to 141.7 inches, width.398 inch, maximum depth.450 inch Instrument tube Zr-4 tube, cold worked Length 142.0 to 142.7 inches, Batch Y and beyond use M5 assembly and stress relieved or OD 0.417 inch, ID 0.367 inch M5 tube, fully recrystallized Fuel rod Total length 139.4 to Rods pressurized to value that 140.2 inches, active fuel length prevent collapse 131.80, plenum length 6.7 inches Beginning with Reload P for gadolinia rods and Reload Q Batch R through W - active fuel for UO2 fuel, "axial blankets" length 132.6 inches and plenum are used. These "blankets" length 6.83 inches are lower enriched uranium at the ends of the rods.

Batch X and beyond - active fuel length 132.6 inches and plenum length 6.79 inches

Batch W and beyond - long upper end cap rods active fuel length 122.0 inches Fuel Pellets Sintered UO2 or UO2-Diameter 0.35 inch Gd2O3 pellets Batch R and beyond 0.36 inch DSAR CHAPTER 3 - REACTOR TABLE 3-2 Revision 36 Page 2 of 2

FUEL BUNDLE COMPONENT DESCRIPTION

COMPONENT MATERIAL AND DIMENSIONAL OTHER DETAILS FABRICATION CHARACTERISTICS Cladding for fuel, Zr-4, tube cold worked OD Batch Y and beyond use M5 Inert Rods and stress relieved or 0.417 inch, ID 0.358 inch, wall M5 tube, fully thickness (min.) 0.0275 inch recrystallized Batch R and beyond OD 0.417 inch, ID 0.367 inch, wall thickness (min.) 0.0225 inch Poison Gadolinia None Mixed with UO 2 Clearance Reload R and beyond 1.48 inches Consistent with projected available for fuel assemblies can be batch burnup axial growth burnt to 58,900 MWD/MTU average assembly exposure without UTP Shield Rod SAN Stainless Steel OD 0.417 inch Total Length Solid SS rods may also be Assemblies Type 304 139.7 to 140.7 inches used as inert rods for fuel repairs Inert Rod (for Zr-2, Zr-4, M5 or Total Length 139.6 inches, Rod pressurized to a value that Fuel Repair) stainless steel may be OD 0.417 inch Plenum Length prevents collapse used as rod filler 6.7 inches