NS SAVANNAH FUEL DESIGN AND DEVELOPMENT PROGRAM. ANALYSIS OF PARTICULAR MECHANICAL CHARACTERISTICS OF THE CORE 2 FUEL ASSEMBLY

Design of the N.S. Savannah Core 2 fuel assembly is determined by analysis of mechanical characteristics. The limits of fuel assembly center spacer deflection are indicated by fuel rod length variation tests. The maximum impact loading of the center spacer lobes on the fuel container walls during pitch and roll conditions of the ship is determined by angle of inclination, velocity, and acceleration calculations. Minimum fuel rod bow clearances are established for rod-to-rod and rod-to-container conditions. Fuel rod clearance factors include dimensional tolerance buildup, design tolerance allowances, and bowing due to vibration, axial loads, gravitational loads, and differential temperature. Maximum fuel assembly center spacer lobe load and its effect on the fuel container walls is given for 30-degree roll and ship-on-its-side conditions. Analysis indicates the optimum position of center spacer corner lobes is in the corner fuel rod of the 117-rod array, resulting in a decrease in the container wall bending stress.

  • Supplemental Notes:
    • This document is available for review at the Department of Commerce Library, Main Commerce Building, Washington, D.C., under reference number GEAP-3375-Rev-1.
  • Corporate Authors:

    General Electric

    Marine Turbine & Gear Engineer, 1100 Western Ave
    Lynn, MA  USA  01910
  • Authors:
    • Cochran, R G
  • Publication Date: 1961-1-9

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 40 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00026422
  • Record Type: Publication
  • Source Agency: Maritime Administration
  • Report/Paper Numbers: GEAP-3375, Rev 1
  • Contract Numbers: AT(04-3)-189
  • Files: TRIS, USDOT
  • Created Date: Apr 13 1973 12:00AM