NS SAVANNAH, REFUELING ACCIDENT ANALYSIS

Damage investigation is based on the control rod or fuel transfer cask being dropped a distance of 36 feet, from a point 8 feet above the promenade deck of the N.S. Savannah, and striking the rotary manipulator on the reactor vessel flange. An analysis was made for a straight drop of either cask directly on the manipulator. Angular drop was investigated by considering the results of a straight drop analysis and an 11 degree angular drop analysis of the reactor head. The weights of the control rod transfer cask and the fuel transfer cask are 95,000 pounds and 75,000 pounds respectively. The magnitude of the kinetic energy of the falling body before impact was calculated. After adjusting the energy to account for the energy losses during impact, calculations were made to determine whether the rotary manipulator could absorb this remaining energy within the elastic limit of the material.

• Supplemental Notes:
  • This document is available for review at the Department of Commerce Library, Main Commerce Building, Washington, D.C., under reference number ESI-551-1-Suppl.-1.
• Corporate Authors:

  Ebasco Services Incorporated

  Two Rector Street
  New York, NY  United States 

  States Marine Lines, Incorporated

  ,    
• Publication Date: 1961-10-26

Media Info

• Features: Appendices; Figures; References;
• Pagination: 11 p.

Subject/Index Terms

• TRT Terms: Crashes; Drop tests; Loss and damage; Nuclear powered ships; Nuclear reactors; Refueling
• Uncontrolled Terms: Damage assessment
• Old TRIS Terms: Nuclear reactor accidents
• Subject Areas: Marine Transportation; Materials; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00026345
• Record Type: Publication
• Source Agency: Maritime Administration
• Report/Paper Numbers: ESI-55-1 Intrm Rpt
• Contract Numbers: MA-1889
• Files: TRIS, USDOT
• Created Date: Feb 14 1973 12:00AM