REPORT ON TESTS CARRIED OUT WITH A SHIP MODEL REPRESENTING CONTROL ROD DRIVE SYSTEM

The control rod drive system controls fission action by moving the control rods and the follower rods in the active core of the nuclear reactor in response to signals from other components of the reactor plant. The system comprises 21 mechanisms with associated power supplies and instrumentation. Each control rod has a mechanism capable of raising or lowering the control rod either independently or in pre-selected groups. The mechanism leadscrew is mechanically coupled to the control rod, and they move in and out of the reactor core as an integral unit in response to electrical signals for positioning and fail-safe requirements. This report presents design criteria and principles of operation for the control rod drive system of the N.S. Savannah. A detailed diagram of the general assembly is provided.

• Supplemental Notes:
  • This document is available for review at the Department of Commerce Library, Main Commerce Building, Washington, D.C., under reference number B-6-NSS.
• Corporate Authors:

  Borg-Warner Corporation

  Marvel-Schebler Products Division
  Decatur, IL  United States 
• Publication Date: 1961-6-26

Media Info

• Features: Figures; Tables;
• Pagination: 39 p.

Subject/Index Terms

• TRT Terms: Design; Fail safe systems; Nuclear powered ships; Nuclear reactor components; Nuclear reactors; Operations
• Old TRIS Terms: Control rod mechanisms; Nuclear reactor design; Nuclear reactor operation
• Subject Areas: Administration and Management; Design; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00026388
• Record Type: Publication
• Source Agency: Maritime Administration
• Report/Paper Numbers: Draft Rpt
• Contract Numbers: AT(30-1)-2478
• Files: TRIS, USDOT
• Created Date: Feb 6 1973 12:00AM