Naval Reactors History Database (nrhdb)
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1Title:  Reactor compartment packages at the Hanford Site's trench 94 Add
 Summary:  Defueled reactor compartments from decommissioned submarines are housed in enclosures in trench 94 at the Department of Energy's Hanford Site. The defueled compartments are removed from submarines and packaged at the Puget Sound Naval Shipyard, then shipped by barge and trailer to Hanford. 
 Date:   1994 
 Subject(s):  Hanford Site | Ship-Submarine Recycling Program (SRP) | Naval Reactors 
 Type:  Image 
 Format:  JPEG 
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2Title:  Naval spent nuclear fuel management Add
 Summary:  This document provides a planning and options overview of spent fuel handling for naval reactors plants as of 1994. Attachment A provides, as noted in the scope statement, "an evaluation of the radiological and non-radiological risks associated with the transportation of naval spent nuclear fuel and [irradiated] test specimens that originate from Navy and commercial shipyards, prototypes, and related Department of Energy laboratories" (A-1). These materials have historically been handled at the Idaho National Laboratory's Expended Core Facility. It continues by describing five alternatives for the handling and management of spent fuel generated from naval nuclear propulsion plants. This section also describes, in depth, the locations that send and receive shipments; spent nuclear fuel shipping containers; transport methods for containers; and, information on potential exposure from the transportation of spent fuel containers. On the latter point, information on accident analyses (along with exposure as the result of incident-free transport) is included. Attachment B provides in-depth information on spent fuel handling activities at the Expended Core Facility. Attachment C has information on the storage of spent fuels in water pools in comparison with dry containers. It notes that "water pools have historically been the method of choice for interim storage and fuel handling because: (1) water has a high thermal capacity for the removal of heat from the fuel, (2) the transparency of water facilitates the inspection and movement of the fuel, (3) water is an excellent gamma and neutron shield, (4) water is easy to purify and recycle, and (5) water provides a means to prevent release of radioactive material into the air" (C-1). Attachment D describes the storage of spent fuel at naval shipyards and prototypes, after its removal from naval reactors. Attachment E fleshes out the fuel handling and storage alternatives by "describ[ing] the options for establishing new or modified facilities that essentially duplicate the capabilities of the existing Expended Core Facility (ECF)" (E-1). Finally, attachment F provides "estimated environmental consequences, event probabilities, and risk (a product of probability and consequence) for both normal operations and postulated accident scenarios related to the storage and examination of naval spent nuclear fuel" (F-1). Current plans call for the recapitalization of the Expended Core Facility through the Spent Fuel Handling Recapitalization Project, through the construction of a new facility at the Idaho National Laboratory or by overhauling the existing facility. 
 Date:   1994 
 Subject(s):  Expended Core Facility | Naval Reactors 
 Type:  Text 
 Format:  PDF 
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