Naval Reactors History Database (nrhdb)
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1Title:  Reactor compartment package characteristics for several submarine and surface plants Add
 Summary:  This graphic shows reactor compartment package characteristics for some submarine and surface ship reactor plants. After decommmissioning, the reactor plant(s) in a submarine or ship are removed and packaged for storage at the Puget Sound Naval Shipyard. The compartments are then shipped to and stored at the Hanford Site in Washington state. The primary system components housed inside the reactor compartment include: the reactor pressure vessel, reactor shielding, main coolant pumps, pressurizer system, and steam generators. 
 Source:  http://www.fas.org/man/dod-101/sys/ship/eng/reactor.html 
 Reference:  United States Department of the Navy. Draft environmental assessment on the disposal of decommissioned, defueled naval reactor plants from USS Enterprise (CVN-65). U.S. Department of the Navy, 2011, pages 2-2 - 2-5. 
 Date:   unknown  
 Subject(s):  Nuclear engineering | Naval Reactors 
 Type:  Image 
 Format:  GIF 
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2Title:  Pressurized-water naval nuclear propulsion system Add
 Summary:  A simplified view of the major primary and secondary components in a naval nuclear propulsion plant. The fuel elements, containing Uranium-235 pellets, are enclosed in the reactor vessel. Pressurized water is used to moderate neutrons in the reactor core and serves as the heat transfer medium. Heated water moves to the steam generator, where the heat transfer takes place between the primary and secondary loops. The main coolant pump then returns the relatively cool water to the reactor core. The pressurizer enables primary loop pressure control through heaters (to increase pressure) and spray (to reduce pressure). The steam produced in the steam generator is used to drive turbines for propulsion and electrical power. 
 Source:  http://www.fas.org/man/dod-101/sys/ship/eng/reactor.html 
 Reference:  Hewlett, Richard G., and Francis Duncan. Nuclear Navy, 1946-1962. Chicago: University of Chicago Press, 1974, pages 131-135. 
 Date:   unknown  
 Subject(s):  Nuclear engineering | Naval Reactors 
 Type:  Image 
 Format:  JPEG 
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3Title:  Materials performance in operating PWR steam generators Add
 Summary:  This paper describes a challenge to the operation of pressurized water reactors on naval vessels: Steam generator U-tube leakage, primarily due to secondary chemistry problems. As described in the abstract, chemistry problems are centered in "those areas of the steam generators where limited coolant circulation and high heat flux have caused impurities to concentrate." Circulation problems (leading to cracking and corrosion) in Inconel U-tubes can be produced by "sludge deposits accumulated on the tube sheet or on tubing supports." In terms of prevention, the paper notes that "at the present time, all U.S. manufacturers of PWR's are recommending that their customers use an all-volatile treatment of the secondary coolant." It continues by providing water chemistry case studies on the three methods then used to maintain secondary chemistry: "A phosphate treatment, an all-volatile treatment, and a zero-solids treatment" (and the importance of moving from the first treatment method and attempting to reverse sludge problems in plants with extensive past use of phosphate treatments). Note: Some portions of the reproduced text are not legible. 
 Source:  http://www.osti.gov/bridge 
 Date:   1975 
 Subject(s):  Nuclear engineering | Naval Reactors 
 Type:  Text 
 Format:  PDF 
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4Title:  Corrosion and wear handbook Add
 Chapter title:  Introduction 
 Summary:  The introduction describes the handbook's purpose: "to accumulate and correlate the pertinent corrosion and wear information" that was the product of the first eight years in developing pressurized water reactor (PWR) technology for naval nuclear propulsion (3). The primary focus of the handbook is corrosion data related to the primary coolant system and steam generators in PWRs. The chapter provides a basic overview of PWR technology and emphasizes the importance of managing corrosion, noting that "only by closely controlling the amount of corrosion products in the primary system can this portion of the nuclear plant be made available for maintenance and repair within a reasonable period of time" after reactor shutdown (5). It includes summary information on stainless steel ("the major material of construction for water-cooled nuclear reactors") and carbon steel (5). 
 Source:  http://www.osti.gov/bridge 
 Date:   1957 
 Subject(s):  Nuclear engineering | Naval Reactors 
 Type:  Text 
 Format:  PDF 
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5Title:  Simplified view of S8G naval nuclear propulsion plant Add
 Summary:  A simplified view of the S8G reactor used to power the Ohio-class Trident ballistic missile submarines. The S8G plant's two turbines provide 60,000 shp (thermal power, shaft horsepower), approaching twice the power produced by the S6G plant used to drive the Los Angeles-class attack submarines. Admiral Hyman Rickover, head of Naval Reactors when the Trident submarine was designed in the early 1970s, supported the 60,000 shp plant, which contributed to the submarine's large size (560 feet long, with a submerged displacement of 18,700 tons). 
 Source:  http://www.robse.dk/pages/SSBN/OhioFami.asp 
 Reference:  Polmar, Norman, and Thomas B. Allen. Rickover: Controversy and Genius, a Biography. New York: Simon and Schuster, 1984, pages 564-578. 
 Date:   unknown  
 Subject(s):  S8G | Nuclear engineering | Naval Reactors 
 Type:  Image 
 Format:  GIF 
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6Title:  Shippingport reactor pressure vessel Add
 Summary:  The reactor pressure vessel for the Shippingport Atomic Power Station is unloaded from a rail car in the plant's fuel handling building. According to historians Richard Hewlett and Francis Duncan, the Shippingport plant was "the world's first full-scale electrical generating plant using nuclear energy." In part owing to Hyman Rickover's success in building the Mark I (S1W) plant in a joint Atomic Energy Commission-Navy project, the AEC approved a proposal that had Rickover and his organization manage the design and construction of the Shippingport plant. 
 Source:  http://www.loc.gov/pictures/item/PA1658/ 
 Reference:  Hewlett, Richard G., and Francis Duncan. Nuclear Navy, 1946-1962. Chicago: University of Chicago Press, 1974, pages 225-257. 
 Date:  10 October 1956 
 Subject(s):  Shippingport Atomic Power Station | Nuclear engineering | Naval Reactors 
 Type:  Image 
 Format:  JPEG 
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7Title:  Reactor core being lowered into pressure vessel Add
 Summary:  The reactor core is lowered into the pressure vessel at the Shippingport Atomic Power Station. The Shippingport plant was "the first large-scale central station nuclear power plant in the United States and the first plant of such size in the world operated solely to produce electrical power." Based upon the demonstrated success of Naval Reactors in the development of pressurized water reactor plants, starting with the Mark I/S1W plant, Admiral Hyman Rickover was assigned responsibility for the Shippingport project by the Atomic Energy Commission. Consistent with the practice used for S1W's design and construction, the AEC contracted with Westinghouse Electric for the Shippingport's plant, with Naval Reactors again serving in its oversight role for the design, development, and construction activities at the Shippingport station. 
 Source:  http://explorepahistory.com/displayimage.php?imgId=7290 
 Reference:  U.S. Atomic Energy Commission, Westinghouse Electric Corporation, Duquesne Light Company, and International Conference on the Peaceful Uses of Atomic Energy. The Shippingport Pressurized Water Reactor. Reading, Mass: Addison-Wesley Pub. Co, 1958, pages v-viii. 
 Date:   1957 
 Subject(s):  Shippingport Atomic Power Station | Nuclear engineering | Naval Reactors 
 Type:  Image 
 Format:  JPEG 
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8Title:  Main coolant pump, lower section, at the Shippingport Atomic Power Station Add
 Summary:  A reactor coolant pump at the Shippingport Atomic Power Station. The pump circulated water (which served as both coolant and moderator in the pressurized water reactor plant) through the core and the steam generator. One centrifugal pump was installed in each of the plant's four reactor coolant loops. Each pump had two operating speeds, to save electrical power when the plant was operated at below 50% reactor power. 
 Source:  http://www.loc.gov/pictures/item/PA1658/ 
 Reference:  U.S. Atomic Energy Commission, Westinghouse Electric Corporation, Duquesne Light Company, and International Conference on the Peaceful Uses of Atomic Energy. The Shippingport Pressurized Water Reactor. Reading, Mass: Addison-Wesley Pub. Co, 1958, pages 15 and 31-32. 
 Date:   unknown  
 Subject(s):  Shippingport Atomic Power Station | Nuclear engineering | Naval Reactors 
 Type:  Image 
 Format:  JPEG 
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9Title:  Lower section of plant pressurizer, Shippingport Atomic Power Station Add
 Summary:  The lower section of the pressurizer at the Shippingport Atomic Power Station. In a pressurized water reactor plant, the pressurizer is used to maintain satisfactory operating pressure. Primary pressure in increased through the operation of the removable heating elements visible on the right side of the pressurizer. Pressure is reduced through a spray nozzle at the top of the unit. The pressurizer is connected to the primary coolant system through the surge line (entering the bottom of the pressurizer) and the spray line (entering at the top). During normal power operations, steam is present above the pressurizer's water volume. 
 Source:  http://www.loc.gov/pictures/item/PA1658/ 
 Reference:  U.S. Atomic Energy Commission, Westinghouse Electric Corporation, Duquesne Light Company, and International Conference on the Peaceful Uses of Atomic Energy. The Shippingport Pressurized Water Reactor. Reading, Mass: Addison-Wesley Pub. Co, 1958, pages 235-238. 
 Date:   unknown  
 Subject(s):  Shippingport Atomic Power Station | Nuclear engineering | Naval Reactors 
 Type:  Image 
 Format:  JPEG 
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10Title:  Reactor vessel positioned on its side Add
 Summary:  The lower portion of the 264 ton reactor vessel, used for the Shippingport Atomic Power Station. The vessel is positioned on its side in Shippingport's fuel handling building prior to its installation in the plant. The reactor vessel housed the reactor's fuel assembly, control rods, and thermal shields. Pressurized water flows from each of the loops into the four inlet nozzles at the vessel's bottom; heated water flows to each of the loops from the four outlet nozzles at the top. 
 Source:  http://www.loc.gov/pictures/item/PA1658/ 
 Reference:  U.S. Atomic Energy Commission, Westinghouse Electric Corporation, Duquesne Light Company, and International Conference on the Peaceful Uses of Atomic Energy. The Shippingport Pressurized Water Reactor. Reading, Mass: Addison-Wesley Pub. Co, 1958, pages 63-69. 
 Date:  10 October 1956 
 Subject(s):  Shippingport Atomic Power Station | Nuclear engineering | Naval Reactors 
 Type:  Image 
 Format:  JPEG 
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