Naval Reactors History Database (nrhdb)
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1Title:  The Shippingport Pressurized Water Reactor and Light-Water Breeder Reactor Add
 Summary:  This summary and outline, written by J.C. Clayton of the Bettis Atomic Power Laboratory, describes the history of the cores used at the Shippingport Atomic Power Station. It notes that the design and construction of the Shippingport plant, the first commercial power reactor in the United States, was led by the Naval Reactors Branch, reporting to the Atomic Energy Commission. PWR core 1 used a seed-blanket arrangement, with "highly-enriched uranium alloy fuel assemblies" constituting the seed, and "natural uranium dioxide fuel rods" the blanket (3). For PWR core 1, Clayton notes that both regions were essential in maintaining a chain reaction. PWR core 2 employed several advances in reactor technology in order to increase power density and core lifetime. Unlike PWR core 1, the seed region of PWR 2 was capable of a self-sustaining reaction. Both PWR cores 1 and 2 employed Hafnium control rods in the seed region only. Clayton then summarizes the operation of the Shippingport reactor using the Light-Water Breeder Reactor (LWBR) core, its final core prior to decommissioning. He notes that "the Shippingport LWBR demonstrated the feasibility of using the thorium-uranium fuel cycle in a light-water environment" (6). Given the fact that the LWBR was used in the Shippingport reactor vessel and plant, Clayton asserts that the LWBR design "is a viable alternative as a PWR replacement in future generations of nuclear reactors" (6). 
 Date:   1993 
 Subject(s):  Light Water Breeder Reactor (LWBR) | Shippingport Atomic Power Station | Nuclear engineering | Naval Reactors 
 Type:  Text 
 Format:  PDF 
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