Category Archives: Handbook of Small Modular Nuclear Reactors

People’s Republic of China: CNP-300 design

The Shanghai Nuclear Engineering Research and Design Institute (SNERDI) designed the CNP-300 for the CNNC. The design is a down-sized traditional two — loop pressurized water reactor design. The core consists of 121 fuel assemblies with a 15 X 15 array of zircaloy clad fuel pins. Two vertically mounted external reactor coolant pumps circulate the primary coolant between the reactor […]

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Strategy for development of SMRs

Small reactors and the modular construction of reactors are not new. Historically, early reactors for commercial production of electricity were of small size, a consequence of the prudent engineering process of constructing plants starting at small ratings to gain the needed construction and operating experience necessary to move confidently to larger ratings. Now, after a half-century of experience, commercial civil […]

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Economic implications of SMR technologies

The economic characteristics of large water power reactors are known from years of construction and operating experience. The cost of sodium-cooled reactors based on deployments of demonstration units in the late 1900s has led to capital cost estimates of 110-125% that of water-cooled reactors (Waltar et al., 2012). Experience with gas-cooled, and certainly lead/lead-bismuth-cooled, reactors has not been sufficient to […]

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Evolution of SMRs

Commercial electric power began with small reactors of light-water-cooled design. Key examples are the Shippingport, 60 MWe reactor designed by the Westinghouse — operated Bettis Naval Atomic Power Laboratory, which started operation in 1958; the Yankee Rowe reactor, 185 MWe (Westinghouse) in 1960; the Indian Point One reactor, 275 MWe (B&W) in 1962 (all pressurized water reactor [PWR] designs); and […]

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