ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Materials Science & Technology
The objectives of MSTD are: promote the advancement of materials science in Nuclear Science Technology; support the multidisciplines which constitute it; encourage research by providing a forum for the presentation, exchange, and documentation of relevant information; promote the interaction and communication among its members; and recognize and reward its members for significant contributions to the field of materials science in nuclear technology.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Nuclear Technology
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Latest News
Virginia utility considers SMRs
Dominion Energy Virginia has issued a request for proposals from leading nuclear companies to study the feasibility of putting a small modular reactor at its North Anna nuclear power plant.
While the utility says it is not a commitment to build an SMR at the site, the RFP is “an important first step in evaluating the technology and the North Anna site to support Dominion Energy customers’ future energy needs consistent with the company’s most recent Integrated Resource Plan.”
James P. Adams, Eric S. Peterson
Nuclear Technology | Volume 102 | Number 3 | June 1993 | Pages 304-312
Technical Paper | Nuclear Reactor Safety | doi.org/10.13182/NT93-A17029
Articles are hosted by Taylor and Francis Online.
The iodine concentration in the steam generator secondary vapor must be determined in order to estimate the environmental consequences (i.e., iodine source term to the environment) due to a steam generator tube rupture (SGTR). Experimental evidence indicates that this concentration is sensitive to the liquid-phase pH. A thermodynamic-based calculational approach was used to model the pH during a design-basis SGTR. The EQUILIBRIUM code within the Facility for Analysis of Chemical Thermodynamics was assessed for calculation of pH by comparison with measured pH’s in operating pressurized water reactors (PWRs). The pH was calculated for ten generic PWR designs (one Babcock & Wilcox, three Combustion Engineering, and six Westinghouse). The calculated pH was shown to be relatively insensitive to PWR design. The pH for all designs equilibrated to a value of ∼6.5.