ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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Division Spotlight
Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
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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Latest News
BWXT will scout potential TRISO fuel production sites in Wyoming
BWX Technologies Inc. announced today that its Advanced Technologies subsidiary has signed a cooperation agreement with the state of Wyoming to evaluate locations and requirements for siting a potential new TRISO nuclear fuel fabrication facility in the state.
J. G. Refling, A. B. Reynolds, P. L. Garner, S. P. Rao
Nuclear Technology | Volume 33 | Number 3 | May 1977 | Pages 275-289
Technical Paper | Fuel | doi.org/10.13182/NT77-A31789
Articles are hosted by Taylor and Francis Online.
The effect of nonequilibrium mass transfer on two-phase oxide fuel expansion was studied. An analytical model was applied to fuel expansion tests being planned at Oak Ridge National Laboratory (ORNL) and to whole-core expansion of a uniform bubble in Clinch River Breeder Reactor geometry. Among the parameters varied in the study are the liquid droplet radius (Rp) and the condensation and evaporation coefficients (σ). It was found that allowance for nonequilibrium mass transfer increased the expansion times for the ORNL tests when the ratio of σ/Rp was <1000 m−1. Nonequilibrium mass transfer had little effect on the whole-core expansions until σ/Rp reached unrealistically low values of <10 m−1.
