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
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
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.
R. L. R. Lefevre, M. S. T. Price
Nuclear Technology | Volume 35 | Number 2 | September 1977 | Pages 263-278
Pyrocarbon | Coated Particle Fuel / Fuel | doi.org/10.13182/NT77-A31886
Articles are hosted by Taylor and Francis Online.
The coating of nuclear fuel particles with pyrolytic carbon derived from a hydrocarbon gas is a complex process, and, until recently, although adequate behavior in service has been demonstrated, the methods used to obtain a particular product have been largely empirical. A concerted effort was made to close the loop: manufacture-quality-performance. A model of the decomposition process postulated the formation and growth of nuclei into agglomerates that are captured by the fuel particles. The evolution of the model involved many simplifications, and to reduce the number of variables involved, standardized operating conditions were assumed. The most important of these for comparative studies is the concept of operating at a constant reaction zone temperature. When this is done, many of the anomalies previously ascribed to the effect of different source gases are removed. An experimental program has been carried out to test the model, and excellent correlations have been found between the predicted and actual size of agglomerates that can be observed in the coating structure. The agglomerate size has also been correlated with coating failure. With the aid of the model, similar deposits have been made from quite different source gases. A survey of the failure modes of coated particle fuel acts as an aid to deducing, in the light of the deposition model, the method of achieving a satisfactory quality assurance program for the structure of coatings on nuclear fuel particles.