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Division Spotlight
Nuclear Installations Safety
Devoted specifically to the safety of nuclear installations and the health and safety of the public, this division seeks a better understanding of the role of safety in the design, construction and operation of nuclear installation facilities. The division also promotes engineering and scientific technology advancement associated with the safety of such facilities.
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.
Yakov Ben-Haim
Nuclear Technology | Volume 47 | Number 1 | January 1980 | Pages 110-118
Technical Paper | Chemical Processing | doi.org/10.13182/NT80-A32415
Articles are hosted by Taylor and Francis Online.
Control of the release of radioactive iodine is an important task of the air filtration system in a nuclear installation. The filtration efficiency of an active charcoal filter for methyl iodide is shown to decrease due to the poisoning of the filter by secondary materials in the gas stream. A model is developed that appears to reproduce the decrease in filtration efficiency. Lack of detailed information on the poison-filter interaction prevents definitive confirmation of the model The model facilitates the choice of the optimum values of certain micro-structural and operational parameters of the filter, to reduce the effect of secondary poisons on the filter and thereby to lengthen the usable life of the filter. The microstructural properties addressed by the model are catalyst pellet size, porosity, surface area per gram, and pore radius. The operational parameters of the filter are the gas transit time and the gas diffusivity in the catalyst pores as controlled by the gas temperature.