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The Young Members Group works to encourage and enable all young professional members to be actively involved in the efforts and endeavors of the Society at all levels (Professional Divisions, ANS Governance, Local Sections, etc.) as they transition from the role of a student to the role of a professional. It sponsors non-technical workshops and meetings that provide professional development and networking opportunities for young professionals, collaborates with other Divisions and Groups in developing technical and non-technical content for topical and national meetings, encourages its members to participate in the activities of the Groups and Divisions that are closely related to their professional interests as well as in their local sections, introduces young members to the rules and governance structure of the Society, and nominates young professionals for awards and leadership opportunities available to members.
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Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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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.
C. S. MacDougall, C. K. Bayne, R. B. Roberson
Nuclear Technology | Volume 58 | Number 1 | July 1982 | Pages 47-52
Technical Paper | Chemicl Processing | doi.org/10.13182/NT82-A32956
Articles are hosted by Taylor and Francis Online.
The design of vessels and off-gas systems for denitrating acidic radioactive process solutions by reacting nitric acid with sugar requires a fairly accurate determination of the rate of the controlling step. Therefore, the reaction of sugar with concentrated nitric acid was closely examined at temperatures of 100 and 110°C and in the presence of low levels of iron [0 to 0.2 M Fe(III)]. The sugar-acid reaction does not exhibit a single mechanism. However, the overall reaction can be approximated by the following expression:.The rate coefficient, K(t), as a function of time [K(t) = K0 + K1t] mathematically delineates the change from the rapid initial reaction at high acid concentrations to the slower digestion reaction at low acid concentrations. At the high acid concentrations (>6 M), the rate coefficient approaches K0. The relationship of the rate constant, K0, with Fe(III) at 100°C is K = 0.60 × [0−4 + 5.60 × 10−4[Fe(III)]. Efficiencies of the sugar destruction by nitric acid ranged from 2.56 to 2.93 mol of acid consumed per mole of carbon added. Product off-gases were examined throughout the reaction. Release of CO was fairly constant throughout the reaction, but amounts of CO2 increased as the nitric acid began to attack the terminal carboxylic acids produced from the consumption of sucrose. Voluminous quantities of NO2 were released at the beginning of the reaction, but larger relative concentrations of NO were observed toward the end.