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The Mission of the Robotics and Remote Systems Division is to promote the development and application of immersive simulation, robotics, and remote systems for hazardous environments for the purpose of reducing hazardous exposure to individuals, reducing environmental hazards and reducing the cost of performing work.
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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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General Kenneth Nichols and the Manhattan Project
Nichols
The Oak Ridger has published the latest in a series of articles about General Kenneth D. Nichols, the Manhattan Project, and the 1954 Atomic Energy Act. The series has been produced by Nichols’ grandniece Barbara Rogers Scollin and Oak Ridge (Tenn.) city historian David Ray Smith. Gen. Nichols (1907–2000) was the district engineer for the Manhattan Engineer District during the Manhattan Project.
As Smith and Scollin explain, Nichols “had supervision of the research and development connected with, and the design, construction, and operation of, all plants required to produce plutonium-239 and uranium-235, including the construction of the towns of Oak Ridge, Tennessee, and Richland, Washington. The responsibility of his position was massive as he oversaw a workforce of both military and civilian personnel of approximately 125,000; his Oak Ridge office became the center of the wartime atomic energy’s activities.”
Mark S. Lanza (Framatome Inc.), Donald R. Todd (PNNL)
Proceedings | Advances in Thermal Hydraulics 2018 | Orlando, FL, November 11-15, 2018 | Pages 27-32
A general based charcoal filter model was added to the thermal hydraulics code GOTHIC Version 8.2. The model can be used to simulate unsteady iodide transport and adsorption within a charcoal filter that is used to filter vapor exiting the containment of a nuclear plant. The code accepts user inputs for adjusting filtering efficiency and performs calculations for the time and space dependent concentration of iodides in the vapor phase as well as the adsorbed phase within a charcoal filter.
The model includes advective and diffusive transport for iodides coupled with a sorption kinetics model, including first-order reversible physisorption and second-order irreversible chemisorption. Multiple independent gaseous compounds can be modeled simultaneously. The iodide compounds within these gasses are coupled by a decay-chain model and the combined concentration of the gaseous compounds is coupled to the chemisorption capacity of the filter.
Validation of the model to predict iodide transport and sorption within impregnated, activated charcoal was performed through experimental benchmarking. The validation demonstrates that the numerical solution correctly predicts measured data.