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Filtering by: Creator French, Rod A. Remove constraint Creator: French, Rod A. Committee Member Woods, Brian Remove constraint Committee Member: Woods, Brian Non-Academic Affiliation Oregon State University. Graduate School Remove constraint Non-Academic Affiliation: Oregon State University. Graduate School

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  • Feasibility Study of Using HANARO Fuel Rods in WWR-SM Reactor

    Creator:
    Peguero, Lara M.
    Abstract:
    Interest in increased fuel supply stability has driven an investigation into possible alternate fuel for use in the WWR-SM research reactor at the Institute of Nuclear Physics in Uzbekistan. The WWR-SM is a high-power, pool-type research reactor currently utilizing IRT-4M fuel made by a single Russian supplier. A candidate for...
    Resource Type:
    Masters Thesis
    Full Text:
    . The other assembly contains a modified HANARO fuel rod with a reduced fuel meat radius; this smaller

  • Feasibility study on a soluble boron-free small modular reactor

    Creator:
    Mart, Justin R.
    Abstract:
    The elimination of soluble boron creates several advantages for Small Modular Reactor (SMR) operation. Most of these advantages are realized through significant core simplification (removal of pipes, pumping, and purification systems), the removal of the corrosive effects of soluble boron, and from improved safety effects. However, removing soluble boron creates...
    Resource Type:
    Masters Thesis
    Full Text:
    advanced control rod algorithm is thus recognized as a viable strategy for boron-free operation for SMRs

  • Effects of a thin, flexible nozzle on droplet formation and impingement

    Creator:
    Hawke, Shane R.
    Abstract:
    The droplet formation process in the vicinity of the nozzle exit and the behavior of a spreading droplet during impingement on a smooth glass surface were studied. Two nozzle geometries were tested. The first case was a stiff stainless steel nozzle plate 0.787 mm thick. The second case was a...
    Resource Type:
    Masters Thesis
    Full Text:
    Engineering presented on December 12, 2006. Title: Effects of a Thin, Flexible Nozzle on Droplet

  • Binary stochastic media transport : a coupled mesh based method

    Creator:
    Barnett, Nathan A.
    Abstract:
    Transport in a binary stochastic media has been an area of interest for many applications over the past three decades. Many different methods have been attempted, most based on the Levermore-Pomraning coupled transport model. However, this method has never been able to correctly solve problems where a large amount of...
    Resource Type:
    Masters Thesis
    Full Text:
    Engineering Presented on July 25, 2008. Title: Binary Stochastic Media Transport: A Coupled Mesh Based

  • Predicting antineutrino source terms from a high temperature gas reactor

    Creator:
    Shaughnessy, Andra L.
    Abstract:
    Since the 1990s, researchers around the world have been creating antineutrino detectors for monitoring power reactors. These detectors have been deployed at light water reactors and are able to determine power levels and burn up throughout a fuel cycle. This technology could allow the IAEA to monitor LWRs remotely and...
    Resource Type:
    Masters Thesis
    Full Text:
    antineutrino energy spectrum emitted by a commercial pres- surized water reactor (PWR). The French are also

  • The Development of a Mechanistic Critical Heat Flux Correlation

    Creator:
    Luitjens, Jeffrey M.
    Abstract:
    A mechanistic based critical heat flux (CHF) correlation has been developed derived from a mass, momentum, and energy balance at a nucleation site for water. The trigger mechanism for the CHF condition is postulated to be related to the maximum boiling frequency on a heated surface. It is observed that...
    Resource Type:
    Dissertation
    Full Text:
    The Development of a Mechanistic Critical Heat Flux

  • Natural Convection Heat Transfer and Boundary Layer Transition for Vertical Heated Cylinders

    Creator:
    Goodrich, Sam S.
    Abstract:
    In recent years, the global nuclear industry has placed a greater emphasis on passively safe reactor designs. In particular, much attention and design work has been applied to engineered systems for passive cooling of nuclear fuel, whether it be loaded in a core or stored in spent fuel pools. The...
    Resource Type:
    Dissertation
    Full Text:
    heat loss from vertical, heated cylinders by natural convection as a function of rod diameter and

  • A study of opposing mixed convection in the GRTS and in downward pipe flows using the FLUENT CFD code

    Creator:
    Jackson, R. Brian
    Abstract:
    Downward flow opposing mixed convection conditions have been studied using the FLUENT CFD code. This work was comprised of two primary objectives. The first was to study core channel flow reversal susceptibility in the Gas Reactor Test Section (GRTS) at low flow conditions. The second objective was the development of...
    Resource Type:
    Masters Thesis
    Full Text:
    surround each heater rod in a hexagonal configuration for a total of 114 coolant channels in the GRTS

  • Molybdenum-99 production in the Oregon State TRIGA reactor : analysis of the reactor design using a new LEU target as fuel

    Creator:
    Hummel, Andrew J.
    Abstract:
    The most widely used and versatile medical radioisotope today is technetium-99m. Roughly 30 million people depend on this radioisotope for diagnostic procedures each year, and this demand is expected to grow. Although there are numerous ways of procuring this isotope, the most common and most practical, for reasons to be...
    Resource Type:
    Dissertation
    Full Text:
    : Molybdenum-99 Production in the Oregon State TRIGA Reactor: Analysis of the Reactor Design using a new LEU

  • Characterization of fission product transport in a gen. IV gas-cooled fast reactor plant utilizing vented fuel

    Creator:
    Deason, Wesley
    Abstract:
    Fission product transport in a Gen. IV Gas-Cooled Fast Reactor Plant utilizing vented fuel has been characterized using analytical and computational methods. The goal was to increase current understanding of fission product transport in helium-cooled GFRs using vented fuel and to provide a toolset for determining issues which may arise...
    Resource Type:
    Masters Thesis
    Full Text:
    contained 232 fuel pins, with the center region containing a guide tube for control rod insertion. Fuel