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Filtering by: Creator Duringer, J. M. Remove constraint Creator: Duringer, J. M. Committee Member Marcum, Wade Remove constraint Committee Member: Marcum, Wade

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  • Investigation of In-tube Non-equilibrium Condensation of Low Global Warming Potential Refrigerants

    Creator:
    Jacob, Tabeel A.
    Abstract:
    This work investigates the in-tube condensation of low global warming potential (GWP) zeotropic refrigerant mixtures R448A, R450A, R452A, R454B and R454C. These refrigerants have been proposed for a wide range of commercial heating, ventilation, air-conditioning applications, but their heat and momentum transport phenomenon were not well understood. Thus, in this...
    Resource Type:
    Dissertation
    Full Text:
    approved: Brian M. Fronk This work investigates the in-tube condensation of low global warming potential

  • Fracture toughness of void-site-filled skutterudites

    Creator:
    Eilertsen, James S.
    Abstract:
    Thermoelectric materials are playing an increasingly significant role in the global effort to develop sustainable energy technologies. Consequently, the demand for materials with greater thermoelectric efficiency has stimulated the development of state-of-the-art interstitially doped skutterudite-based materials. However, since intermetallics are often embrittled by interstitial substitution, optimal skutterudite-based device design, manufacture,...
    Resource Type:
    Masters Thesis
    Full Text:
    , B. Gibbons, J. Kruzic, E. Minot, M. Subramanian, J. Tate, W. Warnes, and P. Watson; the Kruzic

  • Advancing the understanding of bulk metallic glasses as structural materials through exploration of mechanical properties

    Creator:
    Naleway, Steven E.
    Abstract:
    Bulk metallic glasses (BMGs) offer a great deal of potential through their near-theoretical strength, potentially high toughness and unique forming and molding traits. However, there are still a number of outstanding issues that bar their widespread use. This thesis describes the investigation of three research questions each designed to further...
    Resource Type:
    Masters Thesis
    Full Text:
    : ________________________________________________________________________ Jamie J. Kruzic Bulk metallic glasses (BMGs) offer a great deal of potential through their

  • Utilization of Renewable Energy via Thermochemistry

    Creator:
    Lei, Fuqiong
    Abstract:
    Utilization of solar energy or wind energy for electricity production is inherently challenging due to the diurnal and seasonal variations and normal intermittency. Effective, high efficiency storage methods need to be developed for further advancing renewable energy utilization. Endothermic chemical processing and thermochemical energy storage can be both employed as...
    Resource Type:
    Dissertation
    Full Text:
    -9245. 6. Weinstein, L. A.; Loomis, J.; Bhatia, B.; Bierman, D. M.; Wang, E. N.; Chen, G

  • A Permanent-Magnet Linear Generator Wave Energy Converter for Low Power Ocean Sensors

    Creator:
    Miles, Lillian F.
    Abstract:
    Renewable energy sources are becoming increasingly important due to their low environmental impact and limitless nature. This thesis explores the design of a 250 mW permanent magnet linear generator wave energy converter to power ocean sensors. While many wave energy converters exist, this is a unique application because the wave...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: _____________________________________________________________________ James M

  • Enabling Feasibility Assessment of Solar Thermal Energy Systems for Industrial Process Heating Applications

    Creator:
    Karki, Saroj
    Abstract:
    Existing studies on industrial heat demand have shown that more than 50% of the industrial process heat demand is in the range of low (<60 °C), medium (60-150 °C), and medium-high (<250 °C) temperatures. Most of the manufacturing industries across the world depend on combustion of carbon-based fossil fuels, either...
    Resource Type:
    Masters Thesis
    Full Text:
    Karl R. Haapala Brian M. Fronk Existing studies on industrial

  • Validation of radiographic automatic exposure control device testing in the era of filmless radiography : and new variables associated with testing

    Creator:
    Allman, Robert M.
    Abstract:
    The exposure needed for a clinically useful image requires much less precision when using digital radiography (DR) than when using screen/film (SF) radiography. The Automatic Exposure Control (AEC) device was developed for ensuring accurate and precise exposures with SF technology. This thesis evaluates the importance of the AEC device in...
    Resource Type:
    Masters Thesis
    Full Text:
    ---------------------------------------------------------------------------------------------------------------- AN ABSTRACT OF THE THESIS OF Robert M. Allman for the degree of Master of Science in Radiation

  • Dynamical System Scaling of Fuel Performance During Reactivity Insertion Accidents

    Creator:
    Dueñas, Alexander M.
    Abstract:
    Fuel qualification timelines for new fuel technology under ideal conditions can take between 20-25 years to be fully qualified from initial concept to deployment as full fuel assemblies. To reduce the timeline and costs, new separate-effects test and integral-effects test experiments, advanced instrumentation, and advanced modeling and simulation tools are...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Alexander M

  • A multiagent approach to identifying innovation in design components

    Creator:
    Rebhuhn, Carrie M.
    Abstract:
    Innovation is a key element for a product to achieve market success, but identifying it within product or even defining the term is a difficult task. Identifying innovation has been approached in many different ways. Experts in design engineering may identify innovative designs based on an analysis of a product's...
    Resource Type:
    Masters Thesis
    Full Text:
    and Rj is the number of times the component solution for function j is seen in the set. This novelty

  • High Pressure Condensation in an SMR Containment

    Creator:
    Mullin, Etienne M.
    Abstract:
    The Oregon State University Multi-Application Small Light Water Reactor test facility is employed in a series tests to evaluate condensation heat transfer in small, high pressure containment vessels characteristic of small modular reactor designs under development. This integral system test facility was constructed to demonstrate the feasibility of a pioneering...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Etienne M. Mullin for the degree of Master of Science in Nuclear