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  • Experimental Investigation of Near-Critical Carbon Dioxide in Microchannels for High Flux Cooling Applications

    Creator:
    Travers, Kristen
    Abstract:
    With the continued decrease in size and subsequent increase in power of computer processors, thermal management in electronics is becoming more important than ever before. The chip heat densities are reaching new peaks (> 100 W cm-2) that current cooling methods are not able to keep up with. However, some...
    Resource Type:
    Honors College Thesis
    Full Text:
    _____________________________________________________________________ Deborah V. Pence, Committee Member, representing Mechanical Engineering

  • Mechanically Enhanced and Optically Compatible Hydrogels for Particle Image Velocimetry in Porous Flow

    Creator:
    Cornwell-Arquitt, Luke
    Abstract:
    Hydrogels have been attractive for use as a medium in porous flow studies, but have always been limited in this role because of their poor mechanical properties. This project analyzes and tests two recently developed hydrogels, poly(methacrylamide-co-methacrylic acid) (PMM), and a heat-treated long chain PVA hydrogel. Particle image velocimetry (PIV)...
    Resource Type:
    Honors College Thesis
    Full Text:
    _____________________________________________________________________ Deborah Pence, Committee Member, representing Mechanical, Industrial, and Manufacturing

  • Phase Separation in Microscale Convective Boiling

    Creator:
    Lewis, Kevin Terrence
    Abstract:
    It is hypothesized that extracting the vapor from two-phase flow in a microchannel will result in a lowered pressure drop required to drive the flow. The goal of this thesis is to construct an experimental device that will test this hypothesis by comparing a number of phase separating test conditions...
    Resource Type:
    Honors College Thesis
    Full Text:
    thank my project mentors Dr. James Liburdy and Dr. Deborah Pence, both of whom spent a great deal of

  • Testing and design procedures for electric propellant pumps for suborbital bi-propellant rockets

    Creator:
    Verna-Ketel, Dominic
    Abstract:
    An electrically driven propellant pump (HALE E-Pump) was analysed and tested to determine its viability for use in a bi-propellant launch vehicle for the High-Altitude Liquid Engine (HALE) student rocket team at Oregon State University (OSU). The pump, manufactured in 2022 by students in OSU machine shops, was hydrostatically tested...
    Resource Type:
    Honors College Thesis
    Full Text:
    , Industrial and Manufacturing Engineering Deborah Pence, Committee Member, representing Mechanical

  • Fluid dynamic analysis of fluid flow in a raceway tank for cultivation of macrophytic red algae, Gracilaria vermiculophylla

    Creator:
    Willis, Myles
    Abstract:
    As new cost-effective cultivation methods are needed for macrophytic red algae, this experiment expands upon a previously studied land-based approach. The experiment aimed to determine how the fluid dynamics of a previously researched land-based method affected the growth of the macrophytic red alga, Gracilaria Vermiculophylla. A clonal culture of G....
    Resource Type:
    Honors College Thesis
    Full Text:
    _____________________________________________________________________ Deborah Pence, Committee Member, representing Mechanical, Industrial, and Manufacturing

  • Significance of High-Pressure-Torsion Processing on an Aluminum-Lithium Aerospace Alloy

    Creator:
    Keller, Marina
    Abstract:
    Aluminum alloys are popular in aerospace and automotive industries because of their relatively high strength-to-weight ratio. The study of enhancing aluminum’s mechanical properties through grain refinement is especially important. One such technique is High-Pressure Torsion processing (HPT), which leads to significant grain size refinement and enhances mechanical properties like ductility...
    Resource Type:
    Honors College Thesis
    Full Text:
    _____________________________________________________________________ Deborah Pence, Committee Member, representing Mechanical Engineering

  • Thermographic Testing Applied to Fiber Reinforced Polymers

    Creator:
    Jolibois, Michael
    Abstract:
    Non-destructive testing is a methodology to inspect production and operational parts for potential flaws, defects, or damages. The present work is based on pulsed wave thermography, a thermal imaging method based on heat conduction to identify surface and subsurface defects potentially present in a component. Pulsed wave thermography applies a...
    Resource Type:
    Honors College Thesis
    Full Text:
    _____________________________________________________________________ Deborah Pence, Committee Member, representing Oregon State University MIME

  • Development of Two-Color Laser Induced Fluorescence Fluid Temperature Imaging for Free Convection Heat Transfer Applications

    Creator:
    McAfee, Rachel C.
    Abstract:
    The development of a continuous and reliable cooling method for computer chips is an evolving subject requiring continuous research in both computer science and thermal management. Two-dye laser induced fluorescence (LIF) provides a minimally invasive way to investigate electronics cooling fluid behavior. Dielectric fluids are of particular interest as they...
    Resource Type:
    Honors College Thesis
    Full Text:
    _____________________________________________________________________ Deborah Pence, Committee Member, representing Mechanical Engineering