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Filtering by: Creator Egeland%2C Dawn M. Remove constraint Creator: Egeland%2C Dawn M. Degree Field Mechanical Engineering Remove constraint Degree Field: Mechanical Engineering

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  • A study of compression loading of composite laminates

    Creator:
    Berbinau, Pierre J.
    Abstract:
    The compressive behavior of continuous fiber composites is not as well understood as their tensile behavior because research and industrial applications have until recently focused on the latter. Furthermore, most theoretical and experimental studies on the compression of composites have examined the case of unidirectional specimens with fibers along the...
    Resource Type:
    Dissertation
    Full Text:
    . Warnes, Dawn Peters, and Charles K. Sollitt for serving as members of my graduate committee. In

  • Modelling and flow measurement of shallow geothermal systems with downhole heat exchangers

    Creator:
    Miles, Charles Ray
    Abstract:
    The low temperature geothermal deposits in the Klamath Falls area are commonly used for heating buildings. The system often used to accomplish this consists of a heat exchanger that extends the full length of the casing within the well. This casing has slots cut in it to allow geothermal water...
    Resource Type:
    Masters Thesis
    Full Text:
    - UA m h 2C p w 1 + w 2 (2.9) After m is obtained from this equation, the other unknowns are

  • Geothermal well downhole heat exchanger design analysis

    Creator:
    Kreitlow, David Brian
    Abstract:
    The low temperature geothermal resource at Klamath Falls, Oregon is widely used for heating buildings. A common technique for using this resource consists of a heat exchanger down in the well inside a casing which extends the full length of the well. Slots are cut in the casing to allow...
    Resource Type:
    Masters Thesis
    Full Text:
    flow rate' where 2 X 2 L m - f A 0 f [B1 (1-e X1L )+B 2 (1-e ) + A w L]=0 (5) , , 2C 1 , L

  • Heat treatment characteristics of heavily doped epitaxial silicon materials

    Creator:
    Wijaranakula, Witawat
    Abstract:
    Nucleation and growth kinetics of oxygen precipitates and bulk defects in epitaxial silicon wafers were investigated. Low temperature nucleation heat treatments were applied to the well characterized epitaxial silicon wafers before and after the epitaxial deposition processing. Subsequently the wafers were heat treated at a high temperature. In the case...
    Resource Type:
    Dissertation
    Full Text:
    Heavily Doped Epitaxial Silicon Materials Redacted for privacy Abstract approved: Peter M. Burke

  • Development and validation of acoustic measurement techniques for void fraction in concentric annular geometries

    Creator:
    Tost, Brian C.
    Abstract:
    This work investigates the acoustic velocity of gas-liquid mixtures in vertical, co-current flow in a concentric annulus. Acoustic velocity shows promise as a detection parameter for the presence and amount of gas in a liquid flow because of its high sensitivity to gas void fraction in a gas-liquid mixture. However,...
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________ Brian M. Fronk ______________________________________________________ Paulo Waltrich

  • Power performance of planing boats with the effect of propeller selection and propeller guard design

    Creator:
    Ladd, Daniel M.
    Abstract:
    One of the unique problems associated with salmon gillnet fishing is of preventing the fouling of the boat's propeller in the net and associated fishing gear. Presently, the solution to this problem has been the addition of a basket type propeller guard which may produce a drag increase of 50...
    Resource Type:
    Masters Thesis
    Full Text:
    propeller selection and propeller guard design AN ABSTRACT OF THE THESIS OF DANIEL M. LADD for the degree

  • Stability and Liftoff of Non-premixed Large Hydrocarbon Flames in MILD Conditions

    Creator:
    Walters, Eric M.
    Abstract:
    The Moderate or Intense Low-oxygen Dilution (MILD) combustion regime has received interest from the industrial furnace and gas turbine engine industries due to attractive properties of reduced NO[subscript x] emissions and high thermal efficiency. MILD combustion is characterized by low oxygen concentrations (i.e. 3%-9% by volume) and high reactant temperatures....
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Eric M. Walters for the

  • From running birds to walking robots : optimization as a unifying framework for dynamic bipedal locomotion

    Creator:
    Hubicki, Christian M.
    Abstract:
    Bipedal locomotion is a complex phenomenon to understand and control, making it difficult for legged robots to achieve the speed, agility, efficiency, and robustness of their animal counterparts. This thesis argues for the use of numerical optimization to investigate and implement bipedal control as it applies to biology, dynamical models,...
    Resource Type:
    Dissertation
    Full Text:
    Unifying Framework for Dynamic Bipedal Locomotion AN ABSTRACT OF THE THESIS OF Christian M. Hubicki

  • Effect of Active Trailing Edge Motion Upon Airfoil Energy Harvester

    Creator:
    Strahl, Jordan D.
    Abstract:
    The application of a flapping foil with prescribed trailing edge motion to energy harvesting in a low reduced frequency (k = fc/U∞) regime was experimentally studied. The effects of the phase and amplitude of the applied trailing edge motion upon time-variant power extraction capability have been measured and are interpreted....
    Resource Type:
    Masters Thesis
    Full Text:
    instantaneous power output of the device. P (t) = FL(t)ḣ(t) + M(t)θ̇(t) (2.4) The total instantaneous power

  • Experimental studies of a partially defluidized bed with immersed heat exchange tubes

    Creator:
    Sitthiphong, Norkun
    Abstract:
    The object of this research study is to investigate and provide some fundamental information about bed slumping in a partially defluidized bed combustor. Due to the difficulty in making measurements and observations at high temperature, a dynamically similar cold phase fluidized bed was used to model the high temperature case....
    Resource Type:
    Dissertation
    Full Text:
    model the high temperature case. Experiments were conducted in a 0.305 m by 2.44 m cold fluidized bed