• The influence of mooring dynamics on the performance of self reacting point absorbers 

  Ortiz, Juan Pablo (2016-06-08)

  The design of a mooring system for a floating structure is a significant challenge; the choice of line structure and layout determine highly non-linear hydrodynamic behaviors that, in turn, influence the dynamics of the ...
• Nanomechanical sensors: analyzing effects of laser-nanowire interaction and electrodeposited clamps on resonance spectra 

  Weng, Fan (2016-06-02)

  This thesis presents work to help enable the transition of sensitive nanoscale instruments from research laboratory demonstration to societal use. It focuses on nanomechanical resonators made by field-directed assembly, ...
• Aero-elastic Energy Harvesting Device: Design and Analysis 

  Pirquet, Oliver Johann (2015-10-02)

  An energy harvesting device driven by aeroelastic vibration with self-sustained pitching and heaving using an induction based power take off mechanism has been designed and tested for performance under various operating ...
• Multi-objective Optimization of Plug-in Hybrid Electric Vehicle (PHEV) Powertrain Families considering Variable Drive Cycles and User Types over the Vehicle Lifecycle 

  Al Hanif, S. Ehtesham (2015-10-02)

  Plug-in Hybrid Electric vehicle (PHEV) technology has the potential to reduce operational costs, greenhouse gas (GHG) emissions, and gasoline consumption in the transportation market. However, the net benefits of using a ...
• Dead Volume Effects in Passive Regeneration: Experimental and Numerical Characterization 

  Liu, Yifeng (2015-09-17)

  The regenerator is the key component in magnetic cycles for refrigeration and heat pumping. It works as temporal thermal energy storage and separates two thermal reservoirs. Regenerators are typically made up of porous ...
• Investigation of calculated adiabatic temperature change of MnFeP1-xAsx alloys 

  Campbell, David Oliver (2015-04-30)

  Magnetic refrigeration is an alternative cooling technology to vapour compression. Due to the large operating space of magnetic refrigeration devices, modelling is critical to predict results, optimize device parameters ...
• Instrumentation, Control, and Testing of a Small Wind Turbine Test Rig 

  Khorsand Asgari, Iman (2015-04-29)

  As a cost-effective test method, a vehicle-based test rig can be utilized in small wind turbine experimental work to facilitate turbine performance tests under a range of controlled wind speeds, as well as to validate ...
• User-Constrained Algorithms for Aggregate Residential Demand Response Programs with Limited Feedback. 

  Gray, Adam Charles (2015-03-27)

  This thesis presents novel algorithms and a revised modeling framework to evaluate residential aggregate electrical demand response performance under scenarios with limited device-state feedback. These algorithms permit ...
• New Residential Thermostat for Transactive Systems 

  Chassin, David P. (2014-12-16)

  This thesis presents a residential thermostat that enables accurate aggregate load control systems for electricity demand response. The thermostat features a control strategy that can be modeled as a linear time-invariant ...
• Investigation of Hygro-Thermal Strain in Polymer Electrolyte Membranes Using Optical Coherence Elastography 

  Keller, Victor (2014-08-12)

  The work present in this thesis report introduces a novel non-destructive technique for experimentally measuring through thickness hygro-thermal strain of Nafion membranes though digital image correlation. An Optical ...
• Shear layer instabilities and flow-acoustic coupling in valves: application to power plant components and cardiovascular devices 

  Barannyk, Oleksandr (2014-05-07)

  In the first part of this dissertation, the phenomenon of self-sustained pressure os-cillations due to the flow past a circular, axisymmetric cavity, associated with inline gate valves, was investigated. In many engineering ...
• Fiber-optic sensor for detection of hydrogen peroxide in PEM fuel cells 

  Botero-Cadavid, Juan F. (2014-04-23)

  This dissertation presents chemical sensors that are based on an emerging optical fiber sensing technology for the determination of the presence and concentration of hydrogen peroxide (H2O2) at low concentrations. The ...
• Separation of CO2 using ultra-thin multi-layer polymeric membranes for compartmentalized fiber optic sensor applications 

  Davies, Benjamin (2014-03-20)

  Carbon dioxide sequestration is one of many mitigation tools available to help reduce carbon dioxide emissions while other disposal/repurposing methods are being investigated. Geologic sequestration is the most stable ...
• Design Principles and Performance Metrics for Magnetic Refrigerators Operating Near Room Temperature 

  Arnold, Daniel Sean Robert (2014-02-19)

  In the past decade, active magnetic regenerative (AMR) refrigeration technology has progressed towards commercial application. The number of prototype systems and test apparatuses has steadily increased thanks to the ...
• Using mobile distributed pyrolysis facilities to deliver a forest residue resource for bio-fuel production 

  Brown, Duncan (2013-12-10)

  Distributed mobile conversion facilities using either fast pyrolysis or torrefaction processes can be used to convert forest residues to more energy dense substances (bio-oil, bio-slurry or torrefied wood) that can be ...
• Tuning the passive structural response of an oscillating-foil propulsion mechanism for improved thrust generation and efficiency 

  Richards, Andrew James (2013-11-19)

  While most propulsion systems which drive aquatic and aerial vehicles today are based on rotating blades or foils, there has recently been renewed interest in the use of oscillating foils for this purpose, similar to the ...
• Design and Analysis of a Nested Halbach Permanent Magnet Magnetic Refrigerator 

  Tura, Armando (2013-08-19)

  A technology with the potential to create efficient and compact refrigeration devices is an active magnetic regenerative refrigerator (AMRR). AMRRs exploit the magnetocaloric effect displayed by magnetic materials whereby ...
• A Detailed Analysis of Guard-Heated Wall Shear Stress Sensors for Turbulent Flows 

  Ale Etrati Khosroshahi, Seyed Ali (2013-07-30)

  This thesis presents a detailed, two-dimensional analysis of the performance of multi-element guard-heated hot-film wall shear stress microsensors for turbulent flows. Previous studies of conventional, single-element sensors ...
• Mooring line modelling and design optimization of floating offshore wind turbines 

  Hall, Matthew Thomas Jair (2013-05-27)

  Floating offshore wind turbines have the potential to become a significant source of affordable renewable energy. However, their strong interactions with both wind- and wave-induced forces raise a number of technical ...
• Energy input, carbon intensity, and cost for ethanol produced from brown seaweed 

  Philippsen, Aaron (2013-01-15)

  Brown macroalgae or brown seaweed is a promising source of ethanol that may avoid the challenges of arable land use, water use, lignin content, and the food vs. fuel debate associated with first generation and cellulosic ...

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