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Filtering by: Creator Shen, L. Remove constraint Creator: Shen, L. Academic Affiliation Mechanical, Industrial, and Manufacturing Engineering Remove constraint Academic Affiliation: Mechanical, Industrial, and Manufacturing Engineering

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  • Hydrodynamics of droplet impingement on heated surfaces : effects of nanofluid and nano-structured surface

    Creator:
    Shen, Jian
    Abstract:
    This study investigates the hydrodynamic characteristics of droplet impinging on heated surfaces using High Speed High Resolution (HSHR) imaging and evaluates the effect of surface temperature and using water and a nanofluid on a polished and a nano-structured surface. Three types of surfaces are used in the study: polished silicon,...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Jian Shen for the degree

  • Tracking of Melt Pool Motion Using Numerical Analysis of Laser Powder Bed Fusion

    Creator:
    Cox, Bryce
    Abstract:
    Laser Powder Bed Fusion (LPBF) is a process commonly used to create additively manufactured metal parts. The flexibility and complexity allowed by the LPBF process provides opportunity for significant advancement in multiple industries as parts can be customized in shape and function for specific needs. These benefits can be compounded...
    Resource Type:
    Dissertation
    Full Text:
    . Abstract approved: ______________________________________________________ Joshua L. Gess Laser

  • An investigation of Chinese quality circle effectiveness : critical success factors and outcomes

    Creator:
    Li, Jing
    Abstract:
    This research studied the relationship between three input variables and outcomes related to the use of quality circles (QCC) in a Chinese manufacturing company. After a thorough review of the literature, three managerial input variables were identified, including goal clarity, goal difficulty, and management support. Five outcomes were measured, including...
    Resource Type:
    Masters Thesis
    Full Text:
    approved: _____________________________________________________________________ Toni L. Doolen

  • Fluidized Bed Reactor Engines

    Creator:
    Lavrich, Zoe A.
    Abstract:
    Repurposing internal combustion engines as petrochemical reactors (i.e., Reactor engines) could offer a smaller, scalable alternative to traditional full scale chemical processing facilities. For many chemical processes, incorporating catalyst particles in fluidized beds is expected to result in superior performance over both monoliths and packed beds. Conversion of ethane into...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ Christopher L. Hagen Repurposing internal combustion engines as petrochemical reactors

  • Effects of Residual CO2 and N2 on Detonation Velocity and Detonation Limits

    Creator:
    Glad, Harley R.
    Abstract:
    Detonation combustion has gained interest throughout the years because of its potential to increase thermodynamic cycle efficiency when compared to deflagration based cycles. The expected benefits result from a pressure gain during the combustion process instead of a pressure drop, as observed for deflagrations. The implementation of detonations can be...
    Resource Type:
    Masters Thesis
    Full Text:
    . Abstract approved: _____________________________________________________________________ David L

  • Offshore renewable energy : an exploration of techno-economic feasibility and reliability through a computational optimization perspective

    Creator:
    Clark, Caitlyn E.
    Abstract:
    Offshore renewable energy (ORE) has the potential to be a significant source of future global electricity production, reduce carbon emissions, decrease dependence on energy importation, and stimulate economic growth in coastal and remote areas. The availability and abundance of ORE, paired with growing coastal population centers, position offshore wind, wave,...
    Resource Type:
    Masters Thesis
    Full Text:
    approved: __________________________________________________ Bryony L. DuPont Offshore renewable

  • Development and Application of a Reduced Chemical Kinetics Model for Low-Speed Pre-Ignition Investigation

    Creator:
    Tran, Khang NV.
    Abstract:
    Gasoline direct injection engines, with downsized boosted technology, present a promising option for enhancing power density and reducing fuel consumption for next-generation engine designs to meet stringent fuel economy and emission standards. However, these developments in the low-speed and high-load operating regime are challenged by the occurrence of a new...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: Christopher L. Hagen Kyle E. Niemeyer Gasoline direct injection engines, with downsized

  • Mechanical Design for Robot Locomotion

    Creator:
    Abate, Andrew M.
    Abstract:
    Robotic limbs have been shown to enable mobility in unstructured, real-world terrain; they allow robots to step around cluttered environments, scramble up hills, carry heavy loads, and even perform acrobatics. However, mechanical limbs cannot operate as a means for such dynamic locomotion if they are simply treated as general articulated...
    Resource Type:
    Dissertation
    Full Text:
    Ross L. Hatton Robotic limbs have been shown to enable mobility in unstructured, real-world terrain

  • Generalized Preconditioning to Accelerate Simulations with Large Multiphase Chemical Kinetics Models

    Creator:
    Walker, Anthony S.
    Abstract:
    Combustion emissions produced from burning real transportation fuels have many environmental impacts. However, detailed chemistry across multiple phases, time scales, and thermodynamic conditions make predicting combustion emissions challenging. Detailed modeling of the gas phase alone is prohibitively expensive, due to the large size and stiffness of the kinetic models. The...
    Resource Type:
    Dissertation
    Full Text:
    accelerating simulations with large kinetic models Anthony S. Walker, Raymond L. Speth, & Kyle E. Niemeyer My

  • Stability and biological responses of zinc oxide metalworking nanofluids (ZnO MWnF™)

    Creator:
    Niyaghi, Faraz
    Abstract:
    Zinc oxide nanoparticles (ZnO NPs) have demonstrated the ability to improve lubrication and thermal conductivity, and stand as promising metalworking lubricant and coolant additives due to their low cost compared to other NPs. While nanomaterials are a focus of research due to their potential to enable advanced technologies, little is...
    Resource Type:
    Masters Thesis
    Full Text:
    . Stacey L. Harper, Dr. Charlotte Wickham, and Dr. David S. Kim for serving on my committee. My special