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Filtering by: Advisor Crawford, David L. Remove constraint Advisor: Crawford, David L. Committee Member Niemeyer, Kyle Remove constraint Committee Member: Niemeyer, Kyle

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  • Temperature Evolution of Spark Kernels in Quiescent and Cross-flow Conditions

    Creator:
    Okhovat, Sebastian
    Abstract:
    Numerous physical and chemical processes are required for successful ignition of a flammable mixture, many of which have been well characterized. However, one aspect of the ignition process that has received limited consideration is understanding the temperature of the spark kernel. A spark kernel is the volume of heated gas...
    Resource Type:
    Masters Thesis
    Full Text:
    . Abstract approved: ______________________________________________________ David L. Blunck

  • Radiation Emissions from Turbulent Diffusion Flames Burning Large Hydrocarbon Fuels

    Creator:
    Zeuthen, Eric D.
    Abstract:
    The purpose of this study is to measure and compare radiation emissions from flames burning large hydrocarbon fuels to assist in understanding how the molecular composition changes radiation emissions. Radiative heat transfer is significant because it is a primary mode of heat transfer for many combustion devices. This study also...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ David L. Blunck The purpose of this study is to measure and compare radiation emissions

  • 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:
    Liftoff of Non-premixed Large Hydrocarbon Flames in MILD Conditions Abstract approved: David L. Blunck

  • The Global Consumption Speeds of Premixed Large-Hydrocarbon Fuel/Air Turbulent Bunsen Flames

    Creator:
    Fillo, Aaron Jesse
    Abstract:
    Large-hydrocarbon fuels are used for ground and air transportation because of their high energy-density and will be for the foreseeable future. However, combustion of large-hydrocarbon fuels in a turbulent environment is poorly understood and difficult to predict. The turbulent flame speed, which is the velocity at which a flame front...
    Resource Type:
    Masters Thesis
    Full Text:
    Consumption Speeds of Premixed Large-Hydrocarbon Fuel/Air Turbulent Bunsen Flames Abstract approved: David L

  • Multi-Scale Study of Ember Production and Transport under Multiple Environmental and Fuel Conditions

    Creator:
    Hudson, Tyler R.
    Abstract:
    Spot fires caused by lofted embers (i.e., firebrands) can be a significant factor in the spread of wildland fires. Embers can be especially dangerous near the wildland-urban interface (WUI) because of the potential for the fire to be spread near or on structures. Many studies have investigated the transport of...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: David L. Blunck Spot fires caused by lofted embers (i.e., firebrands) can be a

  • Turbulent Combustion Analysis of Large Hydrocarbon Fuels in a Reduced Pressure Environment

    Creator:
    Schorn, Nathan E.
    Abstract:
    The aviation industry is pushing for better fuels and gas turbine engines for several reasons: cost, emissions, and to a lesser extent high-altitude relights. One aspect that research has been focused on to help reduce costs, emissions and better understand high-altitude relights is studying the combustion behavior of the fuel...
    Resource Type:
    Masters Thesis
    Full Text:
    Large Hydrocarbon Fuels in a Reduced Pressure Environment Abstract approved: David L. Blunck The

  • The Influence of Fuel Characteristics on Smoldering Behavior through Porous Fuels

    Creator:
    Ross, Andrew H.
    Abstract:
    Smoldering can play a dangerous role in the ignition and spread of wildfires. Naturally occurring fuels consist of multiple layers of organic materials with varying particle sizes due to differences in decomposition stages with fuel depth, yet the influence of particle size on burning behavior is poorly understood. Previous research...
    Resource Type:
    Masters Thesis
    Full Text:
    : __________________________________________________ David L. Blunck Smoldering can play a dangerous role in the ignition and spread of

  • Identifying the Effects of Combustion Products, Turbulent Fluctuations, and Delivered Energy on Ignition Characteristics of Forced Ignition of Jet-A/air Mixtures

    Creator:
    Teope, Kaz I.
    Abstract:
    The operation of gas turbine engines depends on the reliable ignition of fuel/air mixtures. Gas turbine engines are commonly used as commercial and military aviation power plants. However, consistent ignition within gas turbine engines is still a problem, especially for more challenging operating conditions such as emergency operations. This work...
    Resource Type:
    Dissertation
    Full Text:
    Characteristics of Forced Ignition of Jet-A/air Mixtures Abstract approved: David L. Blunck The operation of

  • Ignition of Fuel Beds by Firebrands

    Creator:
    Bean, Derek R.
    Abstract:
    The severity of wildfires around the globe is increasing. At the same time, urban development is expanding outward into areas where severe fires occur. There is an increased risk of home loss to fires in areas where severe fires and urban expansion meet. Ignition of homes or nearby fuel is...
    Resource Type:
    Dissertation
    Full Text:
    : Sensitivities of Porous Beds and Plates to Ignition by Firebrands Derek Bean, David L. Blunck My contributions