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Filtering by: Creator Coblentz, Kyle E. Remove constraint Creator: Coblentz, Kyle E. Advisor Blunck, David L. Remove constraint Advisor: Blunck, David L.

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  • 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:
    AN ABSTRACT OF THE THESIS OF Nathan E. Schorn for the degree of Master of

  • 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

  • Experimental Study of the Impact of Physical and Chemical Properties on Smoldering Combustion in Natural Fuels

    Creator:
    Smucker, Benjamin
    Abstract:
    Smoldering combustion in wildland fires is difficult to extinguish, can transition to flaming combustion, and produces a significant amount of pollutants. It is necessary to understand parameters controlling smoldering in order to help predict the smoldering behavior and potentially mitigate these hazards. The wide variety of natural fuels that occur...
    Resource Type:
    Dissertation
    Full Text:
    years. Thank you to Tejas Mulky, Dr. Jayani Jayasuriya, and Dr. Kyle Niemeyer, our collaborators here

  • 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:
    . Joshua Gess, Kyle Niemeyer, and Bryony DuPont, thank you for pointing out that even if this thesis is

  • 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:
    Information . . . . . . . . . . . . . 97 E Single-Shot Power Measurement Device

  • 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

  • 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:
    Appendix F: Deconvolution of Intensity to attain Temperature (DIT) Code ....................53 Appendix E

  • 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:
    thank and acknowledge my undergraduate research assistant Kyle Froman for his assistance in setting up

  • 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:
    and researcher. I am also grateful to Dr. Brian Fronk, Dr. Guillaume Mignot, Dr. Kyle Niemeyer, Dr

  • 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:
    : RH, U, TI, T, wind di- rection Firebrand: T, E, size, composition Pyrolysis Gases Pyrolysis Front

  • Effects of Dilution on Turbulent Consumption Speeds of Jet Fuel

    Creator:
    Walters, Ian
    Abstract:
    Combustion systems for transportation applications typically use large hydrocarbon fuels in turbulent premixed or partially premixed environments. Combustion products can enter the reaction region through natural recirculation or combustion control mechanisms. The objective of this study is to characterize how dilution by combustion products affects the turbulent consumption speed for...
    Resource Type:
    Honors College Thesis
    Full Text:
    front. Key Words: Combustion, Jet-A, turbulent flame speed, dilution, Bunsen flames Corresponding e

  • Influence of Two-Phase Fuel on Detonation Behavior

    Creator:
    Barlow, Dustin
    Abstract:
    Detonation combustion is of great interest for propulsion devices because of its potential to increase thermodynamic efficiency, reduce the weight of current gas turbine engines, and rapidly accelerate to high Mach numbers. Detonation engines might also have the ability to decrease harmful exhaust products from traditional propulsion methods. In order...
    Resource Type:
    Masters Thesis
    Full Text:
    Group for their assistance, specifically Kyle Weber, Conner Flaherty, Deepak Sharma, and Bryan