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Filtering by: Creator Chavez, Deborah J. Remove constraint Creator: Chavez, Deborah J. Committee Member Liburdy, James Remove constraint Committee Member: Liburdy, James

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  • Preliminary Numerical Study of a Condenser Using Fractal-Like Patterned Hydrophobic and Hydrophilic Strips

    Creator:
    Lazaroff, Spencer A.
    Abstract:
    Condensers are vital components of power plants and are often one of the most major cost concerns when planning construction. Generally speaking, the surface area required to dissipate the heat generated in the boiler is so great that enormous and expensive structures are necessary. The usage of a hybrid surface...
    Resource Type:
    Honors College Thesis
    Date Created:
    Full Text:
    . Abstract approved:_____________________________________________________ Deborah Pence Condensers are

  • Void fraction variations in a fractal-like branching channel network

    Creator:
    Cullion, Rebecca
    Abstract:
    Two-phase flow in a fractal-like branching microchannel heat sink may have enhanced heat transfer capabilities over single phase flow in the same branching channel network. In order to exploit this potential, a complete understanding of flow boiling in this geometry is required. The fractal-like geometry is similar to that of...
    Resource Type:
    Dissertation
    Full Text:
    approved: . u Deborah Pence Two-phase fl.ow in a fractal-like branching microchannel heat sink may

  • On the optimization of performance in fractal-like branching microchannel heat transfer devices

    Creator:
    Heymann, Douglas Benjamin
    Abstract:
    Fractal-like branching microchannel flow networks have been found to improve wall temperature uniformity and decrease both pressure drop and flow power compared to arrays of straight microchannels. The present study seeks to maximize the benefits of fractal-like branching channels by means of a gradient-based optimization algorithm. The algorithm identifies the...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: Deborah V. Pence Fractal-like branching microchannel flow networks have been found to

  • Analysis of Staged Hydraulic Air Compressors

    Creator:
    Shibley-Styer, Ian
    Abstract:
    To investigate the viability of staging hydraulic air compressors (HACs), a model for HACs operating with a closed loop water cycle powered by a pump was made. This model was used to simulate how these HACs would respond to variable heights and mass flow ratios for both single-stage and multi-stage...
    Resource Type:
    Honors College Thesis
    Full Text:
    . Abstract approved: _____________________________________________________ Deborah Pence To

  • Performance and flow stability characteristics in two-phase confined impinging jets

    Creator:
    Sabo, Michael D.
    Abstract:
    Advances in electronics fabrication, coupled with the demand for increased computing power, have driven the demand for innovative cooling solutions to dissipate waste heat generated by these devices. To meet future demands, research and development has focused on robust and stable two-phase heat transfer devices. A confined impinging jet is...
    Resource Type:
    Masters Thesis
    Full Text:
    and Flow Stability Characteristics in Two-Phase Confined Impinging Jets. Abstract approved: Deborah

  • Freeze Stage Analysis of an Indirect Freeze Desalination System

    Creator:
    Whitaker, Trevor A.
    Abstract:
    Freeze desalination poses as a potential solution to many of the issues that accompany current desalination methods. The research detailed in this manuscript involves creating and analyzing a numerical model of the freezing operation of an indirect contact freeze-melting (FM) desalination system. In this initial analysis, pure water is frozen...
    Resource Type:
    Honors College Thesis
    Full Text:
    System Abstract Approved: Deborah V. Pence Thermal-Fluid Sciences Freeze desalination poses as a

  • A study of micro-scale, fractal-like branching flow networks for reduced pumping power and improved temperature uniformity

    Creator:
    Alharbi, Ali Y.
    Abstract:
    A first generation, one-dimensional predictive model is proposed for designing heat sinks with fractal flow networks. A three-dimensional computational fluid dynamics (CFD) model is analyzed as a means for validating the model and identifying areas for improvement. Two separate CFD models were developed. One was analyzed with conjugate heat transfer...
    Resource Type:
    Masters Thesis
    Full Text:
    my advisor, Dr. Deborah V. Pence, for her guidance, support, and advice. I owe most of my

  • Experimental study of two-phase gas-liquid flow in a microscale fractal-like branching flow network

    Creator:
    Kwak, Younghoon
    Abstract:
    Two-phase gas-liquid flows in microscale fractal-like branching channel flow networks were experimentally studied to assess the validity of existing void fraction correlations and flow regimes based on superficial gas and liquid velocities. Void fractions were assessed using two different methods. First, void fraction data were acquired using a High-Speed-High-Resolution (HSHR)...
    Resource Type:
    Dissertation
    Full Text:
    Deborah V. Pence Two-phase gas-liquid flows in microscale fractal-like branching channel flow

  • Spatio – temporal temperature variations during droplet impingement evaporation : effects of nanofluid and nano-structured surface

    Creator:
    Graber, Christof
    Abstract:
    Droplet and spray impingement cooling are typically used in high heat flux thermal management. In this thesis, droplet impingement and evaporation heat transfer characteristics are determined from measured spatially- and temporally- varying fluid and surface temperatures. Unique to this study is the documentation of the effects of using a nanofluid...
    Resource Type:
    Masters Thesis
    Full Text:
    Evaporation: Effects of Nanofluid and Nano-structured Surface Abstract approved: Deborah V. Pence

  • The Use of Fractal-Like Bifurcating Flow Channels for Biological Targeted Cooling

    Creator:
    Stottlemyre, Wyatt
    Abstract:
    In the wake of climate change, the risk of heat related illnesses has continuously increased over the past several decades. While thermal management solutions have continued to improve, there is a need for efficient cooling systems that conform with the human body. This study combines the solutions from fractal-like flow...
    Resource Type:
    Honors College Thesis
    Full Text:
    :_____________________________________________________ Deborah V. Pence In the wake of climate change, the risk of heat related illnesses has