Index Catalog // ScholarsArchive@OSU

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:: the degree of Master of Science in Mechanical Engineering presented on April 20, 2018. Title

An investigation of the feasibility of a process-intensified differential temperature water-gas shift reactor with integrated Pt/Al2O3 catalyst

Creator:: Hu, Kathy Q.
Abstract:: There has been serious interest in hydrogen as a source of energy in the United States due to its capability of delivering a sustainable, carbon-free energy future. Currently, most hydrogen in the United States is produced via the steam methane reforming of natural gas, which converts methane to hydrogen through...
Resource Type:: Masters Thesis
Full Text:: the degree of Master of Science in Mechanical Engineering presented on 20 January 2023. Title: An

Leading Edge Separation Analysis of Oscillating Airfoil Energy Harvesters

Creator:: Ngo, Vickie
Abstract:: Oscillating foil energy harvesters are analyzed at optimal reduced frequencies (𝑘=𝑓𝑐/𝑈) to determine how the leading edge radius of curvature affects leading edge separation. The understanding of leading edge separation and its behaviors is critical to predicting the transient lift profile of an airfoil. The separation is therefore also critical...
Resource Type:: Masters Thesis
Full Text:: Ngo for the degree of Master of Science in Mechanical Engineering presented on September 20, 2021

Evaluation of the predictive capability of two-phase flow maps for microchannel condensation of R-134a at low mass flux conditions

Creator:: VanderPutten, Michael A.
Abstract:: Predicting condensation flow regimes and the associated heat transfer and pressure drop in microchannels is critical for designing terrestrial and space systems for heating, cooling, power generation, and advanced manufacturing. It is well established that in flows approaching the microscale (Dh < 1 mm) gravity-dominated flow regimes become less relevant,...
Resource Type:: Masters Thesis
Full Text:: : Evaluation of the Predictive Capability of Two-Phase Flow Maps for Microchannel Condensation of R-134a at

An experimental study of fluid flow and heat transfer in rectangular microchannels

Creator:: Popescu, Aristotel
Resource Type:: Dissertation
Full Text:: Flow and Heat Transfer in Rectangular Microchannels. Abstract approved: James R. This thesis reports

Effects of a thin, flexible nozzle on droplet formation and impingement

Creator:: Hawke, Shane R.
Abstract:: The droplet formation process in the vicinity of the nozzle exit and the behavior of a spreading droplet during impingement on a smooth glass surface were studied. Two nozzle geometries were tested. The first case was a stiff stainless steel nozzle plate 0.787 mm thick. The second case was a...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Shane R. Hawke for the degree of Master of Science in Mechanical

Significance of High-Pressure-Torsion Processing on an Aluminum-Lithium Aerospace Alloy

Creator:: Keller, Marina
Abstract:: Aluminum alloys are popular in aerospace and automotive industries because of their relatively high strength-to-weight ratio. The study of enhancing aluminum’s mechanical properties through grain refinement is especially important. One such technique is High-Pressure Torsion processing (HPT), which leads to significant grain size refinement and enhances mechanical properties like ductility...
Resource Type:: Honors College Thesis
Full Text:: ranges from r = 0 mm - 4.8mm while the number of turns are 1, 10, and 20 turns. A constant disk

Effect of PZT driving waveform and frequency on meniscus shape and dropon-demand droplet formation parameters

Creator:: Yang, Guozhong
Abstract:: For piezoelectric stack (PZT) driven droplet generator, the driving waveform and driving frequency effect on liquid filament shape and droplet characteristics have been experimentally studied. The experimental study was based on a PZT driven droplet generator with known geometric design parameters and working fluid properties. A lumped-element-model (LEM) constructed to...
Resource Type:: Dissertation
Full Text:: PZT driving frequency, about 20%. Droplet velocity increases with driving frequency, about 40

A study of adiabatic and diabatic flow boiling in parallel microchannels and fractal-like branching microchannels

Creator:: Daniels, Brian J.
Abstract:: A one-dimensional numerical model has been developed to study diabatic and adiabatic flow boiling in microchannels. This model accounts for developing flow effects and variable property effects. The model uses correlations for void fraction and two-phase multipliers found in the literature. The model has been used to study the performance...
Resource Type:: Dissertation
Full Text:: channel width of 100 μm. The channel pressure drops varied from 20 kPa to 90 kPa. These results were

Development of Two-Color Laser Induced Fluorescence Fluid Temperature Imaging for Free Convection Heat Transfer Applications

Creator:: McAfee, Rachel C.
Abstract:: The development of a continuous and reliable cooling method for computer chips is an evolving subject requiring continuous research in both computer science and thermal management. Two-dye laser induced fluorescence (LIF) provides a minimally invasive way to investigate electronics cooling fluid behavior. Dielectric fluids are of particular interest as they...
Resource Type:: Honors College Thesis
Full Text:: Technology 20, pp. 11-21, 2008. [8] M. David, D. Fogg, C. Hidrovo, R. Flynn, K. Goodson, “Development and

ScholarsArchive@OSU

Fluidized Bed Reactor Engines

An investigation of the feasibility of a process-intensified differential temperature water-gas shift reactor with integrated Pt/Al2O3 catalyst

Leading Edge Separation Analysis of Oscillating Airfoil Energy Harvesters

Evaluation of the predictive capability of two-phase flow maps for microchannel condensation of R-134a at low mass flux conditions

An experimental study of fluid flow and heat transfer in rectangular microchannels

Effects of a thin, flexible nozzle on droplet formation and impingement

Significance of High-Pressure-Torsion Processing on an Aluminum-Lithium Aerospace Alloy

Effect of PZT driving waveform and frequency on meniscus shape and dropon-demand droplet formation parameters

A study of adiabatic and diabatic flow boiling in parallel microchannels and fractal-like branching microchannels

Development of Two-Color Laser Induced Fluorescence Fluid Temperature Imaging for Free Convection Heat Transfer Applications

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