Index Catalog // ScholarsArchive@OSU

Experimental investigation of supercritical heat transfer of carbon dioxide in parallel square microchannels with a single-wall constant heat flux boundary condition

Creator:: Zada, Kyle R.
Abstract:: In the vicinity of the pseudocritical point, supercritical carbon dioxide (sCO₂) undergoes a steep change in properties from “liquid-like” to “gas-like” as it is heated at a constant pressure. At the same time, there is a large spike in specific heat which can yield high heat transfer coefficients and heat...
Resource Type:: Masters Thesis
Full Text:: Dioxide in Parallel Square Microchannels with a Single-Wall Constant Heat Flux Boundary Condition

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:: . Brian Fronk, for taking a chance on a seventeen year-old. You have been a consistently positive role

Usage of Digital Image Correlation in Single and Multiple Stereo Systems for Strain and Shape Measurement

Creator:: McKinley, Timothy A.
Abstract:: This dissertation details the application of digital image correlation (DIC) in novel methods for mechanical testing and shape characterization. The first usage manifested in the development of a novel composite test specimen that provided the ability to characterize the matrix compression energy release rate at initiation and subsequent crack propagation....
Resource Type:: Dissertation
Full Text:: Measurement Abstract approved: ______________________________________________________ Brian K

Investigation of Seasonal Performance of a Membrane Heat Pump System in Different Climate Regions

Creator:: Bukshaisha, Ahmad A.
Abstract:: Membrane based heat pumps systems have attracted the attention of many research groups as a potentially more environmentally friendly alternative to vapor compression systems that are being used for space cooling in 90\% of the buildings in the United States. Several prototypes systems have been developed, with reported claims of...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Ahmad A. Bukshaisha for the

Investigation of In-tube Non-equilibrium Condensation of Low Global Warming Potential Refrigerants

Creator:: Jacob, Tabeel A.
Abstract:: This work investigates the in-tube condensation of low global warming potential (GWP) zeotropic refrigerant mixtures R448A, R450A, R452A, R454B and R454C. These refrigerants have been proposed for a wide range of commercial heating, ventilation, air-conditioning applications, but their heat and momentum transport phenomenon were not well understood. Thus, in this...
Resource Type:: Dissertation
Full Text:: ACKNOWLEDGEMENTS I would like to express my gratitude to my advisor, Dr. Brian Fronk for being a re- markable

Turbulent Heat Transfer of Supercritical Carbon Dioxide in the Proximity of the Pseudo-Critical Point with Non-Uniform Heat Flux Boundary Conditions

Creator:: Jajja, Saad A.
Abstract:: Seven decades of supercritical heat transfer research have not seen an attempt to characterize turbulent thermal transport in internal flows subject to asymmetric heating. Existing heat transfer models therefore do not account for phenomena that dictates thermal transport, in the proximity of the pseudo-critical point, for non-uniform heating. Additionally, past...
Resource Type:: Dissertation
Full Text:: -Critical Point with Non-Uniform Heat Flux Boundary Conditions Abstract approved: Brian M. Fronk Seven

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:: AN ABSTRACT OF THE THESIS OF Michael A. VanderPutten

Self-adaptive Subsets for Stretched and Rotated Textures in Digital Image Correlation

Creator:: Gao, Zizhan
Abstract:: Digital image correlation (DIC) uses pairs of images, one in a reference state and one after in situ manipulation of the object, to measure full-field displacements and strains by tracking the motion of small image subsets. Subset selection is always a crucial part of DIC technique as it has a...
Resource Type:: Capstone Project
Full Text:: Student: Zizhan Gao Major Professor: Brian Bay 1 Contents Abstract

Fluidic and thermal modeling for the high production rate synthesis of high quality nanoparticles

Creator:: Peterson, Daniel Alan
Abstract:: Advances of colloidal nanomaterials for societal benefit have been hampered by the high cost and low quality of nanoparticles (NPs). The production of high quality nanoparticles within colloidal suspension has two related concerns; (1) current high production rates methods of synthesizing nanoparticles result in a larger range of particle size,...
Resource Type:: Dissertation
Full Text:: Savior Jesus Christ, for he is worthy of praise. I would like to extend a special thank you to Dr. Brian

Micromixer assisted continuous flow synthesis of nanoparticles of binary compounds and their application

Creator:: Palanisamy, Barath
Abstract:: In this work, continuous synthesis routes for binary nanoparticles using advantages of microchannel mixing (low diffusion distances and higher mass transfer) and fast heating rates provided by ultrasound induced heating are investigated. In addition, the application of silica nanoparticles in anti-reflective coatings on glass and understanding the structure property-performance correlation...
Resource Type:: Dissertation
Full Text:: of Nanoparticles of Binary Compounds and their Application Abstract approved: Brian K Paul In

ScholarsArchive@OSU

Experimental investigation of supercritical heat transfer of carbon dioxide in parallel square microchannels with a single-wall constant heat flux boundary condition

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

Usage of Digital Image Correlation in Single and Multiple Stereo Systems for Strain and Shape Measurement

Investigation of Seasonal Performance of a Membrane Heat Pump System in Different Climate Regions

Investigation of In-tube Non-equilibrium Condensation of Low Global Warming Potential Refrigerants

Turbulent Heat Transfer of Supercritical Carbon Dioxide in the Proximity of the Pseudo-Critical Point with Non-Uniform Heat Flux Boundary Conditions

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

Self-adaptive Subsets for Stretched and Rotated Textures in Digital Image Correlation

Fluidic and thermal modeling for the high production rate synthesis of high quality nanoparticles

Micromixer assisted continuous flow synthesis of nanoparticles of binary compounds and their application

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