Index Catalog // ScholarsArchive@OSU

Condensation of a zeotropic mixture, R-454C, and its individual components, R-1234yf and R-32, in microfin tubes

Creator:: Matty, Ethan P.
Abstract:: This work compares the condensation heat transfer and pressure drop for zeotropic refrigerant R-454C and its individual components, R-32 and R-1234yf, in horizontal microfin tubes. One microfin tube has a 4 mm outer diameter, 0.18 mm wall thickness, and a surface area ratio of 1.56. The second tube has a...
Resource Type:: Masters Thesis
Full Text:: phase from B to D along the dew point line. At D′ the mole fraction of R-32 in the liquid phase is

Evaluation of Materials for Use in Open-Cycle Magnetohydrodynamic Power Generation

Creator:: Bowen, Michael S.
Abstract:: Recent interest in oxy-fuel combustion for carbon capture, as well as advancements in technologies such as magnetics, materials, and computational modeling has sparked renewed interest in magnetohydrodynamic (MHD) power generation. The increased temperatures of oxy-fuel combustion versus air-fuel combustion poses a challenge in the selection of materials for plasma exposed...
Resource Type:: Masters Thesis

Mechanical engineering design across cultures : a method of designing for cultures

Creator:: Van Bossuyt, Douglas L.
Abstract:: Mechanical design is often based on formal methodologies such as Quality Function Deployment. Techniques to quantitatively account for attractability, sensory perception, and affective design have been successfully incorporated into these methods and are receiving growing acceptance across many industries. Although the adoption of these methods marks a large improvement for...
Resource Type:: Masters Thesis
Full Text:: R. Zaworski Mechanical design is often based on formal methodologies such as Quality Function

Assessing steel bevel gear design alternatives for sustainability performance through unit manufacturing process modeling

Creator:: Eastwood, Michael D.
Abstract:: As the growth in demand for sustainable manufacturing continues, companies must begin to make conscious design decisions with regard to the sustainability of their products. This means balancing economics of production with environmental and social performance. Thus, design and manufacturing engineers must consider economic, environmental, and social aspects simultaneously when...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Michael D. Eastwood

Assisting decision making in component design for sustainable manufacturing

Creator:: Eastlick, Dane D.
Abstract:: Current life cycle assessment tools are often deficient in assisting design for sustainable manufacturing efforts. Integrating an improved assessment method into a decision support framework will provide a means for designers and engineers to better understand the impacts of their decisions. A unit process modeling-based sustainability assessment method is presented...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Dane D. Eastlick

Design of a mechanically assisted dependent transfer mechanism for use on board commercial aircraft

Creator:: Gibson, Brenton D.
Abstract:: Business and recreation in the modern day world often include air travel as their cornerstone. Travelers who are disabled and wheelchair bound have to undergo a transfer process to board and deplane a commercial aircraft. This transfer process is typically done manually, with agents physically lifting the passenger who is...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Brenton D. Gibson for the degree of Master of Science in Mechanical

An investigation of the effects of radial acceleration on a fluidized bed used for filtration of air-borne particulate of submicron size

Creator:: Junge, David C.
Resource Type:: Dissertation
Full Text:: respect to fluidized beds. Doctoral Committee: R. W. Boubel, J. Go Mingle, F, a Schaumburg, L. D. Calvin

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

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:: AN ABSTRACT OF THE THESIS OF Eric D. Zeuthen for the

Exploring the Ductility Minimum of Niobium C103 at Intermediate Temperatures using Triaxial Tensile Specimens

Creator:: Wood, Thomas N., II
Abstract:: This work explores the mechanical properties of single-phase niobium alloy C103 from room temperature to 600°C for the purpose of expanding safe uses of the material into new applications. The study utilizes a symmetrically notched triaxial tensile specimens to manipulate the internal stress field in order to observe the changes...
Resource Type:: Masters Thesis
Full Text:: that for this type of geometry, at very low strain, or sharper notches - with an R/d less than

ScholarsArchive@OSU

Condensation of a zeotropic mixture, R-454C, and its individual components, R-1234yf and R-32, in microfin tubes

Evaluation of Materials for Use in Open-Cycle Magnetohydrodynamic Power Generation

Mechanical engineering design across cultures : a method of designing for cultures

Assessing steel bevel gear design alternatives for sustainability performance through unit manufacturing process modeling

Assisting decision making in component design for sustainable manufacturing

Design of a mechanically assisted dependent transfer mechanism for use on board commercial aircraft

An investigation of the effects of radial acceleration on a fluidized bed used for filtration of air-borne particulate of submicron size

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

Radiation Emissions from Turbulent Diffusion Flames Burning Large Hydrocarbon Fuels

Exploring the Ductility Minimum of Niobium C103 at Intermediate Temperatures using Triaxial Tensile Specimens

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