Index Catalog // ScholarsArchive@OSU

Design and Testing of the FUEL System: Integrating Engineering and Ethnographic Methods in Global Development Efforts

Creator:: Ventrella, Jennifer L.
Abstract:: Clean cooking technologies and fuels have been cited as a viable way to slow climate change and reduce the health and environmental impacts associated with traditional cooking devices used by 40% of the world. While engineers in the Design for Development sector have created hundreds of stove designs that perform...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Jennifer L. Ventrella

A modeling and empirical study of a novel bimodal natural gas internal combustion engine with fuel compression capability

Creator:: Elgin, Robert C., III
Abstract:: Given the current abundant supply and cheap price of natural gas (NG) in the United States, there is a significant opportunity to use this fuel for transportation. However, there are few fueling stations for consumers. To address this need, a dual-mode engine has been developed where in one mode all...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: Christopher L. Hagen Given the current abundant supply and cheap price of natural

Assessing Mass Diffusion Modeling in Premixed Flames

Creator:: Fillo, Aaron J.
Abstract:: Implementing multicomponent diffusion in numerical combustion studies is computationally expensive due to the challenges involved in computing diffusion coefficients. As a result, mixture-averaged diffusion treatments or simpler methods are used to avoid these costs. However, the accuracy and appropriateness of the mixture-averaged diffusion model has not been verified for three-dimensional...
Resource Type:: Dissertation
Full Text:: 〉 normalized using the laminar flame thickness, δL. The inset shows 〈χ̃|T 〉 normalized by δL

Design and performance of a small scale waste heat recovery unit

Creator:: Ward, Christopher
Abstract:: A microchannel heat exchanger was designed for diesel waste heat recovery and its performance was evaluated. The 21x15x8 cm unit was constructed from diffusion brazed stainless steel lamina and weighed 11 kg. Operating from a 13.4 kW generator with an exhaust temperature of 500 °C the unit delivered 11.1 kW...
Resource Type:: Masters Thesis
Full Text:: . Conductive resistance is defined as ( 3.8 ) where l is the solid distance across

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:: , Dr. Kendra Sharp, and Dr. David Hurwitz. I would like to thank all the current and past members of

Empirical Characterization and Data-Driven Optimization of Water-Energy Systems

Creator:: Elhashimi, Mohammed A.
Abstract:: The accelerated development in water-energy systems calls for advanced modeling and optimization tools to improve technologies’ performance. Water desalination is a manifestation of water-energy system that is challenged by different operational constraints. The scarcity and uneven distribution of freshwater around the world makes water desalination an indispensable process to address...
Resource Type:: Dissertation

Single Phase and Flow Boiling Heat Transfer and Flow Characterization in Microscale Pin Fin Heat Sinks

Creator:: Rasouli, Erfan
Abstract:: The ever increasing requirements for heat dissipation in various thermal management applications such as computer chip cooling and high power electronics have necessitated the need for novel thermal management techniques. Thermal management using heat sinks with microscale features is amongst the prominent techniques developed over the past two decades. In...
Resource Type:: Dissertation
Full Text:: Pence, Dr. Kendra Sharp, Dr. Sourabh Apte, and my GCR Dr. Adam Higgins for taking the time to review

Performance of a thermally activated cooling system and design of a microchannel heat recovery unit

Creator:: Seward, Ryan
Abstract:: The performance of a combined vapor-compression cycle/ORC is evaluated using waste-heat from a diesel generator. A flat plate microchannel heat exchanger is employed to provide energy exchange between the diesel exhaust stream and an oil loop, which provides energy to a boiler. This study finds an increased diesel duty corresponds...
Resource Type:: Masters Thesis
Full Text:: coefficient, this reduction also increases pressure drop. Δ𝑃 = 𝑓 𝜌𝑉2 2 𝐿 𝐷 (2.3) 11

Design for Clean Technology Adoption: Application of Discrete Choice Analysis and the Theory of Planned Behavior for Development Engineering

Creator:: Pakravan, Mohammad H.
Abstract:: Clean technologies can address multiple challenges associated with climate change, environmental protection, and human health. However, the impact desired by introduction of such technologies is achievable only if new options effectively replace inefficient, conventional practices. This ‘design for adoption’ requires understanding of user motivations, associated beliefs, context of use, and...
Resource Type:: Dissertation

ScholarsArchive@OSU

Design and Testing of the FUEL System: Integrating Engineering and Ethnographic Methods in Global Development Efforts

A modeling and empirical study of a novel bimodal natural gas internal combustion engine with fuel compression capability

Assessing Mass Diffusion Modeling in Premixed Flames

Design and performance of a small scale waste heat recovery unit

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

Empirical Characterization and Data-Driven Optimization of Water-Energy Systems

Single Phase and Flow Boiling Heat Transfer and Flow Characterization in Microscale Pin Fin Heat Sinks

Performance of a thermally activated cooling system and design of a microchannel heat recovery unit

Design for Clean Technology Adoption: Application of Discrete Choice Analysis and the Theory of Planned Behavior for Development Engineering

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