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

Biochar : saturated hydraulic conductivity and methylene blue sorption characteristics as applied to storm water treatment

Creator:: Morrow, Perry R.
Abstract:: This study evaluates the use and efficacy of biochar for treatment of source and nonpoint source pollutants in storm water. Biochar is the solid byproduct of incomplete combustion of biomass under low-oxygen and elevated temperature conditions (Keiluweit, 2010, Beesley and Dickinson, 2011, Bracmort, 2010). The source stock for tested biochar...
Resource Type:: Masters Thesis
Full Text:: hormone at low concentrations, i.e. less than 1 part per million (1µL L -1 ), (Taiz et al, 2002). The

Little green baby steps : transforming modern power production through microscale hydropower

Creator:: Holderman, Jennifer A.
Abstract:: Microscale hydropower, facilities that produce between 1 kW and 1 MW of power, has the potential to revolutionize modern power production. Unlike conventional large scale operations, these water supplies can be utilized with little impact on the environment. Hydropower per unit production can be very affordable compared to other renewable...
Resource Type:: Masters Thesis
Full Text:: the way. Additionally the Rada family wishes to honor their husband and father, Edward L. Rada, who

Advection-diffusion in inertial flow through periodically converging-diverging tubes

Creator:: Lambert, Adam
Abstract:: A direct numerical simulation of advection-diffusion in a sinusoidal tube was carried out using the commercial ﬁnite-volume code STAR-CD. The Reynolds numbers varied from Re = 0.1 to Re = 14.5. At the larger Reynolds numbers, steady-state eddies formed in the diverging sections and significantly inﬂuenced the macroscale dispersion. Long...
Resource Type:: Masters Thesis
Full Text:: 1-dimensional source-sink model using the semi-analytical solute transport code STAMMT-L. It was

Wave-by-wave Forecasting of Sea Surface Elevation for WEC Applications Utilizing NARX Neural Networks

Creator:: Gillespie, Alice
Abstract:: Forecasting of ocean waves over a short duration on the order of tens of seconds was approached with the optimization of wave energy conversion in mind. This study outlines the development of an artificial neural network model, specifically the Nonlinear Autoregressive Network with Exogenous Input (NARX), to predict a wave-by-wave...
Resource Type:: Masters Thesis
Full Text:: agreement. The coefficient of efficiency CE and the goodness-of-fit index F(l) are two metrics also

Preventing the Accumulation of Fine Sediments in Sand Dam Reservoirs: An Analytical Framework and Flume Experiments

Creator:: Ellingson, Joseph M.
Abstract:: Sand dams – low-head dams built in ephemeral streambeds that store water within saturated sediments – are a proven means to increase water supplies for rural communities in arid and semiarid regions. Water percolates into the reservoir-impounded sediments during wet season rains and can subsequently be extracted during the dry...
Resource Type:: Masters Thesis
Full Text:: to thank committee members Dr. Gordon Grant and Dr. Kendra Sharpe for consistently making time to

Wave modeling at the mouth of the Columbia River

Creator:: Kassem, Sarah
Abstract:: As the second largest river in the U.S., the entrance to the Columbia River is home to some of the most extreme wave conditions on the Pacific Coast. Winter storms commonly generate waves 6-8 m in height, which in combination with strong tidal currents, can produce dangerous navigation conditions. To...
Resource Type:: Masters Thesis
Full Text:: and Kendra Sharp for serving on my committee. Friends! They are truly the best things in the world

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

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

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

Biochar : saturated hydraulic conductivity and methylene blue sorption characteristics as applied to storm water treatment

Little green baby steps : transforming modern power production through microscale hydropower

Advection-diffusion in inertial flow through periodically converging-diverging tubes

Wave-by-wave Forecasting of Sea Surface Elevation for WEC Applications Utilizing NARX Neural Networks

Preventing the Accumulation of Fine Sediments in Sand Dam Reservoirs: An Analytical Framework and Flume Experiments

Wave modeling at the mouth of the Columbia River

Design and performance of a small scale waste heat recovery unit

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

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