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Graduate Theses, Dissertations, and Problem Reports

Theses/Dissertations

2012

Automotive engineering

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Design And Evaluation Of A Marine Scrubber System, Louise S. Ayre Dec 2012

Design And Evaluation Of A Marine Scrubber System, Louise S. Ayre

Graduate Theses, Dissertations, and Problem Reports

Increasingly stringent oxides of nitrogen (NOX) emissions regulations for diesel marine engines are resulting in the development of newer engines with inherent NOX emissions reduction technologies. With typical useful service lives over 20 years, older diesel marine engines are producing disproportionate amounts of NOX emissions when compared with their newer counterparts. The development of retrofit exhaust aftertreatment technologies would therefore aid in reducing the total NOX emissions from these engines.;A marine scrubber system for the reduction of NOX emissions from diesel marine engines was designed, constructed, and evaluated. This work focused on gathering data for the design of a marine …


Development Of A Powertrain Control Algorithm For A Compound-Split Diesel Hybrid-Electric Vehicle, Douglas Alan Ward Dec 2012

Development Of A Powertrain Control Algorithm For A Compound-Split Diesel Hybrid-Electric Vehicle, Douglas Alan Ward

Graduate Theses, Dissertations, and Problem Reports

The goal of this research was to develop a unique powertrain control algorithm for a diesel-powered compound-split hybrid crossover utility vehicle (CUV) and evaluate the fuel consumption and greenhouse gas emissions benefits that can be realized compared to existing non-hybrid, gasoline-powered CUVs. This was achieved through the implementation of engine on/off functionality, regenerative braking, and electric-only drive. The research was conducted in conjunction with the university's participation in EcoCAR: The NeXt Challenge, an inter-collegiate advanced vehicle engineering competition focused on developing alternatively powered vehicles in the interest of providing improved fuel efficiency and reduced tailpipe emissions while maintaining useful vehicle …


Vcast: A Distance-Sensitive Scalable Information Dissemination Protocol, Raja Abhinay Moparthi Jan 2012

Vcast: A Distance-Sensitive Scalable Information Dissemination Protocol, Raja Abhinay Moparthi

Graduate Theses, Dissertations, and Problem Reports

The future of intelligent transportation systems lies in dealing with safety and navigation of vehicles. Building a technology that provides the real-time information about the state of other vehicles like its location, speed and direction would help in developing a system that ensures safety along with navigation. However, the network limitations pose difficulty in obtaining the state information over multiple-hops, because of the bandwidth limitations and congestion in the shared wireless channel. Overcoming this challenge would yield an intelligent transportation system which gives information regarding the collisions, lane changes and merges, emergency vehicle approaching alerts, stopped vehicle alerts, etc., over …


Concentration And Size Distributions Of Nanoparticle Emissions During Low Temperature Combustion Using Fuels For Advanced Combustion Engines (Face), Peter Bonsack Jan 2012

Concentration And Size Distributions Of Nanoparticle Emissions During Low Temperature Combustion Using Fuels For Advanced Combustion Engines (Face), Peter Bonsack

Graduate Theses, Dissertations, and Problem Reports

Due to tightening emission legislations, both within the US and Europe, including concerns regarding greenhouse gases, next-generation combustion strategies for internal combustion (IC) diesel engines that simultaneously reduce exhaust emissions while improving thermal efficiency have drawn increasing attention during recent years. In-cylinder combustion temperature plays a critical role in the formation of pollutants as well as in thermal efficiency of the propulsion system. One way to minimize both soot and NOx emissions, is to limit the in-cylinder temperature during the combustion process by means of high levels of dilution via exhaust gas recirculation (EGR) combined with flexible fuel injection strategies. …