Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 492 for “"Fuel consumption"”.
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Microscopic Fuel Consumption and Emission Modeling
Mathematical models to predict vehicle fuel consumption and emission metrics are presented in this thesis. Vehicle fuel consumption and emissions are complex functions to be approximated in practice due to numerous variables affecting their outcome. Vehicle energy and emissions are particularly …
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Mesoscopic Fuel Consumption and Emission Modeling
… sector is a major contributor to U.S. fuel consumption and emissions. Consequently, assessing the environmental impacts of transportation activities is essential for air-quality improvement programs. Current state-of-the-art models estimate vehicle emissions based on typical urban …
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Neural network aided aviation fuel consumption modeling
… of neural network technology to aviation fuel consumption estimation. This is achieved by developing neural networks representative jet aircraft. Fuel consumption information obtained directly from the pilot's flight manual was trained by the neural network. The trained network was able to …
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Modeling Aircraft Fuel Consumption with a Neural Network
… research involves the development of an aircraft fuel consumption model to simplify Bela Collins of the MITRE Corporation aircraft fuelburn model in terms of level of computation and level of capability. MATLAB and its accompanying Neural Network Toolbox, has been applied to data from the base …
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The individual contribution of automotive components to vehicle fuel consumption
Fuel consumption has grown to become a major point of interest as oil reserves are depleted. The purpose of this study is to determine the key components that cause variation in the instantaneous fuel consumption of vehicles and their level of impact using an in-depth literature review of technical …
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Fuel consumption prediction methodology for early stages of naval ship design
In recent years, fuel consumption has increased in importance as a design parameter in Navy ships. Economical fuel consumption is important not only for operating cost measures but also for ship endurance tankage requirements. Minimizing fuel consumption has many benefits for both naval and …
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Modeling Diesel Bus Fuel Consumption and Dynamically Optimizing Bus Scheduling Efficiency
… few models that estimate diesel and hybrid bus fuel consumption levels. Those that are available either require significant dynamometer data gathering to calibrate the model parameters and also produce a bang-bang control system (optimum control entails maximum throttle and braking input). This …
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The effects of atmospheric turbulence on fuel consumption in extended formation flight
… are not necessarily directly indicative of fuel savings. In a realistic environment, atmospheric turbulence will continuously perturb the formation’s aircraft and their wakes. As a result, each aircraft in the formation will experience fluctuations in aerodynamic loads. For an aircraft to …
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The disturbance map and minimization of fuel consumption during space manipulator maneuvers
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1989.
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Naval ship propulsion and electric power systems selection for optimal fuel consumption
… power requirements. Nowadays, increasing fuel costs are moving such decisions towards more fuel-efficient solutions. Unlike commercial ships, naval ships operate in a variety of speeds and electric loads, making fuel consumption optimization challenging. This thesis develops a flexible …
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Optimizing a start-stop system to minimize fuel consumption using machine learning
… engine off when the car comes to a stop, saving fuel that would be used to keep the engine running. However, these systems introduce additional energy costs, which are associated with the engine restarting. These energy costs must be balanced by the system. In this thesis I describe my work with …
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Transportation technology choice and fuel consumption in Egypt : an engineering-economic model
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1985.
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Big data fusion to estimate driving adoption behavior and urban fuel consumption
… uses the resulting travel demand and computes fuel consumption. The model is calibrated for application on any range of car fuel efficiency and combined with other sources of data to produce urban fuel consumption estimates for the city of Riyadh as an application. Targeted traffic congestion …
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Future light-duty vehicles : predicting their fuel consumption and addressing their potential
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2000.
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Factor of two : halving the fuel consumption of new U.S. Automobiles by 2035
… mix changes necessary to double the average fuel economy of new U.S. cars and light-trucks by model year 2035. To achieve this factor of two target, three technology options that are available and can be implemented on a large scale are evaluated: (1) channeling future vehicle technical …
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Effect of automotive electrical system changes on fuel consumption using incremental efficiency methodology
… This thesis is investigating the potential for fuel economy improvements and their associated economic advantages for different vehicle electric systems. The objective is to determine the effects on fuel consumption of electrical system choices under a variety of drive and load cycle …
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Design and Optimization of a Mobile Hybrid Electric System to Reduce Fuel Consumption
The high costs and high risks of transporting fuel to combat zones make fuel conservation a dire need for the US military. A towable hybrid electric system can help relieve these issues by replacing less fuel efficient standalone diesel generators to deliver power to company encampments. Currently, …
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Passive Solar Landscape Design: Its Impact on Fossil Fuel Consumption Through Landscape Design
… - comfort — our lives revolve around fossil fuels. Technology and the demands of living in today's society add to our gigantic fossil fuel appetite. With gas prices topping three dollars per gallon, changes must be made. This thesis project presents an analysis of passive solar landscape …
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Run-Time HEV Engine-Generator Power-Speed Optimization for Fuel Consumption and Emissions Reduction
<p>As fuel economy and emissions standards become more stringent, Plug-in Hybrid Electric Vehicles (PHEV) using series architectures are being increasingly explored. Due to the decoupling of the Internal Combustion Engine (ICE) from the road, the primary control challenge in this architecture is …
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