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 21 for “"Fuel technology"”.
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Reducing car fleet emissions through fuel technology / policy alternatives for Sweeden
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1995.
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The octane requirement of spark ignition engines
… thesis covers the fundamentals of refining and fuel technology, engine technology as regards parameters which influence knock and the results of engine tests. Definitions of octane number and the interpretation of the system developed to establish these numbers using the CFR engine are given. …
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Managing the transition toward self-sustaining alternative fuel vehicle markets : policy analysis using a dynamic behavioral spatial model
… to bolster the transition to alternative fuel vehicles (AFVs) is a formidable challenge as demonstrated by historical failed attempts. The transition to new fuels occurs within a dynamically complex system with many distributed actors, long time delays, several important feedback …
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Hydrogen as an energy product from agriculturally produced sugars and starches in South Africa
Bio-fuels have a significant role to play in the South African energy economy. They have a potential to impact positively on the quality of life of a large number of people while providing environmental gains geared at addressing environmental challenges such as global warming. Technologies to …
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Internal Combustion Engine Performance using Aluminum as Fuel
… and energy-dense storage mechanism for hydrogen fuel. One of the challenges facing aluminum-fuel technology is the sensitivity of hydrogen fuel cells to temperature, humidity, vibrations, and particulate contamination. This paper explores internal combustion engines as an alternative energy …
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A study of the physics and chemistry of knock in modern SI engines and their relationship to the octane tests
… MON) tests were established in 1928 such that a fuel with a higher RON and MON is less likely to knock than a fuel with a lower value. However, engine and fuel technology has evolved since 1928, and thus the relevancy of these tests for modem engines needed to be evaluated. First, the study …
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Examination of the conversion of the U.S. submarine fleet from highly enriched uranium to low enriched uranium
… U.S. Navy for submarine propulsion are currently fueled by highly enriched uranium (HEU), but HEU brings administrative and political challenges. This issue has been studied by the Navy before, and promising new fuel technology developments, combined with new motivations, warrant a fresh look at …
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A hydrogen fueling station in 2005?-- will it happen : how do we get from here to there?
Fuel cell vehicles appear promising for major reductions in local emissions and significant decreases in greenhouse gas emissions from the transportation sector. Efficient fuel cells require hydrogen fuel. If the hydrogen is produced from primary fossil fuel sources, the greenhouse gas benefits are …
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Benchmarking of the MIT High Temperature Gas-cooled Reactor TRISO-coated particle fuel performance model
MIT has developed a Coated Particle Fuel Performance Model to study the behavior of TRISO nuclear fuels. The code, TIMCOAT, is designed to assess the mechanical and chemical condition of populations of coated particles and to determine the failure probability of each of the structural coating …
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Characterization and Chemical Kinetic Analysis of the Ignition of Representative Conventional and Bio-Derived Fuels
<p>Fossil fuels are the main energy source in the world. However, they are responsible for negative environmental impacts, such as global climate change and rising sea levels. Biofuels are an environmentally friendly alternative which can substitute fossil fuels without major engine modications, …
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Issues on Clean Diesel Combustion Technology Using Supercritical Fluids: Thermophysical Properties and Thermal Stability of Diesel Fuel
<p>The clean diesel combustion technology using supercritical fluids is aimed to both improve fuel economy and reduce harmful emissions. This novel process involves preparation, injection and combustion of supercritical fuel/diluents mixtures. Design and development of this new process require a …
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Evaluating reactivity and sorptivity of fly ash for use in concrete construction
… removed, air-classified, co-combustion, oxy-fuel technology); Portland Cements (PCs) from five UK sources with various properties (strength classes 32.5 R, 42.5 N and 52.5 N); laboratory grade hydrated and quick limes; and three commercial AEAs and a standard laboratory grade reagent …
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Studies in Advanced Oxy-combustion Technologies
… consumption, primarily from increased fossil fuel use, has raised strong concerns over the current energy infrastructure, the emissions of particulate matter, CO, SO2, and NOx, as well as global warming due to the emission of CO2. Improving combustion efficiency and reducing combustion …
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Novel Ignition Approaches for Improved Hydrogen Ignition
The first study examined H₂ double injection ignition with varying dwell times. Experiments utilized a constant-volume combustion chamber (CVCC) with optical access, replicating compression-ignition engine conditions. Baseline environment: 23.8kg/m³ gas density, 21vol.% O₂, 1000K core temperature. …
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