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.
Results
Showing 1 to 20 of 86 for “"Liquid Fuels"”.
-
Combustion characteristics of alternative liquid fuels
… Esters (PME) and blends of PME with conventional fuels are determined using the jet-wall stagnation flame configuration. The same technique is also used to measure the laminar flame speed of diesel, Jet-A1, n-heptane, acetone, methane and methane/acetone. The spray atomization characteristics of a …
-
Injection of liquid fuels in supersonic airstreams
An experimental study of the ignition of liquid fuels injected transverse to a hot supersonic (M=1.65) air stream was conducted. The liquids considered were kerosene, CS₂ and water as an inert control. The major variables were: air stagnation temperature in the range 1500 to 2300ºF, injectant flow …
-
The combustion of droplets of heavy liquid fuels
Thesis: Sc. D., Massachusetts Institute of Technology, Department of Chemical Engineering, 1954
-
Nuclear tanker producing liquid fuels from air and water
… systems have the potential to create a shipboard liquid fuel production system that will ease the burdened cost of supplying fuel to deployed naval ships and aircraft. Based upon historical data provided by the US Navy (USN), the tanker ship must supply 6,400 BBL/Day of fuel (JP-5) to accommodate …
-
Selectable supply fuel measurement system for alternative liquid fuels testing
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-08-01
-
Designing Electrocatalysts for the Production and Oxidation of Liquid Fuels
… it is paramount to cease reliance on fossil fuels to meet global energy demands. While the cost of electricity from renewable sources, such as solar and wind, continues to decrease and has even fallen below that of fossil fuels since 2014, these renewable energy sources suffer from …
-
Catalytic biomass conversion and upgrading into platform chemicals and liquid fuels
… biodiesel and premium hydrocarbon kerosene/jet fuels is described in this dissertation. The chief motivation of using annually renewable biomass as the source of chemical building blocks and transportation fuels is to reduce societal dependence on depleting fossil fuels. Towards this goal, …
-
Fuel flexible clean combustion of liquid fuels by a novel twin fluid atomization
… energy and environmental concerns. Renewable fuels, such as biofuels have attracted significant attention as potential sources to achieve energy security and to tackle environmental issues. However, these alternatives haven’t yet been fully utilized because much of the existing combustion …
-
Environmental and economic tradeoffs of feedstock usage for liquid fuels and power production
… energy return on investment for alternative jet fuels, and 2) quantifying the tradeoffs associated with the aviation and non-aviation use of agricultural residues. We quantify energy return on energy investment (EROI) as one metric for the sustainability of alternative jet fuel production. …
-
Synthesis and characterisation of pillared clay catalysts for hydro-cracking of heavy liquid fuels
… their performance in hydrocracking coal derived liquids in a conventional microbomb reactor (carried out at Imperial College). Nearly all catalysts displayed better conversions when reused. The chromia pillared montmorillonite CM3 and the tin oxide pillared laponite SL2a showed the best …
-
Optimization of a Single Reactor Process for the Selective Conversion of Coal to Liquid Fuels
The conversion of synthesis gas to desirable liquid fuels in gasoline and diesel range in a single reactor process with simultaneous use of FT and cracking catalysts was investigated in this dissertation. Co-based catalyst and ZSM-5 were used as a FT and cracking catalysts, respectively. The …
-
The catalytic conversion of low chain length hydrocarbons to liquid fuels using ion exchange resin
… in the polymerization of a c 4 -mixture to liquid fuels has shown that the catalyst is highly active, deactivates at a slow rate and selectively produces mainly dimers. Macropore diffusion resistance strongly influences the overall rate of the reaction. An increase in liquid production rate …
-
Investigation of atomization mechanisms and flame structure of a twin-fluid injector for different liquid fuels
… precipitated worldwide research on alternative fuels. Biodiesel, a popular renewable energy source, is produced from the transesterification process of source oils such as vegetable oil (VO) requiring processing cost and energy input. However, highly viscous glycerol produced as the waste …
-
Assessing the transportation of liquid fuels in South Africa using multi-criteria decision analysis: a conceptual framework and case study
… component of the energy sector in the form of liquid fuel. Most of this energy is consumed for transportation purposes. The energy consumption of the transport sector in South Africa is large, totalling around 28% of Total Final Consumption (TFC) in the national energy balances. The bulk of …
-
A political economy analysis of liquid fuel production incentives in South Africa
… is to analyse the development of South Africa's liquid fuels industry from 1930s to the present and the various ways in which the state has extended subsidies and other measures of support to liquid fuels producers. The nature and extent of government support to the South African liquid fuels …
-
Modeling of char oxidation in fluidized bed biomass gasifiers : effects of transport and chemical kinetics
Technologies for the conversion of biomass to liquid fuels are important to develop because the demand for liquid fuels remains unchanged even with the necessity of limiting dependence on fossil fuels. Fluidized Bed Biomass Gasification (FBBG) is one such technology that can perform the initial …
-
Biofuel supply chain challenges and analysis
Liquid fuels such as gasoline and diesel are traditionally derived from petroleum. Since petroleum has the potential to be exhausted, there is interest in large scale production of fuels from renewable sources. Currently, ethanol and bio diesel are liquid fuels that are mainly derived from field …
-
Characterization of resins in alternative fuel mixtures
… the actual group-type distribution in the liquid fuel. A separation method based on liquid column chromatography was developed, which divides liquid fuels into eight distinct and minimally overlapping chemical classes: five non-polar (saturated, mono-, di-, tri-, and polynuclear aromatics), …
-
Technoeconomic modelling of coal conversion processes for liquid fuel production
… interest has been shown in the production of liquid fuels from alternative sources. In particular processes utilizing coal as the feedstock have received considerable interest. These processes can be divided into direct and indirect liquefaction and pyrolysis. This thesis describes the …
Page 1 of 5