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 12 of 12 for “"ATJ"”.
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Chemical sputtering studies of lithiated ATJ graphite
… to understand the complex system of lithiated ATJ graphite, chemical sputtering measurements of plain and lithiated ATJ graphite have been conducted in IIAX (Ion-surface InterAction eXperiment) facility. Chemical sputtering of graphite is dependent on the ion energy and substrate temperature, …
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Environmental and economic assessment of transportation fuels from municipal solid waste
… alcohol synthesis and alcohol-to-jet upgrading (ATJ MD). Expanded system boundaries are used to capture the change in existing MSW use and disposal, and parameter uncertainty is accounted for with Monte Carlo simulations. The median lifecycle GHG emissions are calculated to be 32.9, 62.3 and 52.7 …
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Analysis of Double Cropping to Expand Sustainable Aviation Fuel Production in the United States
… and fatty acids (HEFA) and alcohol to jet (ATJ) via ethanol pathways for conversion. The maximum SAF potential was quantified with current land use considerations, and showed that today, double cropping can increase SAF production by 268% to 464% compared to single cropping alone, depending …
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Ignition delay study of next generation alternative jet fuels in a rapid compression machine
… or surrogate components. Amyris Farnesame, Gevo ATJ(C-1), blend of tetradecane and trimethylbenzene (C-2), blend of JP-5 and farnesane (C-3), blend of Sasol IPK and Gevo ATJ (C-4), blend of decane and trimethylbenzene (C-5) are tested through the study. A rapid compression machine at the …
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Effects of O-Ring Elastomers with Conventional and Synthesized Aviation Fuels with a Novel Elastomer Dynamic Compression System
… reaction with conventional Jet A, HEFA, ATJ, and synthetic aromatic kerosene individually along with blends of synthetic fuels with Jet A. Additionally, the complex pathway of fuel into the O-ring is investigated in conjunction with compression effects on elastomer swell.The conclusion of …
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Autoignition study of next generation aviation fuels and components
… similar test conditions. C-1, also known as Gevo ATJ (Alcohol to Jet fuels), is comprised of two heavily branched alkanes; isododecane and isocetane. Due to this irregular composition, the fuel has an extremely low cetane number (~16), and an extensively long ignition delay time at most of the …
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Measurement of ignition delay time of jet fuels in shock tube for the development of the chemical kinetic mechanism
… distinct character of alternative fuels such as ATJ and CycloSAF. The UIUC shock tube is re-instrumented with a tailored driver and an endwall pressure transducer, enabling robust measurement of both overall and first-stage ignition delays for F-24 at 5–20 bar down to ~650–700 K and providing …
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Ignition and propagation mechanisms of spray flames
… – Jet A and a renewable alternative, ATJ-8 – exhibited similar flame speed behaviour due to changes in droplet size in each of the modes identified: the droplet, inter-droplet, and gaseous-like propagation modes. Concentrated reactions around large droplets found in lean conditions …
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Techno-economic analysis and environmental assessment of isobutene, sustainable aviation fuel, omega-3 and omega-6 oils, and sophorolipid production in integrated sugarcane biorefineries
… performance compared to other Alcohol-to-Jet (AtJ) pathways, such as bioethanol or isobutanol, due to the low production cost, low energy demands associated with IBN purification, and a more efficient oligomerization process. In comparison, the MSP of 1G2G IBN ($1.90/L) is at the low end of the …
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Plasma Facing Components conditioning techniques and their correlation with plasma performance in the National Spherical Torus eXperiment Upgrade (NSTX-U)
… Spectroscopy (XPS) in-situ. Several ATJ graphite samples were exposed to boronization and multiple plasma discharges and MAPP was used to monitor their surface chemistry at the end of each day of plasma operations (around 10 to 20 plasma shots). According to the XPS data, boronization …
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Towards sustainable biofuels production for aviation and maritime
L'abstract è presente nell'allegato / the abstract is in the attachment
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Autoignition and combustion chemistry of kerosene type fuels and components
The research in this thesis is focused on the combustion of conventional (petroleum-based) jet fuels, alternative (synthetic or bio-derived) fuels, and pure fuel components at low combustion temperatures (500 – 725K) and under stoichiometric to fuel lean conditions. These conditions are of interest …