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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 73 for “"chemical kinetic"”.
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Automatic Generation and Analysis of Chemical Kinetic Mechanisms
… processes in the world are controlled by chemical kinetics, from the combustion of fuels in engines, the production of polymers, the electrochemistry of batteries to biological processes. However, many if not most overall chemical processes do not occur in a single step reaction between …
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Model simplification of chemical kinetic systems under uncertainty
… on the reduction and simplification of chemical kinetics mechanisms. Chemical kinetics simulations of complex fuels are very computationally expensive, especially when combined with transport, and so reduction or simplification must be used to make them more tractable. Existing …
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Accelerated Bayesian experimental design for chemical kinetic models
… is broadly applicable, it is demonstrated on a chemical kinetic system with strong nonlinearities. In particular, the Arrhenius rate parameters in a combustion reaction mechanism are estimated from observations of autoignition. Results show multiple order-of-magnitude speedups in both …
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Chemical kinetic investigation of a commercial batch reactor process
The aim of this investigation was to study the chemical reactions occurring during the batchwise production of a butylated melamine-formaldehyde resin, in order to optimise the efficiency and economics of the batch processes. The batch process models are largely empirical in nature as the reaction …
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Chemical kinetic studies of titanium silicide chemical vapor deposition
Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:48:04Z Item is restricted indefinitely.
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Data-driven chemical kinetic models of operationally relevant jet fuels
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-08-01
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Efficient development and uncertainty propagation of aviation fuel chemical kinetic models
… methodology for the rapid development of reduced chemical kinetic mechanisms for jet fuels, with a focus on sustainable aviation fuels (SAFs). The framework is designed to balance model accuracy, computational efficiency, and experimental requirements for quick development times and application in …
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Automatic Generation of Chemical Kinetic Models for Biofuel Oxidation and Pyrolysis
… biofuel combustion and pyrolysis chemistry with chemical kinetic models allows for high-throughput evaluation of their performance under various conditions. These models, typically comprising hundreds of species and thousands of elementary reactions, provide quantitative predictions for the …
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Automatic Generation of Chemical Kinetic Models including Macromolecules in Multiphase Systems
Detailed chemical kinetic models are indispensable tools for unraveling the complexities of industrial and environmental chemistry systems. Many important industrial and environmental chemistries involve thousands of species and hundreds of thousands of complex pathways, which are difficult to …
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Chemical kinetic modeling of oxidation of hydrocarbon emissions in spark ignition engines
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1994.
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Application of a jet fuel database in the development of chemical kinetic models
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2026-12-01
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Chemical kinetic modeling of oxy-fuel combustion of sour gas for enhanced oil recovery
… when combined with enhanced oil recovery (EOR). Chemical kinetic modeling can help to assess the potential of this approach. In this thesis, a detailed chemical reaction mechanism for oxy-fuel combustion of sour gas has been developed and applied for studying the combustion behavior of sour gas …
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Characterization and Chemical Kinetic Analysis of the Ignition of Representative Conventional and Bio-Derived Fuels
… by means of reflected shock wave, leading to chemical reactions and subsequent ignition of a test mixture of fuel and oxidizer.</p> <p>Experimental results are compared with chemical kinetic model simulations and the models are analyzed to gain insight on leading chemical pathways. The …
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Application of chemical kinetic modeling to improve design and performance criteria for a practical incineration system
In this study, detailed thermo-chemical kinetics with networked ideal reactor model were applied to simulate a practical combustion system -the Secondary Combustion Chamber (SCC) of the Rotary Kiln incineration Simulator (RKIS) at the EPA facility at Research Triangle Park, NC. The networked ideal …
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C.A.R.S. temperature measurements and chemical kinetic modelling of autoignition in a methanol-fuelled internal combustion engine
… conditions, are then used as input data for chemical kinetic modelling of end-gas autoignition. Five published mechanisms (Grotheer et al 1992, Grotheer and Kelm 1989, Norton and Dryer 1989, Dove and Warnatz 1983, .and Esser and Warnatz 1987) are used in the autoignition study, and the …
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Measurement of ignition delay time of jet fuels in shock tube for the development of the chemical kinetic mechanism
Reliable yet tractable kinetic mechanisms for real aviation fuels are essential for predictive simulations of advanced combustors, and this thesis develops an F-24–specific HyChem mechanism by combining new experiments in a high-pressure shock tube with regularization-constrained, data-driven …
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Autoignition and flame speed of premixed liquefied petroleum gas in a rapid compression machine: experimental results and reduced chemical kinetic mechanism
… are further complicated by the wide range of chemical reactivity in LPG, particularly in international markets. In this study, a rapid compression machine (RCM) was used to characterize the effects of variation in LPG fuel reactivity, equivalence ratio, and exhaust gas recirculation (EGR) on …
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Ignition delay of oxygenated fuel droplets: development of a 1 second drop tower and initial 1-g test results
… physical properties, which are governed by the chemical makeup of the fuel, have an adverse affect on NO<sub>x</sub> production. But until that time when a thorough chemical kinetic mechanism is developed for biodiesel, a means in which to lower NO<sub>x</sub> emissions will continue to elude …
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