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 10 of 10 for “"Chemical reaction mechanisms"”.
-
Building robust chemical reaction mechanisms : next generation of automatic model construction software
Building proper reaction mechanisms is crucial to model the system dynamic properties for many industrial processes with complex chemical reaction phenomena. Because of the complexity of a reaction mechanism, computer-aided reaction mechanism generation software appeared in recent years to help …
-
Modeling and Simulation of Charged Species in Lean Methane-Oxygen Flames
Charged species occur in all combustion systems. Chemical pathways which involve ions are known to contribute to the formation of air pollutants like soot and aerosols. The appearance of electrical charges, which are closely related to the combustion process itself, offers the opportunity of their …
-
Investigation of Methods and Devices for Active Thrust Profile Control in Hybrid Rocket Engines through Oxidiser Flow Management
… the absence of a radiation model and simplified chemical reaction mechanisms. <br/><br/>The controller’s performance was evaluated under various throttle profiles (step changes, multiple steps, gradual decreases, rapid changes) and oxidiser-to-fuel (o/f) ratio profiles (constant, ramp, sine …
-
Establishing global error bounds for model reduction in combustion
… the wide range of time scales involved in chemical reactions, and the large number of species in detailed chemical reaction mechanisms in combustion. To compensate for limited available computational resources, reduced chemistry is used. However, the accuracy of these reduced chemistry …
-
Mathematical Modelling of a Tubular Reactor for Continuous Production of Synthetic Resins
… are estimated using standard procedures. The chemical kinetic data available are shown to be inadequate for use at the elevated temperatures employed in the reactor. A novel technique is therefore developed for evaluation of the high temperature urea-formaldehyde reaction data, The data are …
-
Analytical evaluation of microplasma technologies for production of hydrogen fuel from water
… electrolyte concentrations, and its non-specific reactions can produce harmful reaction byproducts. The numerous applications of on-demand H2 fuel encourage research to produce it at low cost and high efficiency despite technological limitations. Microplasma technologies utilize nonthermal and …
-
Revealing Interfacial Reactions and Charge Transfer Kinetics in Electrochemical Energy Storage and Conversion
… combustion engines. Central to these electrochemical systems is the electrode-electrolyte interface, where (electro)chemical surface reactions or intercalation reactions occur, and its thermodynamic and kinetic properties determine the energy density, power density, and lifetime of the …
-
Computational Strategies for Faster Combustion Simulations with Detailed Chemistry
… commonly use simplified versions of the chemical reaction mechanisms. But utilization of simplified chemical models comes with the associated inaccuracy while saving computational time.;In the present study the virtues of the chemical reactor network (CRN) approach are investigated and a …
-
Espectroelectroquímica UV-VIS con electrodos serigrafiados: estudio y determinación de neurotransmisores
La Tesis Doctoral que lleva por título “Espectroelectroquímica UV-Vis con electrodos serigrafiados. Estudio y determinación de neurotransmisores” desarrolla la construcción y validación de una nueva celda espectroelectroquímica con la que se ha conseguido demostrar la utilidad de la técnica en la …
-
Development of new devices for time-resolved Raman spectroelectrochemistry
La Tesis Doctoral desarrollada por D. David Ibáñez Martínez que lleva por título “Development of new devices for time-resolved Raman spectroelectrochemistry” ha sido realizada en el área de Química Analítica de la Universidad de Burgos y dirigida por los doctores Álvaro Colina Santamaría y Mª …