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 “"stirred reactors"”.
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Linear Stability Analysis of a Rijke Tube and Modeling of Turbulent Combustion Using Dynamic Well-Stirred Reactors
… part of this work, networks of dynamic well-stirred reactors are used to model qualitative behavior observed in turbulent combustion. First a model of dynamic well-stirred reactor is derived, and then several reactors are coupled together by recirculation. The dynamics of the various models …
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An experimental study of forced ventilation glovebox fires
… fires have been successfully modelled as well-stirred reactors. Results showed that overall containment was achieved under normal glovebox conditions. Added ventilation opening tests, however, showed that these scenarios would lead to a loss of containment. Nevertheless, under no conditions did …
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Real-Time Prediction of Lean Blowout using Chemical Reactor Network
… The approach is tested using a laboratory jet-stirred reactor (JSR), operating on methane at near atmospheric pressure. The CRN represents the reactor as three perfectly stirred reactors (PSRs) in series with a recirculation pathway, the model inputs include real-time reactor temperature …
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Power dissipation and power correlations for a retreatblade impeller under different baffling conditions
Glass-lined stirred reactors and tanks are commonly used in the pharmaceutical industry because of their corrosion resistance, ease of cleanliness and minimization of product contamination. Most industrial glass-lined tank reactors are provided with a torispherical tank bottom and a retreat curve …
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A new diagnostics tool for water injected gas turbines - emissions monitoring and modeling
… chemical reactor network consisting of perfectly stirred reactors and plug flow reactors to represent the turbine combustion in both the primary and dilution zones. Changes in the measured emissions of certain species combined with a detailed kinetics model are used to indicate the onset of …
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Detailed Kinetic Modelling of the Oxidation and Combustion of Large Hydrocarbons Using an Automatic Generation of Mechanisms
… iso-octane and n-decane oxidation in jet-stirred reactors at a wide range of temperatures and equivalence ratios are generally well reproduced. Sensitivity and reaction flow analyses were performed for shock tube and jet-stirred reactor environments, respectively, in an attempt to identify …
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Development and assessment of a soot emissions model for aircraft gas turbine engines
… are integrated within a network of perfectly-stirred reactors and shown to capture the typical evolution of soot inside a gas turbine combustor, with soot formed in the early parts of the combustor and then oxidized. The soot model shows promising results as its emissions estimates are within …
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The Removal of Trace Organic Impurities from Water using Activated Charcol Cloth
… be neglected in a sufficiently turbulent, well-stirred reactor. Electron micrographs of the cloth surface had indicated that most of the porous structure of the cloth consists of micropores. Hence, phenol could only adsorb onto the surface, or into longitudinal surface corrugations. Therefore, …
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Stochastic modelling of silicon nanoparticle synthesis
… presented which solves networks of perfectly stirred reactors with a population balance model using the stochastic method. The algorithm is tested in some simple network configurations, which are used to identify methods through which error in the stochastic solution may be reduced. It is …
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Power dissipation and mixing time in a partially filled pharmaceutical reactor equipped with a retreat-blade impeller at different fill ratios
Glass-lined, stirred reactors and tanks are of significant industrial importance, especially in the pharmaceutical and fine chemical industries. These reactors are manufactured with a "glass-lining," i.e., a glass layer applied to the agitator, the inside of the reactor/tank and to any of the …
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Investigation of a prototype industrial gas turbine combustor using alternative gaseous fuels
… reactor network calculations based on perfectly stirred reactors (PSR) and plug flow reactors (PFR). Lean stability limit experiments showed how the RPL equivalence ratio could be optimized to lower the lean blowout limit. Increasing the RPL equivalence ratio was shown to extend the lean blowout …
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Predicting Soot Emissions with Advanced Turbulent Reacting Flow Modelling
… the thesis, a new approach based on Incompletely Stirred Reactor Network (ISRN) modelling is presented. The aim is to develop an emissions screening tool that can be utilised during the design phase of combustors. ISRN modelling simplifies calculations so that parametric studies with very complex …