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Title
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Computational modelling of atmospheric DC discharges for CO2 conversion
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Author
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Abstract
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| In this thesis, DC plasma discharges for CO2 conversion are studied via computer modelling and experiments. Two main discharge types are considered –gliding arc (GA) and atmospheric pressure glow discharge (APGD). For the GA, a 3D computational plasma model is developed, involving the innovative reverse-vortex plasma stabilization, using simplified argon chemistry and a conceptual geometry. The model is subsequently extended into a 1:1 geometry, matching the experiment, and also including a 2D CO2 model. Furthermore, turbulent heat transfer is included in the model. The APGD reactor is studied by the means of optical emission spectroscopy (OES) and plasma modelling, showing a good agreement between the model and the experiment. The APGD is then used for CO2 conversion, and is gradually upgraded by the means of a model-experiment analysis, reaching a high conversion performance. Finally, a novel, dual-vortex reactor is developed from scratch, featuring innovative concepts for improved energy efficiency. The reactor is experimentally tested, confirming the expectations. A 3D plasma model for the reactor is developed as well. |
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Language
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English
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Publication
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Antwerpen
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Universiteit Antwerpen, Faculteit Wetenschappen, Departement Chemie
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2019
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Volume/pages
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206 p.
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Note
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Bogaerts, Annemie [Supervisor]
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Full text (publisher's version - intranet only)
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