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Detailed Numerical Simulation for Optimization of Radiation Efficiency of Porous Burners

Wieland, Christoph; Weinbrecht, Petra; Weis, Christof; Habisreuther, Peter; Trimis, Dimosthenis

Abstract (englisch):
In porous burners, premixed combustion of gaseous fuels inside the cavities of an open-pore ceramic matrix heats the solid material to temperatures of 1400 °C, which leads to the emission of electromagnetic radiation with its intensity maximum at infrared light. The net thermal radiation emission can be used for efficient, fast and uniform heat transfer in various technical applications. Improving radiation efficiency correlates to increasing thermal radiation flux at constant thermal power, implicating a potential for reduction of fuel consumption and associated emissions for a given application. Additive manufacturing techniques offer new opportunities in the design of ceramic structures. However, the design of an optimized structure requires detailed knowledge of processes and conditions inside the porous matrix during operation, the experimental determination of which is complex and challenging. Inside the porous burner, chemical combustion reactions coincide with complex interaction between thermo-physical transport processes that occur within solid and gaseous phase, and across phase boundary. Flow, heat release and resulting heat flows influence each other. ... mehr

Zugehörige Institution(en) am KIT Engler-Bunte-Institut (EBI)
Institut für Technische Chemie (ITC)
Publikationstyp Proceedingsbeitrag
Publikationsjahr 2021
Sprache Englisch
Identifikator KITopen-ID: 1000139418
HGF-Programm 38.05.01 (POF IV, LK 01) Anthropogenic Carbon Cycle
Erschienen in 30. Deutscher Flammentag, Deutsche Sektion des Combustion Institutes und DVV/VDI-Gesellschaft Energie und Umwelt Dinkelacker, Friedrich; Pitsch Heinz; Scherer, Viktor (eds.)
Veranstaltung 30. Deutscher Flammentag (2021), Hannover, Deutschland, 28.09.2021 – 29.09.2021
Seiten 1066-1074
Projektinformation ECCO (EU, H2020, 768692)
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