Tanneberger, Tom und Stathopoulos, Panagiotis (2020) Heat transfer measurements in a hydrogen-oxyfuel combustor. Experimental Heat Transfer. Taylor & Francis. doi: 10.1080/08916152.2020.1798564. ISSN 0891-6152.
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Kurzfassung
In the context of emission-free electricity generation, the authors developed a novel hydrogen-oxygen combustor, which is based on swirl-stabilized combustion technology and steam dilution. Following previous burner characterization, the current study investigates the heat transfer conditions in the combustion chamber wall. To this end, a carefully controlled co-flow of air is used to cool the combustion chamber in an annular duct, which surrounds it. Temperature measurements enable the evaluation of the heat flux from the combustor flow to the walls, local wall temperatures, and the Nusselt numbers on the hot and the cold side. The extremely high wall temperatures, caused by the H2/O2 flame, can be reduced by steam dilution down to approximately 900 K. Even better cooling could be reached by using the dilution steam as the coolant before it flows to the plenum. The Nusselt numbers at the inner combustion chamber wall are in the order of 10–50 and increase with the thermal power and the steam dilution ratio.
elib-URL des Eintrags: | https://elib.dlr.de/139565/ | ||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||
Titel: | Heat transfer measurements in a hydrogen-oxyfuel combustor | ||||||||||||
Autoren: |
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Datum: | 21 August 2020 | ||||||||||||
Erschienen in: | Experimental Heat Transfer | ||||||||||||
Referierte Publikation: | Ja | ||||||||||||
Open Access: | Ja | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Ja | ||||||||||||
In ISI Web of Science: | Ja | ||||||||||||
DOI: | 10.1080/08916152.2020.1798564 | ||||||||||||
Verlag: | Taylor & Francis | ||||||||||||
ISSN: | 0891-6152 | ||||||||||||
Status: | veröffentlicht | ||||||||||||
Stichwörter: | Heat transfer, oxy-fuel combustion, hydrogen, steam dilution | ||||||||||||
HGF - Forschungsbereich: | Energie | ||||||||||||
HGF - Programm: | Energieeffizienz, Materialien und Ressourcen | ||||||||||||
HGF - Programmthema: | keine Zuordnung | ||||||||||||
DLR - Schwerpunkt: | Energie | ||||||||||||
DLR - Forschungsgebiet: | E SP - Energiespeicher | ||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | E - Dekarbonisierte Industrieprozesse (alt) | ||||||||||||
Standort: | Cottbus | ||||||||||||
Institute & Einrichtungen: | Institut für CO2-arme Industrieprozesse | ||||||||||||
Hinterlegt von: | Klinkmüller, Maike | ||||||||||||
Hinterlegt am: | 04 Jan 2021 11:02 | ||||||||||||
Letzte Änderung: | 04 Jan 2021 11:02 |
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