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Experimental Dataset: Experimental Study on the Influence of Methane-Cofiring on Pulverized Coal Flames under Air and Oxy-Fuel Conditions

Özer, Burak^RWTH* ; Maßmeyer, Anna Lisa^RWTH* ; Zabrodiec Garcia, Diego Manuel^RWTH* ; Hatzfeld, Oliver^RWTH* ; Kneer, Reinhold^RWTH*

2025

Online
DOI: 10.18154/RWTH-2025-04398
URL: https://publications.rwth-aachen.de/record/1010879/files/ReadMe.pdf
URL: https://publications.rwth-aachen.de/record/1010879/files/LDV_Profiles_40kW_AIR_OXY33_CH4_C.zip
URL: https://publications.rwth-aachen.de/record/1010879/files/Narrow_band_images_40kW_AIR_OXY33_CH4_C.zip

Einrichtungen

1. Lehrstuhl für Wärme- und Stoffübertragung (412610)

Projekte

1. DFG project G:(GEPRIS)240966705 - Experimentelle Untersuchung der Biomasseverbrennung zur Validierung numerischer Simulationen (C01) (240966705) (240966705)
2. DFG project G:(GEPRIS)215035359 - TRR 129: Oxyflame - Entwicklung von Methoden und Modellen zur Beschreibung der Reaktion fester Brennstoffe in einer Oxyfuel-Atmosphäre (215035359) (215035359)

Inhaltliche Beschreibung (Schlagwörter)
Pulverized coal swirl flame (frei) ; flame visualization (frei) ; laser Doppler velocimetry (frei)

Kurzfassung
This data publication contains the quantitative values of the narrow-band imaging and laser Doppler velocimetry measurements published in the conference article, named 'Experimental Study on the Influence of Methane-Cofiring on Pulverized Coal Flames under Air and Oxy-Fuel Conditions'. Experiments are carried out using a pilot-scale down-fired cylindrical combustion chamber equipped with a swirl burner. Studied operating conditions of flames of lignite/methane fuel mixtures have an identical thermal output of 40 kWth, with the thermal output share of methane gradually decreasing from 50 vol.% to 0 vol.% while the lignite share (Rhenish lignite) increased from 50 vol.% to 100 vol.% (self-sustained condition). To visualize flame structure and to identify reaction zones, narrow-band imaging is employed. Narrow-band flame imaging is conducted at two different wavelengths (OH* and CH* radical band heads). A detailed flow field characterization of the respective flames is conducted by two-dimensional laser Doppler velocimetry measurements. Radial profiles of axial and tangential velocities have been determined using an optical long-range laser Doppler velocimetry (LDV) system operated in backscatter mode and mounted to a traverse. Solid fuel particles are used as flow tracers. Results and the experimental conditions from the present dataset are in depth described in the conference article.

OpenAccess:
PDF
ZIP
ZIP
(additional files)

Dokumenttyp
Dataset

Format
online

Sprache
English

Interne Identnummern
RWTH-2025-04398
Datensatz-ID: 1010879

Beteiligte Länder
Germany