3D mapping of polycyclic aromatic hydrocarbons, hydroxyl radicals, and soot volume fraction in sooting flames using FRAME technique

Chorey D, Kögl M, Boggavarapu P, Bauer F, Zigan L, Will S, Ravikrishna RV, Deshmukh D, Mishra YN (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Applied Physics B-Lasers and Optics Springer Verlag (Germany)

Book Volume: 127

Article Number: 147

Journal Issue: 11

DOI: 10.1007/s00340-021-07692-9

Abstract

We report the three-dimensional (3D) mapping of polycyclic aromatic hydrocarbons (PAHs), soot, and hydroxyl radicals (OH) in ethylene/air diffusion flames. A structured illumination-based frequency recognition algorithm for multiple exposures (FRAME) approach is combined with sample translation to intersect the flame in several two-dimensional planes. The FRAME technique has been used for recording a snapshot of multiple species on a single camera. It relies on extracting the amplitude of spatial modulation of two or more probed species encoded on a single sub-image. Here, the FRAME technique is first applied for simultaneous imaging of PAH by laser-induced fluorescence (PAH-LIF) and soot by laser-induced incandescence (LII). Sequentially, it is employed for simultaneous mapping of OH-LIF and soot-LII. The LII signal is converted to absolute soot volume fraction (fv) maps using a line-of-sight light extinction measurement. Finally, we have demonstrated the approach for layer-wise 2D imaging of soot volume fraction and averaged 3D mapping of multiple species.

Authors with CRIS profile

Matthias Kögl Lehrstuhl für Technische Thermodynamik (LTT) Florian Bauer Lehrstuhl für Technische Thermodynamik (LTT) Lars Zigan Lehrstuhl für Technische Thermodynamik (LTT) Stefan Will Lehrstuhl für Technische Thermodynamik (LTT) Yogeshwar Nath Mishra Lehrstuhl für Technische Thermodynamik (LTT)

Involved external institutions

Indian Institute of Technology Indore (IITI) / भारतीय प्रौद्योगिकी संस्थान इंदौर IN India (IN) Indian Institute of Science (IISc) IN India (IN)

How to cite

APA:

Chorey, D., Kögl, M., Boggavarapu, P., Bauer, F., Zigan, L., Will, S.,... Mishra, Y.N. (2021). 3D mapping of polycyclic aromatic hydrocarbons, hydroxyl radicals, and soot volume fraction in sooting flames using FRAME technique. Applied Physics B-Lasers and Optics, 127(11). https://doi.org/10.1007/s00340-021-07692-9

MLA:

Chorey, Devashish, et al. "3D mapping of polycyclic aromatic hydrocarbons, hydroxyl radicals, and soot volume fraction in sooting flames using FRAME technique." Applied Physics B-Lasers and Optics 127.11 (2021).

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