Effect of O2/CO2ratio on stability and near field structure of oxyfuel jet diffusion flames at atmospheric pressure.

Muhammad Bukar; Suman Basnet; Taesung Kim; Gaetano Magnotti

doi:10.2514/6.2022-0640

Effect of O2/CO2ratio on stability and near field structure of oxyfuel jet diffusion flames at atmospheric pressure.

Muhammad Bukar, Suman Basnet, Taesung Kim, Gaetano Magnotti

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Scopus citations

Abstract

This paper presents an experimental study on the stability and structure of non-premixed CO2 diluted oxyfuel jet flames. DSLR imaging and OH Planar Laser-Induced Fluorescence (PLIF) were used to investigate the nearfield structure of a series of methane jet flames. Three oxidizer compositions (O2/CO2 ratios of 50/50, 40/60, and 32/68) were considered for a fixed co-flow velocity of 0.35 m/s. The PLIF Images were post-processed using MATLAB to obtain OH layer thickness, flame attachment height, and radius. Results show that increasing the CO2 level in the co-flow leads to a reduction in the OH layer thickness and sooting propensity. Both attachment radius and height were found to increase with increased CO2 content in the oxidizer. Furthermore, it was also observed that the flame attachment radius decreased as jet velocity increased while the flame attachment height tended to increase with higher jet velocity.

Original language	English (US)
Title of host publication	AIAA SCITECH 2022 Forum
Publisher	American Institute of Aeronautics and Astronautics
DOIs	https://doi.org/10.2514/6.2022-0640
State	Published - Jan 3 2022

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title = "Effect of O2/CO2ratio on stability and near field structure of oxyfuel jet diffusion flames at atmospheric pressure.",

abstract = "This paper presents an experimental study on the stability and structure of non-premixed CO2 diluted oxyfuel jet flames. DSLR imaging and OH Planar Laser-Induced Fluorescence (PLIF) were used to investigate the nearfield structure of a series of methane jet flames. Three oxidizer compositions (O2/CO2 ratios of 50/50, 40/60, and 32/68) were considered for a fixed co-flow velocity of 0.35 m/s. The PLIF Images were post-processed using MATLAB to obtain OH layer thickness, flame attachment height, and radius. Results show that increasing the CO2 level in the co-flow leads to a reduction in the OH layer thickness and sooting propensity. Both attachment radius and height were found to increase with increased CO2 content in the oxidizer. Furthermore, it was also observed that the flame attachment radius decreased as jet velocity increased while the flame attachment height tended to increase with higher jet velocity.",

author = "Muhammad Bukar and Suman Basnet and Taesung Kim and Gaetano Magnotti",

note = "KAUST Repository Item: Exported on 2022-01-11 Acknowledgements: The work presented in this paper is funded by King Abdullah University of Science and Technology (KAUST)",

year = "2022",

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day = "3",

doi = "10.2514/6.2022-0640",

language = "English (US)",

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T1 - Effect of O2/CO2ratio on stability and near field structure of oxyfuel jet diffusion flames at atmospheric pressure.

AU - Bukar, Muhammad

AU - Basnet, Suman

AU - Kim, Taesung

AU - Magnotti, Gaetano

N1 - KAUST Repository Item: Exported on 2022-01-11 Acknowledgements: The work presented in this paper is funded by King Abdullah University of Science and Technology (KAUST)

PY - 2022/1/3

Y1 - 2022/1/3

N2 - This paper presents an experimental study on the stability and structure of non-premixed CO2 diluted oxyfuel jet flames. DSLR imaging and OH Planar Laser-Induced Fluorescence (PLIF) were used to investigate the nearfield structure of a series of methane jet flames. Three oxidizer compositions (O2/CO2 ratios of 50/50, 40/60, and 32/68) were considered for a fixed co-flow velocity of 0.35 m/s. The PLIF Images were post-processed using MATLAB to obtain OH layer thickness, flame attachment height, and radius. Results show that increasing the CO2 level in the co-flow leads to a reduction in the OH layer thickness and sooting propensity. Both attachment radius and height were found to increase with increased CO2 content in the oxidizer. Furthermore, it was also observed that the flame attachment radius decreased as jet velocity increased while the flame attachment height tended to increase with higher jet velocity.

AB - This paper presents an experimental study on the stability and structure of non-premixed CO2 diluted oxyfuel jet flames. DSLR imaging and OH Planar Laser-Induced Fluorescence (PLIF) were used to investigate the nearfield structure of a series of methane jet flames. Three oxidizer compositions (O2/CO2 ratios of 50/50, 40/60, and 32/68) were considered for a fixed co-flow velocity of 0.35 m/s. The PLIF Images were post-processed using MATLAB to obtain OH layer thickness, flame attachment height, and radius. Results show that increasing the CO2 level in the co-flow leads to a reduction in the OH layer thickness and sooting propensity. Both attachment radius and height were found to increase with increased CO2 content in the oxidizer. Furthermore, it was also observed that the flame attachment radius decreased as jet velocity increased while the flame attachment height tended to increase with higher jet velocity.

UR - http://hdl.handle.net/10754/674900

UR - https://arc.aiaa.org/doi/10.2514/6.2022-0640

U2 - 10.2514/6.2022-0640

DO - 10.2514/6.2022-0640

M3 - Conference contribution

BT - AIAA SCITECH 2022 Forum

PB - American Institute of Aeronautics and Astronautics

ER -

Effect of O2/CO2ratio on stability and near field structure of oxyfuel jet diffusion flames at atmospheric pressure.

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