Methodology and comparison of quantitative NO-LIF imaging in a bunsen burner with numerical simulation results

Mashruk, Syed, Marsh, Richard ORCID: https://orcid.org/0000-0003-2110-5744, Runyon, Jon ORCID: https://orcid.org/0000-0003-3813-7494, Morris, Steve ORCID: https://orcid.org/0000-0001-5865-8911 and Bowen, Phil ORCID: https://orcid.org/0000-0002-3644-6878 2018. Methodology and comparison of quantitative NO-LIF imaging in a bunsen burner with numerical simulation results. Presented at: 19th International Symposium on Applications of Laser and Imaging Techniques to Fluid Mechanics (LXLASER 2018), Lisbon, Portugal, 16-19 July 2018. Proceedings of the19th International Symposium on Applications of Laser and Imaging Techniques to Fluid Mechanics. Lisbon: Instituto Superior Técnico,

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Abstract

A planar laser induced fluorescence (P LIF) technique is applied to quantify nitric oxide (NO) concentration in a premixed bunsen burner with a CH4 -air flame doped with NO (up to 1300 ppm). This experimental data will be used as the calibration method for quantitative in-flame NO measurements in a high-pressure generic swirl burner at Cardiff University’s Gas Turbine Research Centre. Methodology of modelling premixed bunsen burner combustion experiment in CHEMKIN for predicting NO emissions in a wide variation of premixed methane flames is also described here. Chemical kinetics simulation results from a wide range of fuel flow rates have been compared and analysed with the experimental data in this paper. Our open bunsen burner flame experienced about 15 – 25% reduction in seeded NO level at 25mm above the burner exit. Calibration curves were obtained for both online and offline by measuring NO -PLIF intensity at varying level of NO seeding. These results from both the LIF and simulations will complement each other in subsequent works.

Item Type:	Conference or Workshop Item (Paper)
Status:	Published
Schools:	Engineering
Publisher:	Instituto Superior Técnico
ISBN:	9789892091778
Date of First Compliant Deposit:	1 November 2020
Date of Acceptance:	15 June 2018
Last Modified:	09 Nov 2022 09:32
URI:	https://orca.cardiff.ac.uk/id/eprint/136070

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