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

Mashruk, Syed, Marsh, Richard, Runyon, Jon, Morris, Steve and Bowen, Phil 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: 17 Mar 2021 02:47
URI: http://orca.cf.ac.uk/id/eprint/136070

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