CHEMILUMINESCENCE DYNAMICS MEASUREMENTS OF DIFFUSION FLAME USING LIGHT CELL AND HIGH-SPEED CAMERA

Salem A.  Farhat; Samah Alghoul; Amira A.  Ben Ghwaila; Mariam A.  Turkman

doi:10.66411/jer.v22i.286

Authors

Salem A. Farhat Department of Mechanical and Industrial Engineering, Faculty of Engineering, University of Tripoli,–Libya Author
Samah Alghoul Department of Mechanical and Industrial Engineering, Faculty of Engineering, University of Tripoli Author
Amira A. Ben Ghwaila Department of Mechanical and Industrial Engineering, Faculty of Engineering, University of Tripoli Author
Mariam A. Turkman Department of Mechanical and Industrial Engineering, Faculty of Engineering, University of Tripoli Author

DOI:

https://doi.org/10.66411/jer.v22i.286

Keywords:

Diffusion Flame, Flickering, Optical System, chemiluminescence, Light Cell, CCD Camera, Combustion Instability

Abstract

Experiments have been performed to estimate flame flicker frequency of free jet propane diffusion flame. The flame was produced at atmospheric pressure with a varying fuel flow rate from a laminar to the flame blowout conditions. In order to capture global chemiluminescence, two different optical techniques have been applied to an experimental investigation into the relationship between the flicker of a diffusion flame and the fuel flow rates. In this paper, the light cell technique and the high-speed camera technique have been used. Power spectral analysis was performed to obtain the frequency mode of the flicker signal, the experimental results obtained by both techniques for image pixel analysis and spectral analysis of signals have demonstrated that the flicker of a diffusion flame mode depends on the fuel flow rate, and the results show the flame mode was in the range of 10 to 22 Hz which is in very good agreement with previous study of flicker measurements of combustion flames under the same condition

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