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Fractal Characteristics of Thin Thermal Mixing Layers in Coal-Fired Flame

Bai, Xiaojing, Lu, Gang, Yan, Yong (2017) Fractal Characteristics of Thin Thermal Mixing Layers in Coal-Fired Flame. Journal of Combustion Science and Technology, 3 . pp. 225-230. ISSN 1006-8740. (doi:10.11715/rskxjs.R201606021) (KAR id:63478)

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Abstract

The images of turbulent flame were acquired by using a digital imaging system on an industry-scale pulverized coal-fired test rig?The fractal dimensions of thin thermal mixing layers in flame were computed through morphology-based flame image processing techniques?The effects of the ratios of primary air and secondary/tertiary air on fractal dimensions were characterized?The results presented in this work show that the variations of fractal dimension are closely related to the ratio changes of primary air and secondary/tertiary air. Therefore?the fractal dimensions of flame thin thermal mixing layers can be used as an important indicator for the control and optimization of a combustion process.

Item Type: Article
DOI/Identification number: 10.11715/rskxjs.R201606021
Uncontrolled keywords: coal-fired flame; thin thermal mixing layers; fractal dimension; flame image; temperature gradient
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA165 Engineering instruments, meters etc. Industrial instrumentation
T Technology > TA Engineering (General). Civil engineering (General) > TA1637 Image processing
T Technology > TD Environmental technology. Sanitary engineering
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Gang Lu
Date Deposited: 19 Sep 2017 10:16 UTC
Last Modified: 16 Feb 2021 13:48 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/63478 (The current URI for this page, for reference purposes)
Lu, Gang: https://orcid.org/0000-0002-9093-6448
Yan, Yong: https://orcid.org/0000-0001-7135-5456
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