Quantitative measurement of the stability of a pulverized coal fired flame through digital image processing and statistical analysis

Xu, Weicheng; Yan, Yong; Huang, Xiaobin; Hu, Yonghui

doi:10.1016/j.measurement.2022.112328

Cited by 8 publications

(1 citation statement)

References 37 publications

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“…These technologies are constantly being improved [3][4][5][6][7][8][9]. The combustion process should proceed efficiently, meaning the stability of combustion conditions is ensured and the emissions of the resulting pollutants are within the ranges of applicable standards.…”

Section: Introductionmentioning

confidence: 99%

Application of Fuzzy Neural Networks in Combustion Process Diagnostics

Grądz,

Wójcik,

Gromaszek

et al. 2023

Energies

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Coal remains one of the key raw materials used in the energy industry to generate electricity and heat. As a result, diagnostics of the combustion process is still an important topic of scientific research. Correct implementation of the process allows the emission of pollutants into the atmosphere to be kept at a compliant level. Therefore, it is important to conduct the process in a manner that will not exceed these standards. A preliminary analysis of the measurement signals was carried out, and signal predictions of flame intensity changes were determined using the autoregressive moving average (ARMA) model. Different fuzzy neural network architectures have been investigated. Binary and multi-class classifications of flame states were conducted. The best results were obtained from the ANFIS_grid partition model, producing an accuracy of 95.46% for binary classification and 79.08% for multi-class classification. The accuracy of the recognition of flame states and the high convergence of the determined predictions with measurement signals validate the application of the proposed approach in diagnosing or controlling the combustion process of pulverized coal and its mixtures with biomass. Expert decisions determine the range of acceptable states.

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