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Title: Influence of a wet wood particle form on the characteristics of its ignition in the high-temperature medium
Authors: Kuznetsov, Geny Vladimirovich
Syrodoy, Semen Vladimirovich
Gutareva, Nadezhda Yurievna
Keywords: a particle of wet wood; heat and mass transfer; ignition of volatiles; ignition; a particle form; древесина; тепломассоперенос; воспламенение; зажигание
Issue Date: 2020
Publisher: Томский политехнический университет
Citation: Kuznetsov G. V. Influence of a wet wood particle form on the characteristics of its ignition in the high-temperature medium / G. V. Kuznetsov, S. V. Syrodoy, N. Yu. Gutareva // Renewable Energy. — 2020. — Vol. 145. — [P. 1474-1486].
Abstract: The results of the experimental and theoretical studies of the processes of the single particles ignition of the wood biomass of various forms (a cube, a cylinder and a sphere) have been presented. According to the results of the experimental studies, it has been established that the particles form can have a fairly significant effect on the characteristics and conditions of ignition. It has been shown that the wood particles in the form of a sphere are ignited much faster than cylindrical and cubic ones (ignition delay times are less by 56%). Such a tendency is maintained for particles sizes from 1 · 10-3?m to 3 · 10-3?m. According to the results of the experiments, the mathematical model for ignition of a particle of wet wood biomass has been formulated, taking into account the joint occurrence of the main processes of the thermal preparation (radiation-convective particle heating, evaporation of water, thermal decomposition of the organic part of the fuel, output, ignition and combustion of gaseous pyrolysis products, ignition of the char residue).
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