The influence of particle size and density of pelleted samples of forest fuel on thermokinetic characteristics of pyrolysis and oxidation; Thermal Science; Vol. XXX

The influence of particle size and density of pelleted samples of forest fuel on thermokinetic characteristics of pyrolysis and oxidation; Thermal Science; Vol. XXX

Detalhes bibliográficos
Parent link:	Thermal Science Vol. XXX.— 2021.— [12 p.]
Autor Corporativo:	Национальный исследовательский Томский политехнический университет Инженерная школа энергетики Научно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова)
Outros Autores:	Kuznetsov G. V. Geny Vladimirovich, Kropotova S. S. Svetlana Sergeevna, Islamova A. G. Anastasiya Gomilievna, Lyrshchikov S. Yu. Sergey Yurievich
Resumo:	Title screen This paper presents the results of experimental studies of thermokinetic characteristics of pyrolysis and oxidation of pine needles, taking into account the influence of particle size and density of forest fuel in pelleted samples. The sample densities range within 206-955 kgm-3 (i.e. from typical sample densities to average ones for pressed pelleted samples), and the component particle sizes amount to 60-140 ?m. The range of studied temperatures is 20-1000 oС. The particle size and density of the material are found to be important parameters that significantly affect the kinetics of pyrolysis. According to the results of measurements, the activation energy of needles pyrolysis is within the range of 22.8-113.8 kJmol-1, and that of oxidation corresponds to 134.7-211 kJmol-1. Three intervals with significantly different values of activation energy and pre-exponential factor are distinguished in the studied temperature range. Approximation expressions are formulated for the activation energies of pyrolysis and oxidation as functions of forest fuel particle sizes, sample density and temperature.
Idioma:	inglês
Publicado em:	2021
Assuntos:	электронный ресурс труды учёных ТПУ forest fuel thermogravimetric analysis inert medium oxidizing medium activation energy pre-exponential factor
Acesso em linha:	https://doi.org/10.2298/TSCI200124134K
Formato:	Recurso Eletrônico Capítulo de Livro
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664914

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