Influence of Absorption of Thermal Radiation in the Surface Water Film on the Characteristics and Ignition Conditions

Abstract

The results of the mathematical modeling of homogeneous particle ignition process of coal-water fuel covered with water film have been presented in article. The set co-occurring physical (inert heating, evaporation of water film) and thermochemical (thermal degradation, inflammation) process have been considered. Heat inside the film has been considered as the model of radiation-conductive heat transfer. Delay times have been determined according to the results of numerical modeling of the ignition. It has been shown that the water film can have a significant impact on performance and the ignition conditions. It has been found that heating main fuel layer occurs in the process of evaporation of water film. For this reason, the next (after the evaporation of the water film) thermal preparation (coal heating, thermal decomposition of the organic part of the fuel) and inflammation occur faster.

Original language	English
Article number	01109
Journal	MATEC Web of Conferences
Volume	72
DOIs	https://doi.org/10.1051/matecconf/20167201109
Publication status	Published - 9 Aug 2016
Event	Heat and Mass Transfer in the System of Thermal Modes of Energy - Technical and Technological Equipment, HMTTSC 2016 - Tomsk, Russian Federation Duration: 19 Apr 2016 → 21 Apr 2016

ASJC Scopus subject areas

Chemistry(all)
Engineering(all)
Materials Science(all)

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10.1051/matecconf/20167201109

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title = "Influence of Absorption of Thermal Radiation in the Surface Water Film on the Characteristics and Ignition Conditions",

abstract = "The results of the mathematical modeling of homogeneous particle ignition process of coal-water fuel covered with water film have been presented in article. The set co-occurring physical (inert heating, evaporation of water film) and thermochemical (thermal degradation, inflammation) process have been considered. Heat inside the film has been considered as the model of radiation-conductive heat transfer. Delay times have been determined according to the results of numerical modeling of the ignition. It has been shown that the water film can have a significant impact on performance and the ignition conditions. It has been found that heating main fuel layer occurs in the process of evaporation of water film. For this reason, the next (after the evaporation of the water film) thermal preparation (coal heating, thermal decomposition of the organic part of the fuel) and inflammation occur faster.",

author = "Syrodoy, {Samen V.} and Gutareva, {Nadegda Yu} and Taburchinov, {Roman I.}",

year = "2016",

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doi = "10.1051/matecconf/20167201109",

language = "English",

volume = "72",

journal = "MATEC Web of Conferences",

note = "Heat and Mass Transfer in the System of Thermal Modes of Energy - Technical and Technological Equipment, HMTTSC 2016 ; Conference date: 19-04-2016 Through 21-04-2016",

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T1 - Influence of Absorption of Thermal Radiation in the Surface Water Film on the Characteristics and Ignition Conditions

AU - Syrodoy, Samen V.

AU - Gutareva, Nadegda Yu

AU - Taburchinov, Roman I.

PY - 2016/8/9

Y1 - 2016/8/9

N2 - The results of the mathematical modeling of homogeneous particle ignition process of coal-water fuel covered with water film have been presented in article. The set co-occurring physical (inert heating, evaporation of water film) and thermochemical (thermal degradation, inflammation) process have been considered. Heat inside the film has been considered as the model of radiation-conductive heat transfer. Delay times have been determined according to the results of numerical modeling of the ignition. It has been shown that the water film can have a significant impact on performance and the ignition conditions. It has been found that heating main fuel layer occurs in the process of evaporation of water film. For this reason, the next (after the evaporation of the water film) thermal preparation (coal heating, thermal decomposition of the organic part of the fuel) and inflammation occur faster.

AB - The results of the mathematical modeling of homogeneous particle ignition process of coal-water fuel covered with water film have been presented in article. The set co-occurring physical (inert heating, evaporation of water film) and thermochemical (thermal degradation, inflammation) process have been considered. Heat inside the film has been considered as the model of radiation-conductive heat transfer. Delay times have been determined according to the results of numerical modeling of the ignition. It has been shown that the water film can have a significant impact on performance and the ignition conditions. It has been found that heating main fuel layer occurs in the process of evaporation of water film. For this reason, the next (after the evaporation of the water film) thermal preparation (coal heating, thermal decomposition of the organic part of the fuel) and inflammation occur faster.

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