Analysis of role of erosion process of coal particles in generation of loss of incomplete combustion in fluidized bed boilers

In the herein paper the results of research carried out in the Institute of Thermal Machinery of Technical University of Czestochowa have been presented. They concern the process of combustion of coal particles in a fluidized bed combustor. The tests were carried out on a test stand which allows mod...

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Main Author: Pelka Piotr
Format: Article
Language:English
Published: EDP Sciences 2017-01-01
Series:E3S Web of Conferences
Online Access:https://doi.org/10.1051/e3sconf/20171304005
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spelling doaj-9c5a2882001741789493504cbb2b31162021-04-02T11:16:52ZengEDP SciencesE3S Web of Conferences2267-12422017-01-01130400510.1051/e3sconf/20171304005e3sconf_wtiue2017_04005Analysis of role of erosion process of coal particles in generation of loss of incomplete combustion in fluidized bed boilersPelka Piotr0Czestochowa University of Technology, Institute of Thermal MachineryIn the herein paper the results of research carried out in the Institute of Thermal Machinery of Technical University of Czestochowa have been presented. They concern the process of combustion of coal particles in a fluidized bed combustor. The tests were carried out on a test stand which allows modelling of conditions around the fuel particle in a real object. On the basis of the registered mass loss of the particles of Polish hard and brown coal chosen, the impact of the mass flow rate of inert material with different particle size distribution and different collision velocity with burning coal particle on the rate and level of its burning out was evaluated. The obtained results enables the estimation of the influence of both parameters on the intensity of erosion and determination of its role in the generation of fine particles elutriated out of the combustion chamber. The results also facilitated the verification of the methodology [1] of calculation described in literature relating to the total mass loss of coal particles as a result of combustion and erosion. According to this methodology, the slip velocity between the char particle and the fine bed solid is the main parameter of the erosion process alongside the attrition rate constant ka.https://doi.org/10.1051/e3sconf/20171304005
collection DOAJ
language English
format Article
sources DOAJ
author Pelka Piotr
spellingShingle Pelka Piotr
Analysis of role of erosion process of coal particles in generation of loss of incomplete combustion in fluidized bed boilers
E3S Web of Conferences
author_facet Pelka Piotr
author_sort Pelka Piotr
title Analysis of role of erosion process of coal particles in generation of loss of incomplete combustion in fluidized bed boilers
title_short Analysis of role of erosion process of coal particles in generation of loss of incomplete combustion in fluidized bed boilers
title_full Analysis of role of erosion process of coal particles in generation of loss of incomplete combustion in fluidized bed boilers
title_fullStr Analysis of role of erosion process of coal particles in generation of loss of incomplete combustion in fluidized bed boilers
title_full_unstemmed Analysis of role of erosion process of coal particles in generation of loss of incomplete combustion in fluidized bed boilers
title_sort analysis of role of erosion process of coal particles in generation of loss of incomplete combustion in fluidized bed boilers
publisher EDP Sciences
series E3S Web of Conferences
issn 2267-1242
publishDate 2017-01-01
description In the herein paper the results of research carried out in the Institute of Thermal Machinery of Technical University of Czestochowa have been presented. They concern the process of combustion of coal particles in a fluidized bed combustor. The tests were carried out on a test stand which allows modelling of conditions around the fuel particle in a real object. On the basis of the registered mass loss of the particles of Polish hard and brown coal chosen, the impact of the mass flow rate of inert material with different particle size distribution and different collision velocity with burning coal particle on the rate and level of its burning out was evaluated. The obtained results enables the estimation of the influence of both parameters on the intensity of erosion and determination of its role in the generation of fine particles elutriated out of the combustion chamber. The results also facilitated the verification of the methodology [1] of calculation described in literature relating to the total mass loss of coal particles as a result of combustion and erosion. According to this methodology, the slip velocity between the char particle and the fine bed solid is the main parameter of the erosion process alongside the attrition rate constant ka.
url https://doi.org/10.1051/e3sconf/20171304005
work_keys_str_mv AT pelkapiotr analysisofroleoferosionprocessofcoalparticlesingenerationoflossofincompletecombustioninfluidizedbedboilers
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