Sampling method for woody biomass particles conveyed by air in the fuel pipe of a pulverized coal firing boiler

In Japan, a feed-in tariff was introduced to promote and expand the renewable energy ratio to 22-24% by FY 2030. Biomass is one of important renewable energy. Recently, several biomass projects for not only fluidized bed boilers, but also pulverized coal fired boilers, are being planned around the w...

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Autores principales:	Shohei MATSUNARI, Kazuhiro WATANABE, Emi OHNO, Makoto ECHIZENYA
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2020
Materias:	woody biomass particle size distribution isokinetic sampling method pulverized coal fired boiler biomass co-firing Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/42de356974694ea69706169767164d8a
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spelling	oai:doaj.org-article:42de356974694ea69706169767164d8a2021-11-29T05:59:26ZSampling method for woody biomass particles conveyed by air in the fuel pipe of a pulverized coal firing boiler2187-974510.1299/mej.20-00117https://doaj.org/article/42de356974694ea69706169767164d8a2020-07-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/7/4/7_20-00117/_pdf/-char/enhttps://doaj.org/toc/2187-9745In Japan, a feed-in tariff was introduced to promote and expand the renewable energy ratio to 22-24% by FY 2030. Biomass is one of important renewable energy. Recently, several biomass projects for not only fluidized bed boilers, but also pulverized coal fired boilers, are being planned around the world to reduce CO2 emissions as the main reason. The required particle size of woody biomass for combustion in a pulverized coal fired boiler is around 1mm, while that of coal is several tens of m. Woody biomass particles grinded by a mill are sent to burners via a fuel pipe by air. It is important to measure the particle size distribution in order to understand combustibility and grindability. However, it was unknown whether the particle size distribution could be measured by the same sampling method for pulverized coal. We conducted sampling tests of woody biomass particles in a fuel pipe using the isokinetic sampling method. As a result, we observed that the flow of woody biomass particles in the pipe was significantly non-uniform to the influence of the upstream elbow. It is necessary for woody biomass to measure at a pitch of at least 45 in order to obtain the particle size distribution in a fuel pipe.Shohei MATSUNARIKazuhiro WATANABEEmi OHNOMakoto ECHIZENYAThe Japan Society of Mechanical Engineersarticlewoody biomassparticle size distributionisokinetic sampling methodpulverized coal fired boilerbiomass co-firingMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 7, Iss 4, Pp 20-00117-20-00117 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	woody biomass particle size distribution isokinetic sampling method pulverized coal fired boiler biomass co-firing Mechanical engineering and machinery TJ1-1570
spellingShingle	woody biomass particle size distribution isokinetic sampling method pulverized coal fired boiler biomass co-firing Mechanical engineering and machinery TJ1-1570 Shohei MATSUNARI Kazuhiro WATANABE Emi OHNO Makoto ECHIZENYA Sampling method for woody biomass particles conveyed by air in the fuel pipe of a pulverized coal firing boiler
description	In Japan, a feed-in tariff was introduced to promote and expand the renewable energy ratio to 22-24% by FY 2030. Biomass is one of important renewable energy. Recently, several biomass projects for not only fluidized bed boilers, but also pulverized coal fired boilers, are being planned around the world to reduce CO2 emissions as the main reason. The required particle size of woody biomass for combustion in a pulverized coal fired boiler is around 1mm, while that of coal is several tens of m. Woody biomass particles grinded by a mill are sent to burners via a fuel pipe by air. It is important to measure the particle size distribution in order to understand combustibility and grindability. However, it was unknown whether the particle size distribution could be measured by the same sampling method for pulverized coal. We conducted sampling tests of woody biomass particles in a fuel pipe using the isokinetic sampling method. As a result, we observed that the flow of woody biomass particles in the pipe was significantly non-uniform to the influence of the upstream elbow. It is necessary for woody biomass to measure at a pitch of at least 45 in order to obtain the particle size distribution in a fuel pipe.
format	article
author	Shohei MATSUNARI Kazuhiro WATANABE Emi OHNO Makoto ECHIZENYA
author_facet	Shohei MATSUNARI Kazuhiro WATANABE Emi OHNO Makoto ECHIZENYA
author_sort	Shohei MATSUNARI
title	Sampling method for woody biomass particles conveyed by air in the fuel pipe of a pulverized coal firing boiler
title_short	Sampling method for woody biomass particles conveyed by air in the fuel pipe of a pulverized coal firing boiler
title_full	Sampling method for woody biomass particles conveyed by air in the fuel pipe of a pulverized coal firing boiler
title_fullStr	Sampling method for woody biomass particles conveyed by air in the fuel pipe of a pulverized coal firing boiler
title_full_unstemmed	Sampling method for woody biomass particles conveyed by air in the fuel pipe of a pulverized coal firing boiler
title_sort	sampling method for woody biomass particles conveyed by air in the fuel pipe of a pulverized coal firing boiler
publisher	The Japan Society of Mechanical Engineers
publishDate	2020
url	https://doaj.org/article/42de356974694ea69706169767164d8a
work_keys_str_mv	AT shoheimatsunari samplingmethodforwoodybiomassparticlesconveyedbyairinthefuelpipeofapulverizedcoalfiringboiler AT kazuhirowatanabe samplingmethodforwoodybiomassparticlesconveyedbyairinthefuelpipeofapulverizedcoalfiringboiler AT emiohno samplingmethodforwoodybiomassparticlesconveyedbyairinthefuelpipeofapulverizedcoalfiringboiler AT makotoechizenya samplingmethodforwoodybiomassparticlesconveyedbyairinthefuelpipeofapulverizedcoalfiringboiler
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Sampling method for woody biomass particles conveyed by air in the fuel pipe of a pulverized coal firing boiler

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