The air velocity of starting deposition of biomass particle conveyed by air in the fuel pipes of boilers

Biomass fuel is promoted toward a target of net GHG zero emissions in 2050 that Japanese government announced last October 2020. Using biomass pellets in pulverized coal fired power plants are recently increasing. IHI has supplied the co-firing power plants of 30cal% or more biomass pellets with coa...

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Main Authors: Shohei MATSUNARI, Toshihiko YAMADA, Emi OHNO
Format: Article
Language:English
Published: The Japan Society of Mechanical Engineers 2022-05-01
Series:Mechanical Engineering Journal
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/mej/9/4/9_22-00021/_pdf/-char/en
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author Shohei MATSUNARI
Toshihiko YAMADA
Emi OHNO
author_facet Shohei MATSUNARI
Toshihiko YAMADA
Emi OHNO
author_sort Shohei MATSUNARI
collection DOAJ
description Biomass fuel is promoted toward a target of net GHG zero emissions in 2050 that Japanese government announced last October 2020. Using biomass pellets in pulverized coal fired power plants are recently increasing. IHI has supplied the co-firing power plants of 30cal% or more biomass pellets with coal. The biomass particles after pulverization by biomass mills are transported to the burners through the fuel pipes by air. Deposition of the biomass particles in a fuel pipe on the way to a burner make a serious impact on the stable combustion and boiler operation. It is important to understand conditions of occurring deposition in order to prevent the deposition of the biomass particles in the fuel pipe. However, various types of pellets are used, and conditions of occurring deposition is depending on the size and shape of the biomass particles. In this test, the transportation of two types of biomass particles is observed by using a transparent horizontal pipe with 30m length. This result suggests that conditions of occurring deposition is different depending on the shape of biomass particles.
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spelling doaj.art-687479dc3167464a9e628dcf7f2f7d1b2022-12-22T04:11:33ZengThe Japan Society of Mechanical EngineersMechanical Engineering Journal2187-97452022-05-019422-0002122-0002110.1299/mej.22-00021mejThe air velocity of starting deposition of biomass particle conveyed by air in the fuel pipes of boilersShohei MATSUNARI0Toshihiko YAMADA1Emi OHNO2IHI CorporationIHI CorporationIHI CorporationBiomass fuel is promoted toward a target of net GHG zero emissions in 2050 that Japanese government announced last October 2020. Using biomass pellets in pulverized coal fired power plants are recently increasing. IHI has supplied the co-firing power plants of 30cal% or more biomass pellets with coal. The biomass particles after pulverization by biomass mills are transported to the burners through the fuel pipes by air. Deposition of the biomass particles in a fuel pipe on the way to a burner make a serious impact on the stable combustion and boiler operation. It is important to understand conditions of occurring deposition in order to prevent the deposition of the biomass particles in the fuel pipe. However, various types of pellets are used, and conditions of occurring deposition is depending on the size and shape of the biomass particles. In this test, the transportation of two types of biomass particles is observed by using a transparent horizontal pipe with 30m length. This result suggests that conditions of occurring deposition is different depending on the shape of biomass particles.https://www.jstage.jst.go.jp/article/mej/9/4/9_22-00021/_pdf/-char/enwoody pelletgas-particle two-phase streampowder conveyingpulverized coal fired boilerbiomass co-firingfroude number
spellingShingle Shohei MATSUNARI
Toshihiko YAMADA
Emi OHNO
The air velocity of starting deposition of biomass particle conveyed by air in the fuel pipes of boilers
Mechanical Engineering Journal
woody pellet
gas-particle two-phase stream
powder conveying
pulverized coal fired boiler
biomass co-firing
froude number
title The air velocity of starting deposition of biomass particle conveyed by air in the fuel pipes of boilers
title_full The air velocity of starting deposition of biomass particle conveyed by air in the fuel pipes of boilers
title_fullStr The air velocity of starting deposition of biomass particle conveyed by air in the fuel pipes of boilers
title_full_unstemmed The air velocity of starting deposition of biomass particle conveyed by air in the fuel pipes of boilers
title_short The air velocity of starting deposition of biomass particle conveyed by air in the fuel pipes of boilers
title_sort air velocity of starting deposition of biomass particle conveyed by air in the fuel pipes of boilers
topic woody pellet
gas-particle two-phase stream
powder conveying
pulverized coal fired boiler
biomass co-firing
froude number
url https://www.jstage.jst.go.jp/article/mej/9/4/9_22-00021/_pdf/-char/en
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