Propagation of the ignition front in beds of wood particles

Jaakko Saastamoinen (Corresponding Author), Raili Taipale, Mika Horttanainen, Pertti Sarkomaa

Research output: Contribution to journalArticleScientificpeer-review

118 Citations (Scopus)

Abstract

The speed of the propagation of the ignition front downwards against the air flow in a fixed bed of burning wooden particles has been studied. The ignition speed reaches a steady state soon after ignition at the surface, if the inlet air temperature is the same as the initial temperature of the fixed bed. Modeling of the quasi-steady-state speed of propagation of the ignition front is considered. The effects of the flow rate of air, moisture, particle size, density, and wood species on the velocity of the ignition front and on the maximum temperature in the bed are studied experimentally and interpreted by modeling. A maximum speed of propagation was observed with a specific air rate. Correlations for estimating the velocity of the ignition front and maximum temperature in the bed are presented.

Original languageEnglish
Pages (from-to)214 - 226
Number of pages13
JournalCombustion and Flame
Volume123
Issue number1-2
DOIs
Publication statusPublished - 2000
MoE publication typeA1 Journal article-refereed

Fingerprint

ignition
Ignition
beds
Wood
propagation
Air
air intakes
Temperature
quasi-steady states
temperature
Air intakes
air
air flow
moisture
estimating
Moisture
flow velocity
Particle size
Flow rate

Keywords

  • biomass
  • biofuels
  • wood fuels
  • combustion
  • ignition
  • fixed beds

Cite this

Saastamoinen, J., Taipale, R., Horttanainen, M., & Sarkomaa, P. (2000). Propagation of the ignition front in beds of wood particles. Combustion and Flame, 123(1-2), 214 - 226. https://doi.org/10.1016/S0010-2180(00)00144-9
Saastamoinen, Jaakko ; Taipale, Raili ; Horttanainen, Mika ; Sarkomaa, Pertti. / Propagation of the ignition front in beds of wood particles. In: Combustion and Flame. 2000 ; Vol. 123, No. 1-2. pp. 214 - 226.
@article{43e16387ab6444cf9847c2a68a2768e9,
title = "Propagation of the ignition front in beds of wood particles",
abstract = "The speed of the propagation of the ignition front downwards against the air flow in a fixed bed of burning wooden particles has been studied. The ignition speed reaches a steady state soon after ignition at the surface, if the inlet air temperature is the same as the initial temperature of the fixed bed. Modeling of the quasi-steady-state speed of propagation of the ignition front is considered. The effects of the flow rate of air, moisture, particle size, density, and wood species on the velocity of the ignition front and on the maximum temperature in the bed are studied experimentally and interpreted by modeling. A maximum speed of propagation was observed with a specific air rate. Correlations for estimating the velocity of the ignition front and maximum temperature in the bed are presented.",
keywords = "biomass, biofuels, wood fuels, combustion, ignition, fixed beds",
author = "Jaakko Saastamoinen and Raili Taipale and Mika Horttanainen and Pertti Sarkomaa",
note = "Project code: N6SU00137",
year = "2000",
doi = "10.1016/S0010-2180(00)00144-9",
language = "English",
volume = "123",
pages = "214 -- 226",
journal = "Combustion and Flame",
issn = "0010-2180",
publisher = "Elsevier",
number = "1-2",

}

Saastamoinen, J, Taipale, R, Horttanainen, M & Sarkomaa, P 2000, 'Propagation of the ignition front in beds of wood particles', Combustion and Flame, vol. 123, no. 1-2, pp. 214 - 226. https://doi.org/10.1016/S0010-2180(00)00144-9

Propagation of the ignition front in beds of wood particles. / Saastamoinen, Jaakko (Corresponding Author); Taipale, Raili; Horttanainen, Mika; Sarkomaa, Pertti.

In: Combustion and Flame, Vol. 123, No. 1-2, 2000, p. 214 - 226.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Propagation of the ignition front in beds of wood particles

AU - Saastamoinen, Jaakko

AU - Taipale, Raili

AU - Horttanainen, Mika

AU - Sarkomaa, Pertti

N1 - Project code: N6SU00137

PY - 2000

Y1 - 2000

N2 - The speed of the propagation of the ignition front downwards against the air flow in a fixed bed of burning wooden particles has been studied. The ignition speed reaches a steady state soon after ignition at the surface, if the inlet air temperature is the same as the initial temperature of the fixed bed. Modeling of the quasi-steady-state speed of propagation of the ignition front is considered. The effects of the flow rate of air, moisture, particle size, density, and wood species on the velocity of the ignition front and on the maximum temperature in the bed are studied experimentally and interpreted by modeling. A maximum speed of propagation was observed with a specific air rate. Correlations for estimating the velocity of the ignition front and maximum temperature in the bed are presented.

AB - The speed of the propagation of the ignition front downwards against the air flow in a fixed bed of burning wooden particles has been studied. The ignition speed reaches a steady state soon after ignition at the surface, if the inlet air temperature is the same as the initial temperature of the fixed bed. Modeling of the quasi-steady-state speed of propagation of the ignition front is considered. The effects of the flow rate of air, moisture, particle size, density, and wood species on the velocity of the ignition front and on the maximum temperature in the bed are studied experimentally and interpreted by modeling. A maximum speed of propagation was observed with a specific air rate. Correlations for estimating the velocity of the ignition front and maximum temperature in the bed are presented.

KW - biomass

KW - biofuels

KW - wood fuels

KW - combustion

KW - ignition

KW - fixed beds

U2 - 10.1016/S0010-2180(00)00144-9

DO - 10.1016/S0010-2180(00)00144-9

M3 - Article

VL - 123

SP - 214

EP - 226

JO - Combustion and Flame

JF - Combustion and Flame

SN - 0010-2180

IS - 1-2

ER -

Saastamoinen J, Taipale R, Horttanainen M, Sarkomaa P. Propagation of the ignition front in beds of wood particles. Combustion and Flame. 2000;123(1-2):214 - 226. https://doi.org/10.1016/S0010-2180(00)00144-9