Effect of oxygen concentration and reaction order on char inventory in fluidized bed combustion

Jaakko Saastamoinen (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Abstract

Population balance modeling is applied to develop calculation methods for mass inventory of char in fluidized bed combustion (FBC). The focus is on the effect of gas oxygen concentration and the reaction order of char with respect to oxygen, which is important in understanding and simulating combustion in high oxygen concentration. The well-known shrinking particle model describing the single particle combustion is simplified by applying a dimensionless particle size and dimensionless time with a specifically chosen characteristic reference diameter and time constant. Methods and analytical solutions to calculate particle size distribution (PSD), particle combustion time and char mass in FBC are presented.

Original languageEnglish
Pages (from-to)211-222
Number of pages12
JournalCombustion and Flame
Volume171
DOIs
Publication statusPublished - 1 Sep 2016
MoE publication typeA1 Journal article-refereed

Fingerprint

Fluidized bed combustion
beds
Oxygen
oxygen
Particle size analysis
Particles (particulate matter)
Gases
Particle size
particle size distribution
time constant
gases

Keywords

  • Char inventory
  • Fluidized bed combustion
  • Oxyfuel
  • Oxygen concentration
  • Reaction order

Cite this

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Effect of oxygen concentration and reaction order on char inventory in fluidized bed combustion. / Saastamoinen, Jaakko (Corresponding Author).

In: Combustion and Flame, Vol. 171, 01.09.2016, p. 211-222.

Research output: Contribution to journalArticleScientificpeer-review

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AB - Population balance modeling is applied to develop calculation methods for mass inventory of char in fluidized bed combustion (FBC). The focus is on the effect of gas oxygen concentration and the reaction order of char with respect to oxygen, which is important in understanding and simulating combustion in high oxygen concentration. The well-known shrinking particle model describing the single particle combustion is simplified by applying a dimensionless particle size and dimensionless time with a specifically chosen characteristic reference diameter and time constant. Methods and analytical solutions to calculate particle size distribution (PSD), particle combustion time and char mass in FBC are presented.

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