Characterization of a full-scale, single-burner pulverized coal boiler: temperatures, gas concentrations and nitrogen oxides

Jytte Boll Illerup*, Kim Dam-Johansen, Peter Glarborg

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Local temperatures and gas concentrations were measured in a 17 MW top-fired pulverized coal furnace. A specially designed suction pyrometer was used for thermocouple temperature measurements as well as withdrawal of gas samples from the furnace. The gas sampling system was carefully tested to make sure that the sample gas was efficiently quenched. Gas samples were analysed for O2, CO, CO2, NO, NO2 and SO2. The effects of furnace load, primary:secondary air ratio and total excess air level were investigated. NO emission increased with the total excess air level, but was less sensitive to variations in load and in distribution of combustion air. These results are discussed in terms of NO formation mechanisms as well as burner and furnace characteristics. The experimental data provide good possibilities for scaling and modelling studies, in that they characterize a full-scale, single-burner pulverized coal system with a simple geometry.

Original languageEnglish
JournalFuel
Volume73
Issue number4
Pages (from-to)492-499
ISSN0016-2361
DOIs
Publication statusPublished - 1994

Keywords

  • Combustion
  • Nitrogen oxides
  • Pulverized coal

Fingerprint Dive into the research topics of 'Characterization of a full-scale, single-burner pulverized coal boiler: temperatures, gas concentrations and nitrogen oxides'. Together they form a unique fingerprint.

Cite this