Numerical study of NOx emission in high temperature air combustion

Hongsheng Guo, J. U. Yiguang, Kaoru Maruta, Takashi Niioka, Jun'ichi Sato

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

The characteristics of NOx emission in the high-temperature air combustion technology were investigated numerically. Two kinds of methods were used. Detailed chemistry and transport properties were used for a two-dimensional laminar diffusion flame, and a simplified reaction scheme was used for calculating a turbulent flame in a furnace. Results show that the thermal mechanism dominates NO emission in hightemperature air combustion. If only the preheated air temperature is increased, NO emission will rise significantly. However, the combination of air preheating and flue gas recirculation not only improves the combustion efficiency, but also suppresses NO emission in the combustion process.

Original languageEnglish
Pages (from-to)331-337
Number of pages7
JournalJSME International Journal, Series B: Fluids and Thermal Engineering
Volume41
Issue number2
DOIs
Publication statusPublished - 1998

Keywords

  • Combustion
  • Flue gas
  • Furnace
  • NO
  • Simulation

ASJC Scopus subject areas

  • Mechanical Engineering
  • Physical and Theoretical Chemistry
  • Fluid Flow and Transfer Processes

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