Predicting NO

Marco Mancini, Roman Weber, Ugo Bollettini

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Abstract

This paper deals with the technology of burning natural gas with combustion air preheated to 1300 °C. The objective of this work is to assess the potential of several combustion models and NOxpostprocessors for their abilities to predict NOxemissions. The steady-state computational results have been compared both with in-furnace measurements and with the measured furnace exit parameters. The following main conclusions have been drawn: (1) with the exception of the small region located within the natural gas jet, the computations resulted in good quality predictions; (2) the NOxhas been formed in a thin elongated region (flamelet) located between the natural gas jet and the air jet; (3) the NO has been formed mainly by the thermal path, and the NO-reburning mechanism was of little importance; and (4) there are strong indications that the non-stationary behavior of the weak (fuel) jet must be accounted for if the predictions within the fuel jet were to be perfected.
Original languageEnglish
Pages (from-to)1155 - 1162
Number of pages8
JournalProceedings of the Combustion Institute
Volume29
Issue number1
Publication statusPublished - 2002
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Mechanical Engineering
  • Physical and Theoretical Chemistry

Cite this

Mancini, M., Weber, R., & Bollettini, U. (2002). Predicting NO. Proceedings of the Combustion Institute, 29(1), 1155 - 1162.