A 5-step reduced mechanism for combustion of CO/H2/H2O/CH4/CO2 mixtures with low hydrogen/methane and high H2O content

Zacharias Marinou Nikolaou, Jyh-Yuan Chen, Nedunchezhian Swaminathan

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

In this study a 5-step reduced chemical kinetic mechanism involving nine species is developed for combustion of Blast Furnace Gas (BFG), a multi-component fuel containing CO/H2/CH4/CO2, typically with low hydrogen, methane and high water fractions, for conditions relevant for stationary gas-turbine combustion. This reduced mechanism is obtained from a 49-reaction skeletal mechanism which is a modified subset of GRI Mech 3.0. The skeletal and reduced mechanisms are validated for laminar flame speeds, ignition delay times and flame structure with available experimental data, and using computational results with a comprehensive set of elementary reactions. Overall, both the skeletal and reduced mechanisms show a very good agreement over a wide range of pressure, reactant temperature and fuel mixture composition.

Original languageEnglish
Pages (from-to)56-75
Number of pages20
JournalCombustion and Flame
Volume160
Issue number1
DOIs
Publication statusPublished - 31 Jan 2013
Externally publishedYes

Keywords

  • CO/H/HO/CH/CO
  • flame speed
  • ignition delay time
  • premixed
  • reduced mechanism
  • skeletal mechanism

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