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A 5-step reduced mechanism for combustion of CO/H 2/H 2O/CH 4/CO 2 mixtures with low hydrogen/methane and high H 2O content


Type

Article

Change log

Authors

Nikolaou, ZM 
Chen, J-Y 
Swaminathan, N 

Abstract

In this study a 5-step reduced chemical kinetic mechanism involving 9 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. These 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.

Description

Keywords

CO/H-2/H2O/CH4/CO2, Reduced mechanism, Skeletal mechanism, Flame speed, Ignition delay time, Premixed

Journal Title

Combustion and Flame

Conference Name

Journal ISSN

0010-2180
1556-2921

Volume Title

160

Publisher

Elsevier BV
Sponsorship
ZMN and NS acknowledges the funding through the Low Carbon Energy University Alliance Programme supported by Tsinghua University, China. ZMN also likes to acknowledge the educational grant through the A.G. Leventis Foundation.