A Four-Step Global Reaction Mechanism for CFD Simulations of Flexi-Fuel Burner for Gas Turbines
Författare
Summary, in English
A reduced four-step scheme for Computational Fluid Dynamics (CFD) analysis is presented here in the context of industrial type laboratory combustor. The present scheme has been optimized for a syngas mixture consisting of 10% CH4, 22.5% CO and 67.5% H2 by volume, and for a methane-air mixture. The optimization of the global scheme is done by comparing with the detailed San Diego mechanism using perfectly stirred reactor (PSR) and laminar flame speed calculations. The four-step global scheme has been applied to the CFD analysis of a swirl-stabilized flexi-fuel burner. Both reacting and non-reacting cases has been computed, using a hybrid Unsteady RANS/Large Eddy Simulation (URANS/LES) technique. Comparisons between CFD results and experimental data in the form of Particle Image Velocimetry (PIV) data, Planar Laser Induced Fluorescence (pLIF) and Proper Orthogonal Decomposition (POD) analysis from an atmospheric burner test rig at Lund University are presented. The CFD results scheme show good agreement with the experimental data.
Avdelning/ar
Publiceringsår
2011
Språk
Engelska
Sidor
785-788
Publikation/Tidskrift/Serie
Turbulence, Heat and Mass Transfer 7
Dokumenttyp
Konferensbidrag
Förlag
ICHMT
Ämne
- Energy Engineering
Nyckelord
- CFD
- Combustion
- Syngas
- hydrogen
Conference name
7th International Symposium on Turbulence, Heat and Mass Transfer
Conference date
2012-09-24 - 2012-09-27
Conference place
Palermo, Sicily, Italy
Status
Published
ISBN/ISSN/Övrigt
- ISBN: 9781567003017