Paul Scherrer Institut Combustion Fundamentals Group

Paul Scherrer Institut
CH-5232 Villigen PSI
Phone +41 56 310 21 11
Fax +41 56 310 21 99









Friendly Page Printout without Logo or Navigation Elements available here... click and print

Combustion Fundamentals Group

The Combustion Fundamentals Group (CFG) is engaged in the fundamental investigation of the hetero-/homogeneous (catalytic and gas-phase) processes and their coupling during large-scale and meso-scale combustion. The applied research focuses on clean combustion technologies (low NOx and CO2 emissions) for large gas turbines of power generation systems, using either fuel-lean catalytic combustion (catalytically stabilized combustion, CST) or fuel-rich catalytic combustion (catalytic partial oxidation, CPO). Small-scale power generation (50 We to 1 kWe) is also investigated for portable power generation.

Our group operates atmospheric and high pressure combustion test rigs, which are optically accessible to facilitate laser-based measurements (e.g. Raman, laser induced fluorescence, particle image velocimetry). Detailed numerical predictions with our in-house developed multi-dimensional CRFD codes, steady or transient, are used to study the hetero-/homogeneous processes at industrially-relevant operating conditions (pressures up to 16 atm), to validate chemical reaction schemes, and to address the coupling of turbulence and hetero-/homogeneous chemistry. The combustion stability maps of catalytic microreactors are also investigated numerically. Analytical work based on activation energy asymptotics complements our numerical activities and identifies the controlling parameters in channel-flow catalytic combustion. Finally, Lattice Boltzmann (LB) modeling is used to simulate non-reacting and reacting flows with particular emphasis on micro-scale flows of low Knudsen number.