The reactant mixture is a decisive factor in gas combustion because the chemical reaction takes place very quickly at temperatures of over 1,000 °C. The better the mixture of wood, gas and secondary air, the more thorough the combustion process.
The mixture and chemical reaction of the gases in the combustion chamber can be simulated and optimized using computational fluid dynamics (CFD). This allows influencing factors to be systematically examined. With particle image velocimetry (PIV), the findings from the CFD simulations can be experimentally validated. Scale models of the combustion chamber are produced using rapid prototyping, which also accommodates complex geometries.