Influence of the combustion chamber design on the primary air ratio of atmospheric gas burners

摘要

Atmospheric burners are installed in housholds for hot-water supply and for heating.Optimazing the burning behaviour within a complete gas burning installation is based on experimences and gained by gradually modifying geometric parameters.The calculation mehtod for dimensioning injector burners during free burning,which had been developed at Gqaswarme-Institut has bene extended.the effects between the combustion chamber parameters and the gas flow air ratio has been descibe.the main influence is the buoyancy power,which is linked with the main gas desnity in the combustion chamber.With the measured values at an experimental combustions chamber an equatation for the determination of the main gas density has been worked out.The new calculation method facilitate to estimate the burnign behaviour of injector burners installe din a complete gas applicance.Cost-intensive experiments during designing a new burner can be reduced.