Method and device for setting the oscillation amplitudes of oscillating firing systems for treatment or synthesis of material

Abstract

An oscillating firing system for targeted adjustment/readjustment of amplitudes of oscillations of static pressure and/or hot gas velocity in an oscillating firing system for thermal treatment of materials or materials synthesis includes at least one burner, with which an oscillating (pulsating) flame is generated, and at least one combustion chamber (resonator), into which the flame is directed. Upstream of the burner outlet an oscillation volume is inserted into the supply lines leading to the burner through which oscillation volume air, fuel or fuel-air mixture can flow. Preferably, the size of the oscillation volume may be adjustable. Thus, it is possible to change the amplitude of oscillation.

1 . An oscillating firing system for treatment or synthesis of materials, comprising at least one burner having a burner outlet to which fuel and/or air is fed via at least one pipe, and in which a pulsating flame is disposed at the burner outlet, which burns in a combustion chamber, and a selectively resonating gas column, wherein the at least one pipe is fluidly coupled to at least one oscillation volume. 
     
     
         2 . The oscillating firing system as defined by  claim 1 , wherein the oscillation volume comprises a volume which is variable. 
     
     
         3 . The oscillating firing system as defined by  claim 2  wherein the oscillation volume comprises a cylinder-piston unit. 
     
     
         4 . The oscillating firing system as defined by  claim 1  wherein the oscillation volume comprises a cylinder-piston unit. 
     
     
         5 . A method for operating an oscillating firing system for treatment or synthesis of materials, comprising at least one oscillation volume defining a volume having a size, at least one burner having a burner outlet to which fuel and/or air is fed via at least one pipe, and in which a pulsating flame is disposed at the burner outlet, which burns in a combustion chamber, and a selectively resonating gas column, the method comprising the step of fluidly coupling the oscillation volume to the at least one pipe. 
     
     
         6 . The method as defined by  claim 5  further comprising the step of modifying the size of the volume of the oscillation volume. 
     
     
         7 . A method for operating an oscillating firing system for treatment or synthesis of materials, comprising at least one oscillation volume defining a volume having a size, at least one burner having a burner outlet to which fuel and/or air is fed via at least one pipe, and in which a pulsating flame is disposed at the burner outlet, which burns in a combustion chamber, and a selectively resonating gas column, the oscillation volume being fluidly coupled to the at least one pipe, the method comprising the step of employing the oscillating firing system to produce particles having an average particle size in the range from 5 nm to 3 mm.