brenneranlage and methods for their operation

摘要

Arranged upstream of each swirl-stabilized premix burner ( 1 ) of a burner system there is respectively an adjustable distributing device ( 5 ) with control valves (VSUB1/SUB, . . . , VSUB8/SUB) and/or on/off valves (V''SUB1/SUB, . . . , V''SUB16/SUB), by means of which various axial mass flow distributions of the fuel introduced can be set. Preferably, those which have particularly favorable values with respect to characteristics such as NOSUBx /SUBemission and maximum amplitudes of pulsations occurring are chosen. For this purpose, Pareto solutions are determined with respect to the said characteristics, in that a distributing device ( 5 ) is represented by a tree structure with distributing parameters, and values for the distributing parameters on the basis of which the distributing device ( 5 ) is set by means of a control unit are iteratively generated in a data-processing system by an evolutionary algorithm. On the basis of the values determined by a measuring unit, solutions which are especially favorable with respect to the characteristics mentioned, especially Pareto-optimal, are selected. The distributing devices are then set during operation on the basis of the solutions of this type corresponding to respective requirements.