Combustion – Process of combustion or burner operation – Controlling or proportioning feed
Reexamination Certificate
2007-04-03
2007-04-03
Basichas, Alfred (Department: 3749)
Combustion
Process of combustion or burner operation
Controlling or proportioning feed
C431S351000, C060S039281
Reexamination Certificate
active
10470556
ABSTRACT:
Arranged upstream of each swirl-stabilized premix burner (1) of a burner system there is respectively an adjustable distributing device (5) with control valves (V1, . . . , V8) and/or on/off valves (V″1, . . . , V″16), 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 NOxemission 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.
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Bueche Dirk
Dornberger Rolf
Koumoutsakos Petros
Paschereit Christian Oliver
Schuermans Bruno
Alstom Technology Ltd.
Basichas Alfred
Cermak Adam J.
Cermak & Kenealy LLP
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