Method and Device for Optimizing Combustion in a Power Plant

Abstract

Methods and devices for optimizing combustion of fuel in a combustion chamber of a power plant are provided. A real concentration distribution of a material and/or a real temperature distribution in the combustion chamber is measured in at least one dimension. The real concentration distribution and/or temperature distribution is evaluated and a combustion of fuel is controlled such that a symmetric concentration distribution and/or temperature distribution in the at least one dimension arises. During the evaluation at least one characteristic of the symmetry of the real concentration distribution and/or temperature distribution is determined, and during the controlling at least one control parameter is changed depending on the at least one characteristic.

1 .- 8 . (canceled) 
     
     
         9 . A method of optimizing combustion of fuel in a combustion chamber of a power plant, comprising:
 measuring a real concentration distribution of a substance in the combustion chamber in at least one dimension;   evaluating the real concentration distribution;   controlling a combustion of fuel such that a symmetric concentration distribution of the substance is created in the at least one dimension;   determining at least one characteristic for a symmetry of the real concentration distribution during the evaluating; and   modifying at least one control parameter depending on the at least one characteristic during the controlling.   
     
     
         10 . The method as claimed in  claim 9 ,
 wherein two-dimensional concentration distributions are measured, and   wherein at least one one-dimensional concentration distribution is calculated there from during the evaluating.   
     
     
         11 . The method as claimed in  claim 9 ,
 wherein the real concentration distribution is decomposed into a plurality of sections, and   wherein the combustion is controlled such that a symmetric concentration distribution is created in each section.   
     
     
         12 . The method as claimed in  claim 10 ,
 wherein the real concentration distribution is decomposed into a plurality of sections, and   wherein the combustion is controlled such that a symmetric concentration distribution is created in each section.   
     
     
         13 . A method of optimizing combustion of fuel in a combustion chamber of a power plant, comprising:
 measuring a real temperature distribution in a combustion chamber in at least one dimension,   evaluating the real temperature distribution;   controlling a combustion of fuel such that a symmetric temperature distribution is created in the at least one dimension;   determining at least one characteristic during the evaluating for a symmetry of the real temperature distribution; and   modifying a control parameter during the controlling depending on the at least one characteristic.   
     
     
         14 . The method as claimed in  claim 13 ,
 wherein two-dimensional temperature distributions are measured, and   wherein at least one one-dimensional temperature distribution is calculated there from during the evaluating.   
     
     
         15 . The method as claimed in  claim 13 ,
 wherein the real temperature distribution is decomposed into a plurality of sections, and   wherein the combustion is controlled such that a symmetric temperature distribution is created in each section.   
     
     
         16 . The method as claimed in  claim 14 ,
 wherein the real temperature distribution is decomposed into a plurality of sections, and   wherein the combustion is controlled such that a symmetric temperature distribution is created in each section.   
     
     
         17 . A device for optimizing combustion of fuel in a combustion chamber of a power plant, comprising:
 a measuring device for measuring a real distribution in a combustion chamber in at least one dimension;   an evaluation device for evaluating the real distribution;   a control device for controlling a combustion of fuel such that a symmetric distribution is created in the at least one dimension.   
     
     
         18 . The device as claimed in  claim 17 , wherein
 the measuring device measures a real concentration distribution of a substance in the combustion chamber,   the evaluation device evaluates the real concentration distribution, and   the control device controls the combustion of fuel such that a symmetric concentration distribution of the substance is created in the at least one dimension.   
     
     
         19 . The device as claimed in  claim 18 ,
 wherein two-dimensional concentration distributions are measured, and   wherein at least one one-dimensional concentration distribution is calculated there from.   
     
     
         20 . The device as claimed in  claim 18 ,
 wherein the real concentration distribution is decomposed into a plurality of sections, and   wherein the combustion is controlled such that a symmetric concentration distribution is created in each section.   
     
     
         21 . The device as claimed in  claim 17 , wherein
 the measuring devices measures a real temperature distribution in the combustion chamber;   the evaluation device evaluates the real temperature distribution; and   the control device controls the combustion of the fuel such that a symmetric temperature distribution is created in the at least one dimension.   
     
     
         22 . The device as claimed in  claim 21 ,
 wherein two-dimensional temperature distributions are measured, and   wherein at least one one-dimensional temperature distribution is calculated there from.   
     
     
         23 . The device as claimed in  claim 21 ,
 wherein the real temperature distribution is decomposed into a plurality of sections, and   wherein the combustion is controlled such that a symmetric temperature distribution is created in each section.