BURNER ARRANGEMENT AND METHOD FOR OPERATING A BURNER ARRANGEMENT

摘要

The invention relates to a burner arrangement for using in a single combustion chamber or in a can-combustor comprising a center body burner located upstream of a combustion zone, an annular duct with a cross section area, intermediate lobes which are arranged in circumferential direction and in longitudinal direction of the center body. The lobes being actively connected to the cross section area of the annular duct, wherein a cooling air is guided through a number of pipes within the lobes to the center body and cools beforehand at least the front section of the center body based on impingement cooling. Subsequently, the impingement cooling air cools the middle and back face of the 7 center body based on convective and/or effusion cooling. At least the back face of the center body includes on the inside at least one damper.