GAS TURBINE ARRANGEMENT AND METHOD FOR RETROFITTING SAME

摘要

A gas turbine arrangement includes a compressor, a combustion chamber and a turbine connected to one another. A casing housing the compressor has flanges connectable to pipes providing secondary air to at least one of the combustion chamber and the turbine. The flanges define passages having an asymmetric cross section. A method for retrofitting a gas turbine arrangement is also provided.