LOW-NOx COMBUSTION METHOD FOR GAS TURBINE COMBUSTOR

摘要

PROBLEM TO BE SOLVED: To provide a low-NOx combustion method for a gas turbine combustor, capable of suppressing the NOx exhaust amount, even when combusting fuel having a high hydrogen content, and can perform stable combustion.;SOLUTION: In the low-NOx combustion method for a gas turbine combustor, inner circumferential fuel for strengthening flame-stabilization of a main burner of a gas turbine combustor is supplied to an inner circumferential side coaxial jet burner part located at an inner circumferential side of the main burner through an inner circumferential fuel system and burned. Outer circumferential fuel for the low-NOx combustion of the main burner is supplied to an outer circumferential side coaxial jet burner part located at an outer circumferential side of the main burner through an outer circumferential fuel system and burned. When the fuel having a high hydrogen content in burned, the supply of the inner circumferential fuel supplied to the inner circumferential side coaxial jet burner part of the main burner is interrupted, and the combustion by the outer circumferential fuel supplied to the outer circumferential side coaxial jet burner part of the main burner is continued to perform the low-NOx combustion operation.;COPYRIGHT: (C)2012,JPO&INPIT