Method for reducing emissions from a combustor

Details Method for reducing emissions from a combustor Method for reducing emissions from a combustor

F - Mech Eng,Light,Heat,Weapons

23

R

F23R 3/46 (2006.01) F23R 3/42 (2006.01)

Patent

CA 2663602

Provided is a modification method for reducing emissions from an annular shaped combustor of a gas turbine plant having uniformly spaced circumferentially mounted premix burners (20). The method includes the steps of: removing at least one the burner (20) thereby disrupting the spatial uniformity of the remaining the burners (20); and modifying the combustor air distribution system so as to compensate for the increased burner pressure drop of remaining burners so by enabling the modified combustor to operate at a load equivalent to the unmodified combustor. Emission reduction is enabled by the increase in the gas velocity of the burner for a given load further enabled by the flame stabilizing effect of disrupting the spatial uniformity.

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