Method for reducing emissions from a combustor

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

2009-05-07

2010-06-01

Bryant, David P (Department: 3726)

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

C029S888010, C029S889220, C060S772000, C060S747000, C060S725000

Reexamination Certificate

active

07726019

ABSTRACT:
A modification method for reducing emissions from an annular shaped combustor of a gas turbine plant, having uniformly spaced circumferentially mounted premix burners (20), includes the steps of: removing at least one 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 the remaining burners, thus 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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