SYSTEM AND METHOD FOR OPERATING A DRY LOW NOx COMBUSTOR IN A NON-PREMIX MODE

摘要

A system for operating a combustor in a non-Premix mode of operation includes a combustor comprising a plurality of primary fuel nozzles annularly arranged around a center fuel nozzle, a fuel supply system that is fluidly coupled to the plurality of primary fuel nozzles and the center fuel nozzle, a steam injection system that is fluidly coupled to the fuel supply system and to at least one of the plurality of primary fuel nozzles or the center fuel nozzle and a controller. The controller is electronically coupled to the fuel supply system and the steam injection system. The controller is programmed to initiate the steam injection system to inject a flow of superheated steam into a flow of fuel from the fuel supply system upstream from at least one of the plurality of primary fuel nozzles or the center fuel nozzle during a non-Premix mode of operation of the combustor.

主权项

1. A system for operating a combustor in a non-Premix mode of operation, comprising:
a combustor comprising a plurality of primary fuel nozzles annularly arranged around a center fuel nozzle; a fuel supply system fluidly coupled to the plurality of primary fuel nozzles and the center fuel nozzle; a steam injection system fluidly coupled to the fuel supply system and to at least one of the plurality of primary fuel nozzles or the center fuel nozzle; and a controller electronically coupled to the fuel supply system and the steam injection system, wherein the controller initiates the steam injection system to inject a flow of superheated steam into a flow of fuel from the fuel supply system upstream from at least one of the plurality of primary fuel nozzles or the center fuel nozzle during a non-Premix mode of operation of the combustor.