Nozzle assembly for a solid fuel burner and method of operating a nozzle assembly for a solid fuel burner
AssigneeGeneral Electric Company
InventorsGregory Dunnu, Reinhard Gollnick, Wadim Pimenov, Jakob Heimann
Life of this patent
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Abstract
A nozzle tip for a pulverized solid fuel pipe nozzle of a pulverized solid fuel-fired furnace is provided. The nozzle tip includes a primary shroud having an inlet end and an outlet end, and an outlet at the outlet end for the passage of a pulverized solid fuel into the furnace. An area of the outlet is selectively adjustable to vary an exit velocity of the pulverized solid fuel from the nozzle tip.
Claims20
A nozzle tip for a pulverized solid fuel pipe nozzle of a pulverized solid fuel-fired furnace, the nozzle tip comprising:
- a primary shroud having an inlet end and an outlet end, and an outlet at the outlet end for the passage of a pulverized solid fuel into the furnace;
- wherein an area of the outlet is selectively adjustable to vary an exit velocity of the pulverized solid fuel from the nozzle tip.
A method of operating a burner, comprising the steps of:
- suppling a flow of fuel through at least one fuel nozzle assembly having a nozzle tip to a combustion chamber;
- and
- varying an exit velocity of the fuel from the nozzle tip in dependence upon at least one of a property of the fuel and/or an operational requirement of the burner.
A combustion system, comprising:
- a combustion chamber;
- and
- a nozzle tip of a nozzle assembly configured to direct a mixed flow of fuel and primary air into the combustion chamber, the nozzle tip including a primary shroud having an outlet;
- wherein an area of the outlet is selectively adjustable to vary an exit velocity of the mixed flow of fuel and primary air from the nozzle tip.
Dependencies are inferred from the claim text.