Patent ID: 8506660

Claim:
A method for assembling a nozzle, said method comprising: providing an injection tube that includes an outlet that is configured to discharge fuel therefrom into a gasifier; and providing a face plate that extends about the injection tube such that the face plate substantially circumscribes the outlet, wherein the face plate includes an outer surface and an opposite inner surface such that the outer surface defines a discharge end of the nozzle adjacent the outlet; defining a cooling chamber within the injection tube that extends along the face plate inner surface, and that is configured to channel cooling fluid adjacent to the face plate such that the cooling fluid is substantially isolated from the fuel in the injection tube; forming a plurality of projections extending substantially perpendicularly from the face plate inner surface and only partially across the cooling chamber; orienting the plurality of projections to turbulate a flow of the cooling fluid flowing through the cooling chamber and to facilitate increasing contact between the turbulated cooling fluid and the face plate.