Patent ID: 7686611

Claim:
A method for generating straightened flames in a furnace comprising: introducing an oxidant into a plurality of oxidant conduits, each of the plurality of oxidant conduits formed in a burner tile or burner block and having an outlet fluidly communicating with the furnace interior proximate a first interior end of the furnace, the first interior end of the furnace having a horizontally projected area, the plurality of oxidant conduit outlets defining a combined horizontally projected turbulent free-jet area at 30% of the average distance from the first interior end of the furnace to a second interior end of the furnace, the second interior end of the furnace opposite the first interior end of the furnace; introducing a fuel into a plurality of fuel conduits, each of the plurality of fuel conduits having an outlet fluidly communicating with the furnace interior proximate the first interior end of the furnace, the plurality of fuel conduits in spaced relation to the plurality of oxidant conduits; mixing the fuel and the oxidant in the furnace interior; reacting the fuel and the oxidant thereby forming a plurality of flame portions; transferring heat from the plurality of flame portions to a plurality of reaction chambers, said plurality of reaction chambers traversing from the first interior end of the furnace to the second interior end of the furnace, said plurality of reaction chambers having an end portion in spaced relation to the plurality of oxidant conduits and in spaced relation to the plurality of fuel conduits; and reducing the combined horizontally projected turbulent free-jet area at 30% of the average distance from the first interior end of the furnace to the second interior end of the furnace to between 10% and 105% of the horizontally projected area of the first interior end.