Patent ID: 8512033
Filing Date: 2013-08-20
Classification: C03B,F23C,F23D,Y02P

Abstract:
1. A burner for combusting a fuel, the burner comprising: a fuel conduit comprising a plurality of sections including a fuel outlet section, each fuel conduit section having a cross-sectional area and being in fluid communication with each other fuel conduit sections, an oxidant conduit comprising a plurality of oxidant sections including a fuel outlet section, each oxidant section having a cross-sectional area and being in fluid communication with each other oxidant sections and the burner having a longitudinal axis and further including a burner tip comprising: a first elongated edge adjacent a flow of the fuel, and a second elongated edge adjacent a flow of an oxidant and having a substantially straight tapered section forming a primary tip angle (α) of less than about 15° from a line parallel to the longitudinal axis and intersecting an upstream surface parallel to the longitudinal axis, the second elongated edge having a curved nose section forming a secondary tip angle (β) with the first elongated edge at a junction of the first elongated edge and the second elongated edge, the secondary tip angle (β) being greater than the primary tip angle (α) and less than about 90° from a line tangent to and extending from the first elongated edge in the direction of the flow of the fuel; wherein at the burner tip the ratio of the oxygen outlet section cross-sectional area to the fuel outlet section cross-sectional area is less than a molar ratio of oxidant to fuel required for stoichiometric combustion.