A system includes a fuel nozzle including a first wall disposed about a central axis, a second wall disposed about the first wall, and a plurality of lobes disposed between the first and second walls, wherein the plurality of lobes is spaced about the central axis to define a plurality of flow passages, and the plurality of flow passages is configured to output a plurality of flows into a flame region.

An improved combustion system in a combustion turbine engine is provided. The combustor system may include an injector assembly disposed in a combustion stage disposed downstream from a main combustion stage of the combustor system. The injector assembly may include a reactant-guiding structure arranged to deliver to the combustion stage respective jets of reactants through an array of ejection orifices disposed on one or more side walls of the reactant-guiding structure. The reactant-guiding structure may be configured to form a stream-lined body relative to a flow of a fluid to be mixed with the jets of reactants delivered to the combustion stage. The ejection orifices of the array may be aerodynamically-shaped to define a respective stream-lined orifice cross-section, (e.g., airfoil shaped).

An improved combustion system in a combustion turbine engine is provided. The combustor system may include an injector assembly disposed in a combustion stage disposed downstream from a main combustion stage of the combustor system. The injector assembly may include a reactant-guiding structure arranged to deliver to the combustion stage respective jets of reactants through an array of ejection orifices disposed on one or more side walls of the reactant-guiding structure. The reactant-guiding structure may be configured to form a stream-lined body relative to a flow of a fluid to be mixed with the jets of reactants delivered to the combustion stage. The ejection orifices of the array may be aerodynamically-shaped to define a respective stream-lined orifice cross-section, (e.g., airfoil shaped).

Combustion burner panels, submerged combustion melters including one or more of the panels, and methods of using the same are disclosed. In certain embodiments, the burner panel includes a panel body having a first major surface defined by a lower fluid-cooled portion of the panel body, and a second major surface defined by an upper non-fluid cooled portion of the panel body. The panel body has at least one through passage extending from the first to the second major surface, the through passages accommodating a set of substantially concentric inner and outer conduits. The inner conduit forms a primary passage for fuel or oxidant, and the outer conduit forms a secondary passage between the outer conduit and the inner conduit for fuel or oxidant. A protective member is associated with each set. The burner panels promote burner life and melter campaign length.

Combustion burner panels, submerged combustion melters including one or more of the panels, and methods of using the same are disclosed. In certain embodiments, the burner panel includes a panel body having a first major surface defined by a lower fluid-cooled portion of the panel body, and a second major surface defined by an upper non-fluid cooled portion of the panel body. The panel body has at least one through passage extending from the first to the second major surface, the through passages accommodating a set of substantially concentric inner and outer conduits. The inner conduit forms a primary passage for fuel or oxidant, and the outer conduit forms a secondary passage between the outer conduit and the inner conduit for fuel or oxidant. A protective member is associated with each set. The burner panels promote burner life and melter campaign length.

Combustion burner panels, submerged combustion melters including one or more of the panels, and methods of using the same are disclosed. In certain embodiments, the burner panel includes a panel body having a first major surface defined by a lower fluid-cooled portion of the panel body, and a second major surface defined by an upper non-fluid cooled portion of the panel body. The panel body has at least one through passage extending from the first to the second major surface, the through passages accommodating a set of substantially concentric inner and outer conduits. The inner conduit forms a primary passage for fuel or oxidant, and the outer conduit forms a secondary passage between the outer conduit and the inner conduit for fuel or oxidant. A protective member is associated with each set. The burner panels promote burner life and melter campaign length.

Combustion burner panels, submerged combustion melters including one or more of the panels, and methods of using the same are disclosed. In certain embodiments, the burner panel includes a panel body having a first major surface defined by a lower fluid-cooled portion of the panel body, and a second major surface defined by an upper non-fluid cooled portion of the panel body. The panel body has at least one through passage extending from the first to the second major surface, the through passages accommodating a set of substantially concentric inner and outer conduits. The inner conduit forms a primary passage for fuel or oxidant, and the outer conduit forms a secondary passage between the outer conduit and the inner conduit for fuel or oxidant. A protective member is associated with each set. The burner panels promote burner life and melter campaign length.

Flow blurring injection utilizes a two-phase concept to generate fine sprays immediately at the interior exit, rather than a typical jet which gradually disintegrates into ligaments and then finer droplets for a conventional injector. Therefore, clean combustion is achieved with the FB injection for fuels with distinct properties without fuel preheating or hardware modification. However, in addition to the droplets, the FB injection also produces ligaments for highly viscous liquids and relatively larger droplets at spray edge, resulting in difficulty in sustaining the flame and performs incomplete combustion and higher emissions close to the combustor all. The disclosed swirl burst injector and method utilizes the advantages of FB injection and swirl atomization to further improve atomization, and overcomes the limitations of FB injection, providing a sustainable way to use both conventional and alternative fuels with improved efficiency and minimized emissions. The fine atomization of the present invention can be also used in various applications where fine sprays are needed.

A burner for a combustor having a burner axis, a fuel lance, an igniter and a main air flow passage(s). The passage is angled relative to the burner axis and creates a main vortex thereabout in a first rotational direction. The main vortex travels in a direction along the burner axis, away from the surface. The fuel lance is located downstream of the igniter with respect to the first rotational direction of the main vortex so that a part of a main air flow washes over the fuel lance and over the igniter. The fuel lance has a fuel lance axis, a liquid fuel tip having a fuel outlet and an array of air assist passages having outlets arranged thereabout. The air assist passages are angled relative to create an air assist vortex about the fuel lance axis in the same rotational direction to the first rotational direction.

Combustion burner panels, submerged combustion melters including one or more of the panels, and methods of using the same are disclosed. In certain embodiments, the burner panel includes a panel body having a first major surface defined by a lower fluid-cooled portion of the panel body, and a second major surface defined by an upper non-fluid cooled portion of the panel body. The panel body has at least one through passage extending from the first to the second major surface, the through passages accommodating a set of substantially concentric inner and outer conduits. The inner conduit forms a primary passage for fuel or oxidant, and the outer conduit forms a secondary passage between the outer conduit and the inner conduit for fuel or oxidant. A protective member is associated with each set. The burner panels promote burner life and melter campaign length.