Abstract:
A combustion fluid flow barrier includes an aperture to control combustion fluid flow. The combustion fluid is charged by a charge generator. The combustion fluid flow barrier includes at least one flow control electrode operatively coupled to the aperture and configured to selectively allow, attract, or resist passage of the charged combustion fluid through the aperture, depending on voltage applied to the flow control electrode.
Abstract:
A burner supporting primary and secondary combustion reactions may include a primary combustion reaction actuator configured to select a location of the secondary combustion reaction. A burner may include a lifted flame holder structure configured to support a secondary combustion reaction above a partial premixing region. The secondary flame support location may be selected as a function of a turndown parameter. Selection logic may be of arbitrary complexity.
Abstract:
A combustion system includes a perforated flame holder, a preheating fuel distributor, a main fuel distributor, an oxidant source, an array of sensors, and a controller. The oxidant source outputs an oxidant. The preheating fuel distributor supports a preheating flame configured to preheat the perforated flame holder by outputting a preheating fuel when the combustion system is in a preheating state. The main fuel source outputs a main fuel in the standard operating state. The perforated flame holder is configured to support a combustion reaction of the main fuel and the oxidant in the standard operating state. The sensors are configured to sense parameters of the preheating flame and the perforated flame holder and to output sensor signals to the controller. The controller executes software instructions that include adjusting the flow of the main fuel, the preheating fuel, and the oxidant responsive to the sensor signals.
Abstract:
A combustion system includes a perforated flame holder and a plurality of bluff body members positioned between the perforated flame holder and a fuel source. The fuel source outputs a fuel stream through gaps between the bluff body members toward the perforated flame holder. The perforated flame holder and the bluff body members collectively hold a combustion reaction supported by the fuel stream.
Abstract:
A furnace includes a perforated flame holder formed from an array of tiles. The perforated flame holder is stabilized by a support member extending between at least adjacent tiles. Elongated support members may be positioned to extend through each of the tiles in a respective column of the array of tiles.
Abstract:
A swirl-stabilized burner includes a charge source configured to apply a majority charge to a combustion reaction and at least one stabilization electrode configured to apply electrical attraction or repulsion to the majority charge to control position or stability of the swirl-stabilized combustion reaction.
Abstract:
A burner system includes a perforated flame holder configured to hold a combustion reaction and a plurality of fuel nozzles aligned to deliver respective fuel streams to the perforated flame holder. According to an embodiment, a burner system includes a perforated flame holder and a plurality of fuel and oxidant sources configured to collectively provide a fuel and oxidant mixture to the perforated flame holder. The perforated flame holder is configured to hold a combustion reaction supported by the fuel and oxidant mixture.
Abstract:
A burner includes an electrically powered heater configured to output heat energy to a burner portion configured to contact a fuel stream or a combustion reaction supported by the fuel stream.
Abstract:
A method for operating a combustion system includes outputting fuel and oxidant from a fuel and oxidant source onto a perforated flame holder. The method further includes sustaining a combustion reaction of the fuel and oxidant within the perforated flame holder.