Abstract:
A method for controlling a combustion reaction includes introducing fuel and oxidizer into a combustion volume at a ratio that is outside a range defined by an upper flammability or stability limit and a lower flammability or stability limit of the fuel, and producing a modified range defined by a modified upper flammability or stability limit and a modified lower flammability or stability limit of the fuel, by applying an electric field across a flame supported by the fuel and oxidizer, the ratio falling within the modified range.
Abstract:
A combustion system includes, burner, a camera, and a control circuit. The burner initiates a combustion reaction. The camera takes a plurality of images of the combustion reaction. The control circuit produces from the images an averaged image and adjusts the combustion reaction based on the adjusted image.
Abstract:
Technologies are provided for applying energy to a combustion reaction. For example, a method may include supporting a combustion reaction; applying energy to the combustion reaction via one or more control signals; detecting a change in one or more parameters associated with the combustion reaction; comparing the change in the one or more parameters to a database; determining whether the change in the one or more parameters corresponds to a change in the combustion reaction; selecting a change in the one or more control signals from the database; and applying the change in the one or more control signals to change the a value of the energy applied to the combustion reaction responsive to changes in the one or more parameters associated with in the combustion reaction.
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:
Nitrogen oxides (NOx) generated by a fuel burner is reduced by anchoring the flame to a conductive anchor disposed a lift distance from a fuel nozzle, using a voltage applied to the flame.
Abstract:
A combustor provides reaction anchoring by injecting a voltage or charge into an exothermic reaction such as aflame, and anchoring the exothermic reaction to a conductive surface positioned adjacent to a fuel jet nozzle.
Abstract:
A combustion system includes a perforated flame holder, an oxidant source, and an adjustable fuel nozzle. The oxidant source outputs oxidant. The adjustable fuel nozzle outputs fuel onto the perforated flame holder. The perforated flame holder supports a combustion reaction of the fuel and oxidant within the perforated flame holder. The position of the adjustable nozzle relative to the perforated flame holder can be adjusted to achieve selected characteristics of the combustion reaction within the perforated flame holder.
Abstract:
A solid fuel combustion system includes a solid fuel burner configured to sustain a combustion reaction of a solid fuel and an oxidant. The solid fuel combustion system includes a first and a second electrode positioned to adjust a shape of a combustion reaction of solid fuel and an oxidant by generating an electric field.
Abstract:
A combustion system includes a perforated flame holder that includes a plurality of perforations and substantially contains a combustion reaction within the perforations. The system further includes one or more electrodes coupled to the perforated flame holder and configured to electrically influence the combustion reaction within the perforations.
Abstract:
A method of operation of a burner system includes introducing a fuel stream into a perforated flame holder, combusting the fuel stream, with a majority of the combustion occurring between an input face and an output face of the flame holder, and producing a heat output from the combustion of at least 1.5 kBTU/H/in 2 .
Abstract translation:燃烧器系统的操作方法包括将燃料流引入穿孔火焰保持器中,燃烧燃料流,大部分燃烧发生在火焰保持器的输入面和输出面之间,并产生从 燃烧至少1.5 kBTU / H / in2。