Abstract:
Technologies are provided for electrical control of a combustion reaction. A first portion of a process material and a combustion reaction may be positioned in mutual proximity. A voltage source may be operatively coupled to the process material via an electrical coupling and to the combustion reaction via a combustion reaction charging mechanism. Respective voltages may be applied to the electrical coupling and the combustion reaction to cause an electrical potential to be formed between the combustion reaction and the process material. The electrical potential may be selected to cause a measurable effect on the combustion reaction, such as to increase or decrease heat transfer to the process material.
Abstract:
A charge electrode configured to impart a time-varying majority charge on a flame and a shape electrode located outside the flame may be driven synchronously by a voltage source through time varying voltage(s). The flame may be flattened or compressed responsive to an electric field produced by the shape electrode acting on the charges imparted on the flame.
Abstract:
A combustion system may include a plurality of heated volume portions. At least two of the plurality of heated volume portions may include corresponding respective electrodes. The electrodes may be driven to produce respective electric fields in their respective volumes. The electric fields may be configured to drive desired respective responses.
Abstract:
Embodiments disclosed herein include flame holders that may provide recirculated fuel flow therethrough, combustion systems that include such flame holders, and related methods. A fuel and/or fuel-oxidant mixture may pass through one or more openings in the flame holder and, after combustion, the resulting flame may be held at or near a surface of the flame holder including in the one or more openings. Generally, the configuration of the flame holders disclosed herein (e.g., the one or more openings of the flame holders) may recirculate or regulate (e.g., decrease and/or increase) the flow of fuel and/or oxidant therethrough, at least limit flame flashback, improve fuel/oxidant mixing, increase flame stability, regulate where the flame is located in the flame holder, improve the operational stability window of the combustion system, or combinations of the foregoing.
Abstract:
A combustion system includes a fuel and oxidant source and a flame holder. The flame holder includes a plurality of discrete slats arranged in parallel defining combustion channels between adjacent slats. The fuel and oxidant source outputs fuel and oxidant into the combustion channels. The flame holder holds a combustion reaction of the fuel and oxidant in the combustion channels.
Abstract:
An inertial electrode launcher may be configured to project charged particles or a voltage comprising an inertial electrode proximate a flame or combustion gas produced by the flame. According to an embodiment, a burner system may include a burner configured to support a flame, the flame carrying first charged particles. At least one inertial electrode launcher may be configured to launch an inertial electrode in proximity to the flame or combustion gas produced by the flame. The inertial electrode may include charged particles or may carry a voltage. The inertial electrode may be configured to affect a shape or location of the flame and/or affect a concentration or distribution of the charged particles in the flame.
Abstract:
Technologies are provided for employing electricity to control a combustion reaction. Energy is received from a combustion reaction. A portion of the received energy is converted to generated electricity. The generated electricity converted from the combustion energy is used to control the combustion reaction.
Abstract:
A burner includes a flame positioning mechanism. The flame positioning mechanism includes a flame charger, a plurality of electrodes placed a respective distances along a fuel stream propagation path, and an electrode switch configured to place a subset of the plurality of electrodes into electrical continuity with a holding voltage. Current flow between the flame charge and the holding voltage anchors the flame to an electrode placed into electrical continuity with the holding voltage.
Abstract:
Gaseous particles or gas-entrained particles may be conveyed by electric fields acting on charged species included in the gaseous or gas- entrained particles.