WO2014197108A2 - Brûleur électriquement stable à stabilisation des turbulences - Google Patents

Brûleur électriquement stable à stabilisation des turbulences Download PDF

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Publication number
WO2014197108A2
WO2014197108A2 PCT/US2014/031373 US2014031373W WO2014197108A2 WO 2014197108 A2 WO2014197108 A2 WO 2014197108A2 US 2014031373 W US2014031373 W US 2014031373W WO 2014197108 A2 WO2014197108 A2 WO 2014197108A2
Authority
WO
WIPO (PCT)
Prior art keywords
stabilized
swirl
electrically
combustion reaction
electrode
Prior art date
Application number
PCT/US2014/031373
Other languages
English (en)
Other versions
WO2014197108A3 (fr
Inventor
Joseph Colannino
Douglas W. KARKOW
Tracy A. PREVO
Igor A. Krichtafovitch
Christopher A. Wiklof
Original Assignee
Clearsign Combustion Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Clearsign Combustion Corporation filed Critical Clearsign Combustion Corporation
Priority to US14/775,073 priority Critical patent/US20160040872A1/en
Publication of WO2014197108A2 publication Critical patent/WO2014197108A2/fr
Publication of WO2014197108A3 publication Critical patent/WO2014197108A3/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C99/00—Subject-matter not provided for in other groups of this subclass
    • F23C99/001—Applying electric means or magnetism to combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/20—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2209/00—Safety arrangements
    • F23D2209/20—Flame lift-off / stability

Definitions

  • FIG. 1 is a diagram showing a swirl-stabilized burner 100 made according to the prior art.
  • a fuel nozzle 102 outputs a fuel stream 104.
  • An oxidizer source 106 provides an oxidizer gas for combustion.
  • the oxidizer source 106 can supply an oxidizer stream 108 such as oxygen, air, flue gas, or a mixture of gases carrying at least one oxidizer.
  • the fuel and/or oxidizer can be in the form of a liquid or a liquid that flashes to a vapor.
  • An aerodynamic swirler 1 10 imparts relatively high rotational velocity on the oxidizer stream 108.
  • the swirler 1 10 can impart a relatively high rotational velocity on the fuel stream 104 or on both the fuel stream 104 and the oxidizer stream 108.
  • Centrifugal (or centripetal) force on the swirled oxidizer stream causes the oxidizer stream 108 to expand radially as shown when the oxidizer stream exits from the swirler 1 10.
  • the centrifugal expansion can additionally cause the fuel stream 104 to expand at a larger angle than it normally would owing to a partial vacuum caused by the radial expansion of the oxidizer stream 108.
  • the fuel nozzle 102 can include a splitter 1 12 configured to impart radial velocity on the fuel jet 104.
  • the low pressure volume 1 14 causes the fuel stream 104 and the oxidizer stream 108 to flow toward the low pressure volume 1 14.
  • the low pressure volume 1 14 also causes recycling of heat into the low pressure volume 1 14.
  • a combustion reaction 1 16 can be held at a location generally corresponding to the low pressure volume 1 14.
  • the swirl-stabilized burner 100 can be a pre-mixed burner.
  • a single pre-mixed fuel and oxidizer stream (not shown) can flow through a swirler 1 10.
  • the radial expansion of the pre-mixed fuel and oxidizer stream causes a low pressure volume 1 14 as described above.
  • the low pressure volume 1 14 causes the combustion reaction 1 16 to be supported away from the swirler 1 10.
  • the low pressure volume 1 14 is intended to prevent flashback along the pre-mixed fuel and oxidizer stream under normal flow conditions.
  • the swirl-stabilized burner 100 can be a stage of a larger burner.
  • hot exhaust gas can exit the final stage of a turbine (not shown) with swirl imparted.
  • the swirled exhaust can be expanded to form a flow stream similar to the oxidizer stream.
  • Additional fuel and optionally air can be introduced to the swirled exhaust gas to cause an afterburner combustion reaction 1 16.
  • an electrically stabilized swirl-stabilized burner includes a nozzle assembly configured to output a fluid stream including at least one fuel and at least one oxidizer selected to support a combustion reaction, a swirler configured to impart rotational velocity on the fluid stream, at least one ionizer configured to output charges at a first polarity into the fluid stream or the combustion reaction, and at least one stabilization electrode positioned proximate to the combustion reaction and configured to be held at a stabilization voltage selected to affect a location corresponding to the combustion reaction.
  • a method for operating an electrically- and swirl-stabilized burner includes emitting fuel and oxidant from a nozzle assembly along an axis in a downstream direction with a rotational velocity around the axis, supporting a swirl-stabilized combustion reaction with the fuel and oxidant, supplying electrical charges to the combustion reaction, supporting an electrode downstream from the nozzle assembly, and applying a voltage to the electrode to cause the electrical charges carried by the combustion reaction to interact with the voltage carried by the electrode.
  • the charge and/or voltage can be constant (DC) or varying (AC) in polarity.
  • the charge and voltage can be set at fixed magnitudes, for example by manual adjustment. Alternatively, the charge and/or voltage can be varied according to feedback (or feed-forward) control responsive to combustion reaction position.
  • Non-limiting embodiments of the present disclosure are described by way of example with reference to the accompanying figures, which are schematic and are not intended to be drawn to scale. Unless indicated as representing the background art, the figures represent aspects of the disclosure.
  • FIG. 1 is a side-sectional diagram of a swirl-stabilized burner, according to the prior art.
  • FIG. 2 is a side-sectional diagram of an electrically stabilized swirl- stabilized burner, according to an embodiment.
  • FIG. 3 is a side-sectional diagram of an electrically stabilized swirl- stabilized burner, according to another embodiment.
  • FIG. 4 is a side-sectional diagram of an electrically stabilized swirl- stabilized burner, according to another embodiment.
  • FIG. 5 is a side-sectional diagram of an electrically stabilized swirl- stabilized burner, according to another embodiment.
  • FIG. 6 is a flow chart representing a method for operating an electrically stabilized swirl-swirl stabilized burner of FIGS. 2-5, according to an embodiment.
  • Swirl-stabilized burners 100 have shown a tendency for instability, especially under conditions of variable oxidizer stream, fuel stream 104, or oxidizer stream and fuel stream flow rates.
  • FIG. 2 is a side-sectional diagram of an electrically stabilized swirl- stabilized burner 200, according to an embodiment.
  • the electrically stabilized swirl-stabilized burner 200 includes a nozzle assembly 202 configured to output a rotating fluid stream 204.
  • the fluid stream 204 includes at least one fuel and at least one oxidizer selected to support a combustion reaction 1 16.
  • the nozzle assembly 202 includes a swirler 1 10 configured to impart rotational velocity on the fluid stream 204 sufficient to cause the fluid stream to expand upon leaving the nozzle assembly 202.
  • the radial expansion of the fluid stream 204 upon removing radial confinement generally forms a low pressure region 1 14 located along the axis of rotation.
  • the low pressure region 1 14 causes expanded fluid stream 204 to be drawn inward and/or in a direction countercurrent to the mass flow linear direction of the fluid stream 204 just before it leaves radial confinement.
  • the low pressure region 1 14 and the inward and countercurrent flow it produces in the fluid stream 204 causes the combustion reaction 1 16 to be held near the low pressure region 1 14 such that the flame front speed matches the linear mass flow speed from the nozzle assembly 202.
  • the nozzle assembly 202 can include a fuel stream source 102 configured to output a liquid, solid, or gaseous fuel stream 104.
  • the swirler 1 10 can be configured to impart the rotational velocity on the fuel stream 104.
  • the nozzle assembly 202 can include an oxidizer stream source 106 configured to output an oxidizer stream 108.
  • the swirler 1 10 can be configured to impart the rotational velocity on the oxidizer stream 108.
  • the nozzle assembly 202 can include a premixed fuel and oxidizer stream source (not shown) configured to output premixed fuel and oxidizer as the fluid stream 204.
  • the swirler 1 10 can be configured to impart the rotational velocity on the premixed fuel and oxidizers stream.
  • the fluid stream 204 can include flue gas, inert carriers such as (in the case of air) nitrogen, and/or other non-fuel and non-oxidizer species.
  • Swirl-stabilized burners have shown promise with respect to supporting stable flame fronts without attachment to a bluff body. However, swirl-stabilized burners have also shown a tendency to be sensitive to changes in fluid flow rate. Swirl-stabilized burners can be somewhat complex to start-up. Additionally, some swirl-stabilized burners have shown a tendency toward unwanted flame location oscillations.
  • a majority electrical charge is imparted on the fluid stream 204 (or a portion thereof) or onto the combustion reaction 1 16 and carried by the combustion reaction 1 16.
  • the majority electrical charge can be substantially constant or can be alternating polarity, for example.
  • Various combinations of one or more stabilization electrodes are configured to apply electrostatic or electrodynamic attraction or repulsion to the majority electrical charge in the combustion reaction to control or stabilize the combustion reaction.
  • At least one charge source (also referred to as an ionizer herein) 206 is configured to output charges at a first polarity into the fluid stream 204 or to the combustion reaction 1 16.
  • At least one stabilization electrode 208 is positioned proximate to the combustion reaction 1 16 and is configured to be held at a stabilization voltage selected to affect a location corresponding to the combustion reaction 1 16.
  • the burner 200 can include a voltage source 210 operatively coupled to at least the ionizer 206.
  • the voltage source 210 can be configured to output at least one voltage to the ionizer 206.
  • the ionizer 206 can be configured to output charges having the same polarity as the at least one voltage.
  • the polarity can be DC, the polarity can be positive, the polarity can be negative, and/or the polarity can be time-varying.
  • the voltage source 210 can be operatively coupled to the stabilization electrode 208.
  • the voltage source 210 can be configured to apply a plurality of voltages to at least one of either the ionizer 206 or the stabilization electrode 208. Additionally or alternately, the voltage source 210 can be configured to apply a plurality of voltages to both the ionizer 206 and the stabilization electrode 208.
  • the burner 200 can include a controller 212 configured to control at least the ionizer 206.
  • the controller 212 can be configured to control at least an electrical continuity between an activation voltage and the at least one
  • the controller 212 can be configured to control electrical continuity between an activation voltage and the at least one stabilization electrode 208 and can be configured to control a charge stream output by the ionizer 206.
  • the burner 200 can include a voltage source 210 operatively coupled to at least the stabilization electrode 208.
  • the voltage source 210 can be configured to output a voltage to the stabilization electrode 208, the voltage being selected to modulate a location of the combustion reaction 1 16 by attracting or repelling charges output by the ionizer 206 and carried by the combustion reaction 1 16.
  • the at least one stabilization electrode 208 can include one or more segments of a substantially toric conductor disposed between the nozzle assembly 202 and a low pressure region 1 14 produced by the swirler 1 10.
  • the stabilization electrode 208 can carry a voltage opposite in polarity to the majority charge polarity carried by the combustion reaction 1 16 or can be held at or near voltage ground to attract the combustion reaction 1 16 and pull the combustion reaction toward the nozzle assembly 202.
  • the stabilization electrode 208 can carry a voltage having the same polarity as the polarity of the majority charge carried by the combustion reaction 1 16 to repel the combustion reaction 1 16 and push the combustion reaction 1 16 away from the nozzle assembly 202.
  • the electrical attraction or repulsion applied by the stabilization electrode 208 can be used to move the location of the combustion reaction 1 16 relative to the low pressure region 1 14. Additionally or alternatively, the electrical attraction or repulsion applied by the stabilization electrode 208 can be used to reduce oscillations in combustion reaction 1 16 location. Additionally or alternatively, the electrical attraction or repulsion applied by the stabilization electrode 208 can be used to control a combustion reaction location during start-up or shut-down of the burner 200.
  • FIG. 3 is a side-sectional diagram of an electrically stabilized swirl- stabilized burner 300, according to an embodiment.
  • the at least one stabilization electrode 208 can include one or more segments of a conductor 302 disposed away from the nozzle assembly 202 and the combustion reaction 1 16.
  • a controller 212 can be operatively coupled to the voltage source 210 and can be configured to control an activation voltage applied to the at least one stabilization electrode 208, 302.
  • the ionizer 206 can include at least one corona electrode 304 in electrical continuity with a fuel source portion of the nozzle assembly 202. Additionally or alternatively, the controller 212 can be operatively coupled to the voltage source 210 and can be configured to control at least one output voltage delivered to the ionizer 206, 304.
  • the stabilization electrode 208, 302 can optionally be embedded in a bluff body configured to hold the combustion reaction 1 16 in the event the combustion reaction is blown off the low pressure region 1 14.
  • the distal stabilization electrode 302 can receive an activation voltage having the same polarity as the majority charge carried by the combustion reaction 1 16 to repel the majority charge and push the combustion reaction 1 16 closer to the nozzle assembly 202.
  • the distal stabilization electrode 302 can receive an activation voltage corresponding to voltage ground or having an opposite polarity to the polarity of the majority charge carried by the
  • combustion reaction 1 16 to attract the majority charge and pull the combustion reaction 1 16 away from the nozzle assembly 202.
  • FIG. 4 is a side-sectional diagram of an electrically stabilized swirl- stabilized burner 400, according to an embodiment.
  • the at least one stabilization electrode 208 can include a distal stabilization electrode 402 disposed away from the nozzle assembly 202 and a nominal position 403 of the combustion reaction 1 16.
  • a proximal stabilization electrode 404 can be disposed between the nozzle assembly 202 and the nominal position 403 of the combustion reaction 1 16.
  • the voltage controller 406 can be configured to apply respective voltages to the distal stabilization electrode 402 and the proximal stabilization electrode 404. The respective voltages can be selected to stabilize a location of the combustion reaction 1 16 near the nominal position 403.
  • the respective voltages can be selected to drive a location of the combustion reaction 1 16 responsive to a combustion variable.
  • the combustion variable can be selected from the group consisting of fuel flow rate, fuel pressure, oxidizer flow rate, oxidizer vacuum, oxidizer pressure, air flow rate, air vacuum, air pressure, flue gas flow rate, flue gas pressure, flue gas vacuum, oxygen (O 2 ) concentration, carbon monoxide (CO) concentration, oxide of nitrogen (NOx) concentration, and output heat demand.
  • the ionizer 206 can include at least one corona electrode 408 in electrical continuity with the swirler 1 10.
  • FIG. 5 is a side-sectional diagram of an electrically stabilized swirl- stabilized burner 500, according to an embodiment.
  • the at least one stabilization electrode 208 can include an annular electrode 502 configured to variably attract a concentration of charges 504 output by the ionizer 206 and carried by the combustion reaction 1 16. The variable attracting of the charges 504 by the annular electrode 502 can be selected to cause the
  • combustion reaction 1 16 to become increasingly oblate with increasing attraction can be selected to cause the combustion reaction 1 16 to occur in increasingly close proximity to the annular electrode 502 with increasing attraction, and can be selected to cause the combustion reaction 1 16 to occur in an increasingly stable location with increasing attraction.
  • the electrically stabilized swirl- stabilized burner 500 can include a controller 212 operatively coupled to the annular electrode 502.
  • the at least one stabilization electrode 208 can include an annular electrode 502 configured to variably repel a concentration of charges 504 output by the ionizer 206 and carried by the combustion reaction 1 16.
  • the variable repelling of the charges 504 by the annular electrode 502 can be selected to cause the combustion reaction 1 16 to become increasingly elongated with increased repelling. Additionally or alternatively, the variable repelling of the charges 504 by the annular electrode 502 can be selected to cause the combustion reaction 1 16 to occur at increasing distance from the annular electrode 502 with increased repelling.
  • the at least one stabilization electrode 208 can include an annular electrode 502 configured to variably attract or repel a concentration of charges 504 output by the ionizer 206 and carried by the combustion reaction 1 16.
  • a controller 212 operatively coupled to the annular electrode 502 can be configured to variably couple the annular electrode 502 to at least one activation voltage node 506.
  • the controller 212 can be operatively coupled to the ionizer 206 through an isolating coupling 508.
  • the isolating coupling can include at least one capacitor, an inductor, an opto-coupling, and/or can include a resonant coupling.
  • the controller 212 can be operatively coupled to the ionizer 206 and the at least one stabilization electrode 208.
  • a sensor 510 can be operatively coupled to the controller 212 and configured to sense at least one parameter corresponding to the combustion reaction 1 16.
  • the controller 212 can be configured to control a charge flow from the ionizer 206 responsive to sensor 510 feedback.
  • the controller 212 can be configured to control application of at least one activation voltage 506 to the at least one stabilization electrode 208 responsive to sensor 510 feedback.
  • At least one parameter can include a combustion reaction 1 16 model, a combustion reaction 1 16 location, and/or an instability in location of the combustion reaction 1 16.
  • At least one parameter can include at least one selected from the group consisting of a current flow from the combustion reaction 1 16, an image of the combustion reaction 1 16, fuel flow rate, fuel pressure, oxidizer flow rate, oxidizer vacuum, oxidizer pressure, air flow rate, air vacuum, air pressure, flue gas flow rate, flue gas pressure, flue gas vacuum, oxygen (O 2 ) concentration, carbon monoxide (CO) concentration, oxide of nitrogen (NOx) concentration, and heat output from the combustion reaction 1 16.
  • the electrically stabilized swirl-stabilized burner 500 can include a controller 212 operatively coupled to the at least one stabilization electrode 208 through an electrically isolating coupling.
  • FIG. 6 is a flow chart representing a method 600 for operating an electrically stabilized swirl-stabilized burner of FIGS. 2-5, according to an embodiment.
  • the method 600 begins with step 602 wherein fuel and oxidant are emitted from a nozzle assembly along an axis in a downstream direction with a rotational velocity around the axis. Proceeding to step 604, the fuel and oxidant support a swirl-stabilized combustion reaction. In step 606, electrical charges are supplied to the combustion reaction. Step 608 includes supporting an electrode downstream from the nozzle assembly. Proceeding to step 610, a voltage is applied to the electrode to cause the electrical charges carried by the combustion reaction to interact with the voltage carried by the electrode.
  • Causing the electrical charges carried by the combustion reaction to interact with the voltage carried by the electrode is selected to stabilize the combustion reaction.
  • causing the electrical charges carried by the combustion reaction to interact with the voltage carried by the electrode generally includes applying an electrostatic force to the charges carried by the combustion reaction.
  • the force includes a component applied in a direction parallel to the axis.
  • the force can include an electrostatic attraction component selected to pull the electrical charges toward the electrode. Additionally or alternatively, the force can include an electrostatic repulsion component selected to push the electrical charges away from the electrode.
  • the charges supplied to the combustion reaction in step 606 can have a first polarity.
  • the voltage applied to the electrode in step 610 has a second polarity the same as the first polarity.
  • the voltage applied to the electrode in step 610 has a second polarity opposite to the first polarity.
  • applying the voltage to the electrode in step 610 includes placing the electrode in electrical continuity with an electrical ground.
  • supporting an electrode in step 608 can include supporting a toroidal electrode concentric to the axis. Additionally or alternatively, supporting an electrode can include supporting a plurality of electrodes distributed concentric to the axis.
  • supporting an electrode in step 608 includes supporting a single electrode disposed at a position intermediate between the nozzle assembly and a target combustion reaction position.
  • supporting an electrode in step 608 includes supporting a single electrode disposed concentric to the axis at a distance along the axis corresponding to a target combustion reaction position.
  • supporting an electrode in step 608 includes supporting a single electrode disposed away from the nozzle assembly distal from a target combustion reaction position along the axis.
  • supporting an electrode in step 608 includes supporting a first electrode disposed intermediate between the nozzle assembly and a target combustion reaction position and supporting a second electrode disposed away from the nozzle assembly distal from a target combustion reaction position.
  • the method can include charging the combustion reaction with an AC or a DC signal.
  • step 606 can include supplying electrical charges to the combustion reaction comprises supplying charges having an alternating polarity or can include supplying electrical charges to the combustion reaction comprises supplying charges having a constant polarity.
  • supplying electrical charges to the combustion reaction in step 606 can include emitting electrical charges into the fuel or the oxidant (including the fuel and oxidant mixture).
  • supplying electrical charges to the combustion reaction in step 606 can include applying a voltage to a charge electrode in electrical continuity with the combustion reaction.
  • the charge electrode may, for example, include a conductive (e.g., stainless steel) rod disposed on the axis.
  • the rod can be supported distally and project to a location coincident with a target combustion reaction position.
  • the rod can include an insulated portion supported to carry voltage to a location near and axial to the nozzle assembly, and a bare portion that projects along the axis in a downstream direction.
  • the applied voltage can be between about 10 kilovolts and 100 kilovolts, for example.
  • Electric current to achieve the effects described herein is very low - e.g. between about 100 micro-amps and 10 milliamps, so total electrical power is relatively low compared to combustion reaction heat output.
  • Either the charges supplied to the combustion reaction or the voltage applied to the electrode can optionally be controlled to actively control
  • supplying a voltage to a charge electrode can include applying a variable voltage that is a function of a distance between a position of the combustion reaction and a target position of the combustion reaction.
  • the charge current can be a function of the distance between the position of the combustion reaction and the target position of the combustion reaction.
  • the method 600 can further include the steps of detecting a position of the combustion reaction (step 612), comparing the position (of the combustion reaction) to a target position (step 614), and, in step 616, adjusting the voltage applied to the electrode to cause an electrostatic force to be applied to the charged particles carried by the combustion reaction to be proportional to a distance from the combustion reaction position to the target position. Steps 610, 612, 614, and 616 can thus form a control loop for the apparatus described herein.
  • the voltage adjustment (step 616) can be selected to cause the
  • Step 616 can optionally be performed without frequent control loops (610, 612, 614, 616) by manual adjustment of a voltage applied to the electrode, for example. Once adjusted, the voltage can be held substantially constant. This can operate, for example, where the electrode is disposed to apply an electrostatic attraction force toward the target combustion reaction position.
  • the voltage adjustment can be selected to cause the electrostatic force applied to the charged particles to be proportional to a square of the distance from the combustion reaction position to the target position over a range of the distance.
  • This approach can also optionally be performed by manual adjustment of a voltage applied to the electrode (e.g., where the electrode is disposed to apply a repulsive force toward the target combustion reaction position).
  • the voltage adjustment can be selected in step 616 to cause the electrostatic force applied to the charged particles to be linearly proportional to the distance from the combustion reaction to the target position over a range of the distance.
  • detecting a position of the combustion reaction in step 612 can include detecting a current flow through the electrode or by receiving a radiated signal with a photodiode aligned to receive radiation that varies with combustion reaction position.
  • detecting a position of the combustion reaction in step 612 can include capturing an image of the combustion reaction with a focal plane detector (e.g., with a digital video camera).
  • detecting a position of the combustion reaction in step 612, comparing the position to a target position in step 614, and, in step 616, adjusting the voltage applied to the electrode can be performed in part by a microprocessor or microcontroller executing instructions carried by a non-transitory computer readable medium.
  • detecting a position of the combustion reaction (step 612), comparing the position to a target position (step 614), and adjusting the voltage applied to the electrode can be performed in part by a proportional, integral, differential (PID) controller.
  • PID proportional, integral, differential

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  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

L'invention concerne un brûleur à stabilisation des turbulences comprenant une source de charge configurée pour appliquer une charge majoritaire à une réaction de combustion et au moins une électrode de stabilisation configurée pour appliquer une attraction électrique ou une répulsion électrique à la charge majoritaire afin de commander la position ou la stabilité de la réaction de combustion à stabilisation des turbulences.
PCT/US2014/031373 2013-03-20 2014-03-20 Brûleur électriquement stable à stabilisation des turbulences WO2014197108A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/775,073 US20160040872A1 (en) 2013-03-20 2014-03-20 Electrically stabilized swirl-stabilized burner

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361803780P 2013-03-20 2013-03-20
US61/803,780 2013-03-20

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WO2014197108A2 true WO2014197108A2 (fr) 2014-12-11
WO2014197108A3 WO2014197108A3 (fr) 2015-02-19

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