Abstract: Burner comprising at least one passage for injecting at least a primary jet, such as a jet of oxidant and/or fuel and/or of a premix of oxidant and fuel, and means of injecting at least one secondary jet of fluid opening into said passage, the interaction between the primary jet and the at least one secondary jet making it possible to vary the direction and/or the size of the flame. Use of said burner for heating a charge with the variable-direction and/or variable-size flame.

Abstract: Power cycle generation equipment is operated in a more efficient and economical manner by using an uncooled (and potentially uncleaned) fuel gas supplied to the equipment directly from a gasification process, i.e., without first quenching or pressurizing the gas. In one embodiment, a burner used in conjunction with the power cycle generation equipment accepts such fuel gas directly from a syngas generator (or perhaps after particulate removal). The burner preferably operates with fuel gas and oxidizer inputs reversed as compared to existing configuration.

Abstract: A four-tube heating system for combusting a fuel and transferring the heat released therefrom to a process fluid. The heating system includes, a fuel introduction zone, a combustion zone, an oxidant introduction zone, and a process fluid zone, wherein the fuel introduction zone is defined by fuel introduction means for introducing fuel into the combustion zone that is defined by a reaction tube external to and surrounding the fuel introduction means, and wherein the oxidant introduction zone is defined by an oxidant introduction tube external to and surrounding the reaction tube, and wherein the process fluid zone is defined by a process tube external to and surrounding the oxidant tube.

Abstract: A description is given of a burner for introducing solid, liquid or gaseous fuel to a burning zone of a kiln, such as a rotary kiln for manufacturing cement clinker or the like, said burner comprising a number of substantially concentric ducts (1, 2, 3), being parallel to the main axis B3 of the burner, for conveying fuel and primary air to nozzle openings, as well as a number of additional ducts (4, 6, 7, 8) for conveying solid, fluid or gaseous fuel to separate nozzle openings, said additional ducts being located in the central part (10) of the burner. The burner is characterized in that it comprises means (4a, 5) for changing the flow direction of the fuel which is introduced via at least one of the additional ducts in the central part (10) of the burner, relative to the main axis B3 of the burner, at least in an ascending direction. This will allow the individual fuel particles to travel in a curved, approximately ballistic path, thereby extending the time they can be maintained in the flame.

Abstract: The present application relates in general to an apparatus and to methods for testing the performance of an automotive catalytic converter under conditions simulating those which occur in motor vehicles over extended driving conditions. The application provides a novel swirl plate and a novel fuel injector which enable the burner to run stoichiometric for extended periods of time.

Abstract: An object of the present invention is to provide a burner such as a two-fluid spray burner which can produce a large amount of combustion exhaust gas with a simple structure, does not cause unburned gas and accidental fire, and furthermore can provide shortened flame and a uniform distribution of the flow rate of the combustion exhaust gas. Accordingly, the burner includes: a cylindrical combustion air passage (15) formed between a two-fluid sprayer (12) and a burner outer cylinder (48) surrounding a periphery of the two-fluid sprayer; a plate (shield plate) (18) separating the combustion air passage and a combustion space portion (13); and a combustion air passage hole (52) provided in the outer periphery of the plate. Combustion air (50) flowing down the combustion air passage is blocked by the plate and introduced to the outer periphery of the plate to be kept away from the two-fluid spray nozzle (38). The combustion air then flows through the combustion air passage hole into the combustion space portion.

Abstract: An assembly is provided for purifying toxic gases from production processes by thermal conversion in a reactor chamber and subsequent treatment of reaction products with a sorption agent in a washing device in order to bind water-soluble reaction products and to elute solid reaction products. The reactor chamber has an external wall and an internal wall, the internal wall tapering at its base in the form of a funnel at a predetermined angle. A unit for thermal treatment of toxic gases is located on the reactor chamber, sealing the top of the chamber. An inner face of the internal wall of the reactor chamber comprises a film of water flowing downwards in a uniform manner. The exterior of the internal wall is surrounded by a cloak of water. A waste gas outlet and a connection for a water circuit are located at the lower end of the tapering internal wall.

Abstract: A lance is presented for introducing fuel into a second burner of a combustion chamber of a gas turbine installation with sequential combustion, having a first and a second combustion chamber. The lance includes a foot and a shank which projects from it. In an installed state of the lance the foot extends perpendicularly or at an angle to a main flow direction of the burner. The shank extends centrally in the burner and generally parallel to the main flow direction. At least one projecting arm, having at least one nozzle for introducing fuel, is arranged such that it extends from the shank. A respective end of the at least one arm is oriented in the main flow direction and extends generally parallel to the main flow direction.

Abstract: An oxy-fuel burner that co-fires liquid fuel and gaseous fuel to create a more luminous flame. The characteristics of a liquid fuel spray and the gaseous fuel and primary oxidant gas flows, as well as the geometry of the burner is adapted to shroud the liquid fuel from the primary oxidant until it exits a precombustor and to prevent the liquid fuel from contacting the walls of the precombustor.

Abstract: The burner preferably exclusively burns substantially explosible solid fuels and preferably has instant ON-OFF thermostat control, wastes no energy preheating the enclosure or external air supply, achieves stable combustion the moment the powder-air mix is ignited in our burner, is used in the upward vertical mode except for oil burner retrofits, burns a solid fuel in a single-phase regime as if it were a vaporized liquid or gas, is designed to complete combustion within the burner housing itself rather than in a large, high temperature furnace enclosure which it feeds, has an ultra-short residence time requirement, is a recycle consuming burner with self-contained management of initially unburned particles, is much smaller, simpler and lower cost, has a wider dynamic range/turndown ratio, is more efficient in combustion completeness and thermal efficiency, and operates with air-fuel mix approximately at the flame speed.

Abstract: A method of operating a pyrolysis heater for reduced emissions of NOx and carbon monoxide. One or more wall burners, typically premix burners, are operated with more excess oxidant gas than one or more of the floor or hearth burners, which are typically non-premix burners. The invention takes advantage of different NOx emissions characteristics from different types of burners.

Abstract: A method and apparatus for reducing NOx emissions in a coal burning furnace of a power plant without utilizing techniques downstream of the furnace, such as SCR and SNCR, is provided. In a primary combustion zone, a fuel is combusted in the presence of a first oxidant gas comprised substantially of N2, to produce a first effluent gas that include one or more NOx species. Downstream a re-burn zone is operated in a sub-stoichiometric manner, combusting a second fuel in presence of the first effluent gas and a second oxidant wherein the second oxidant gas comprises a stream of oxygen. The effluent gas from the re-burn zone is introduced to overfire airflow so as to establish a super-stoichiometric zone prior to discharged from the furnace.

Abstract: A furnace is heated by a burner that can be selectively operated by either air-fuel or oxy-fuel combustion. The burner comprises a conduit for fuel, a conduit for air, a conduit for oxidant, and control means for regulating flow through the air and oxidant conduits. An air-fuel fired furnace can be modified by addition of the oxidant and fuel conduits and the control means for regulating flow through air and oxidant conduits.

Abstract: Combustion of hydrocarbon fuel is achieved with less formation of NOx by feeding the fuel into a slightly oxygen-enriched atmosphere, and separating air into oxygen-rich and nitrogen-rich streams which are fed separately into the combustion device.

Abstract: A method and a device for combusting gaseous fuel which contains hydrogen or consists of hydrogen, includes a burner which provides a swirl generator (1) into which liquid fuel is feedable centrally along a burner axis (A), forming a liquid fuel column which is conically formed and which is enveloped by, and mixed through with, a rotating combustion air flow which flows tangentially into the swirl generator (1). The gaseous fuel is fed inside the swirl generator (1) largely axially and/or coaxially to the burner axis (A), forming a fuel flow with a largely spatially defined flow pattern (9) which is maintained inside the burner and bursts open in the region of the burner outlet.

Abstract: A gas burner for use in a furnace and a method of burning gas in a furnace, especially but not exclusively a process furnace used in an oil cracking or refining process. The gas burner comprises two passageways with adjacent outlets. The first passage way is in fluid communication with a source of pressurised fuel gas and has an aperture through which recirculated flue gas can enter the first passageway and the second passageway is in fluid communication with a source of air. In operation, fuel gas is injected into the first passageway and recirculated flue gas is thereby drawn into the first passageway so that it mixes with the fuel gas. Fuel gas is partially combusted and a mixture of partially combusted fuel gas and recirculated flue gas flows up the first passageway and comes into contact with air from the second passageway and combusts.

Abstract: A burner has a port facing into a combustion chamber along an axis. A secondary fuel injector structure has secondary fuel injection ports that face into the combustion chamber at locations spaced radially outward from the burner port. A tertiary fuel injector structure has tertiary fuel injection ports that face into the combustion chamber in directions perpendicular to the axis at locations spaced axially downstream from the secondary fuel injection ports.

Abstract: In a combustion apparatus in which an air supply chamber 4 in a lower part partitioned by a partition plate 3 from an arrangement section of a burner unit and a primary air chamber in a front part that stands from a front end of the air supply chamber are provided in a combustion housing 1 incorporating the burner unit 2, the air from a combustion fan 6 connected to an air supply port 4a opened on a bottom surface of the air supply chamber flows to the primary air chamber through the air supply chamber, and primary air is supplied from the primary air chamber to respective burners of the burner unit, it is an object of the present invention to make it possible to uniformalize a pressure distribution in the primary air chamber and supply the primary air to all the burners equally.

Abstract: The invention relates to an apparatus for the thermal treatment of process exhaust gases containing pollutants, which can be used for a very wide range of surface modification processes carried out under a vacuum. The intention is to achieve the object of thermally treating process exhaust gases containing pollutants in such a way that accumulations of particles on the inner wall of a combustion chamber and an undesirable adverse effect on the thermal conversion can be avoided with little outlay.

Abstract: A burner (1) for a combustion chamber of a gas turbine, especially in a power plant, includes an oxidator feed device (10) for feeding a gaseous oxidator into a mixer chamber (3) of the burner (1), a gaseous fuel feed device (11) for feeding a gaseous fuel into the mixer chamber (3), and a liquid fuel feed device (12) for feeding a liquid fuel into the mixer chamber (3). In order to improve the operation of the burner (1) with liquid fuel, the liquid fuel feed device (12) has a main feed line (13) which feeds liquid fuel to a plurality of injection orifices (14). Some of these injection orifices (14), with regard to a main outflow direction (9) of the burner (1), which has an oxidator-fuel mixture, which flows from the mixer chamber (3), at an outlet opening (5) of the mixer chamber (3), are arranged in series.

Abstract: A dual fuel nozzle of a gas turbine combustor with a variable jetting hole diameter is disclosed. The combustor includes a plurality of swirling wings disposed along an outer peripheral surface of a central shaft to have at least one main fuel jetting hole, an air duct positioned at the lower side of the swirling wings to supply air to the swirling wings, a pilot fuel injection hole and jetting hole formed to pass through a central portion of the central shaft to supply a pilot fuel, a switching plate disposed inside the swirling wings to vary the size of the main fuel jetting hole, a driving unit disposed to be connected to the switching plate to move a position of the switching plate, and a casing containing the swirling wings, the air duct, the switching plate and the driving unit. It is possible to enhance fuel flexibility in a multiple fuel system for applying two or more fuels to a gas turbine at the same time.

Abstract: A method and a burner for combustion in a heating furnace of a fuel with an oxidant in the form of oxygen gas, wherein fuel and oxidant are supplied to a burner head. Fuel and oxidant, respectively, are injected via the burner head through at least two pairs of nozzles, wherein one nozzle pair is defined by a separate fuel nozzle and a separate oxidant nozzle. The nozzles of the nozzle pairs are uniformly distributed over the furnace-interior-facing surface of the burner and within the circumference of the burner head. An oxidant nozzle is provided on each side of a fuel nozzle.

Abstract: A burner and method of combustion for a furnace or a forehearth includes a gas delivery member and a fuel delivery member having a portion thereof disposed at an interior of the gas delivery member and offset or angled from a longitudinal axis of the gas delivery member to provide gaseous oxidant and fuel flows for combustion.

Abstract: Combustion system comprising a furnace having a thermal load and a combustion atmosphere disposed therein; one or more fuel lances adapted to inject fuel into the combustion atmosphere; and one or more igniters associated with the one or more fuel lances and adapted to ignite the fuel injected by the one or more fuel lances into the combustion atmosphere.

Abstract: An end cover for a gas turbine combustor that eliminates the use of braze joints within the plate portion of the end cover is disclosed. The end cover comprises a plate and a plurality of fluid inlets with the fluid inlets directing fluids to first and second manifolds machined into the end cover. The fluids within the end cover are kept separate proximate each of the plurality of first openings by a wall that is integrally formed from a portion of the end cover plate.

Abstract: A burner assembly for the destruction of noxious vapors and other waste streams includes an inner burner element in the form of a sudden expansion burner and an outer burner element that encircles the inner burner element and forms an annular passageway between the two elements. Waste vapors may be conducted directly into the flame of the inner burner element (direct inject) or routed through the annular passageway and preheated, for injection at the flame or beyond. The burner elements may include solid or perforated cones mounted on their exits to enhance mixing and injection of the streams. The burner assembly may be equipped with water injection nozzles for flash oxidation of contaminants in waste waters.

Abstract: The invention relates to a burner with a burner head (1) and a gas feed pipe (2) that is located in the burner head (1) and that is surrounded by an ring channel (3) for feed of another gas. In the gas feed pipe (2) and in the ring channel (3), there are means (10, 11) for producing a swirl of the gas flowing through the gas feed pipe (2) and that flowing through the ring channel (3).

Abstract: A method for gasifying carbonaceous materials to fuel gases comprises the formation of an ultra-superheated steam (USS) composition substantially containing water vapor, carbon dioxide and highly reactive free radicals thereof, at a temperature of about 2400° F. (1316° C.) to about 5000° F. (2760° C.). The USS composition comprising a high temperature clear, colorless flame is contacted with a carbonaceous material for rapid gasification/reforming thereof. The need for significant superstoichiometric steam addition for temperature control. Methods for controlling a gasification/reforming system to enhance efficiency are described. A USS burner for a fluidized bed gasification/reforming reactor, and methods of construction, are described.

Abstract: An apparatus and method for using staged air combustion. The apparatus includes a burner body (10) secured to a port block (42), and a fuel passageway (12) extending through the burner body (10), terminating in a fuel nozzle (22), which injects fuel into the burner throat (40). Primary air jets (20) are configured to inject primary air into a primary combustion region (24), which is normally in the burner throat (40). A dish with a dish surface (28) is connected to the burner throat (40); the dish surface (28) extending in a divergent angle with respect to a burner centerline (35). Secondary air jets (34) are connected to the air passageway (14) and extend through the port block (42). The secondary air jets (34) inject secondary air into a secondary combustion region (38), which may be at the dish surface (28) or the hot face (30) of the burner.

Abstract: The present invention is an air-staged low NOx burner for firing a gaseous fuel. The burner fires three stages, with the first stage of combustion taking place substantially within a burner cup section of a refractory baffle, the second stage of combustion taking place adjacent to the baffle and downstream of the baffle, and the third stage of combustion within a furnace. The flow of main combustion air adjacent to the baffle creates a negative pressure zone adjacent to the baffle. The present invention is also a method for low NOx staged combustion.

Abstract: The present application relates in general to an apparatus and to methods for testing the performance of an automotive catalytic converter under conditions simulating those which occur in motor vehicles over extended driving conditions. The application provides a novel swirl plate and a novel fuel injector which enable the burner to run stoichiometric for extended periods of time.

Abstract: Burner (1) comprising a head (2) with two groups of holes (4?, 4?) for the passage of fuel and comburent arranged in circles concentric to the burner axis, in which the various groups (5) of holes are separated by circular sectors without holes and the axes of the holes are oblique compared with the burner axis (X) to create special forms of flame.

Abstract: A dual fuel burner including an elongated supply pipe and a gas injector for a boiler furnace having a plurality of peripheral openings around a center opening. The peripheral openings are pitched radially away from the longitudinal axis of the gas injector and also pitched either clockwise or counter-clockwise, to impart a swirling motion to gaseous fuel exiting the injector through the openings. A first sleeve member is concentrically spaced about the supply pipe and the gas injector to form an inner annular passageway for conveying a mixture of primary air and pulverized coal to the furnace combustion zone. A second sleeve member is concentrically spaced about the first sleeve member to form an outer annular passageway for conveying secondary air to the furnace combustion zone, and a plurality of circumferentially spaced vanes mounted within the outer annular passageway for inducing a swirling motion to the secondary air discharging from the outer annular passageway into the furnace combustion zone.

Abstract: A burner apparatus comprising housing defining a chamber and having an air inlet, a peripherally extending baffle disposed in the housing, a first peripherally extending flow passage being formed between the housing and the baffle, the first flow passage being in open communication with the air inlet, a peripherally extending combustion liner disposed inwardly of the baffle, a second peripherally extending flow passage being formed between the liner and the baffle, the second flow passage being in open communication with the first passage, a reversing diverter disposed in the chamber and positioned to direct air flowing from the first flow passage into the second flow passage, a burner assembly mounting plate disposed in the liner and having a first side and a second side, the mounting plate and the liner at least partially defining a burner barrel on the first side of the mounting plate, at least one burner assembly mounted on the burner mounting plate and a plenum on the second side of the mounting plate th

Abstract: An improved burner assembly and process for operating same using a burner design that produces very low levels of undesirable nitrogen oxides is provided. The burner assembly premixes primary fuel and air in a venturi system and recirculates combustion gases back to the burner through a plurality of recirculation conduits where it is mixed with the premix of fuel and air and secondary air prior to combustion in a primary combustion zone. Rapid premixing of the primary fuel and air in the venturi system and the dispersion of the recirculated furnace gases is believed to result in lower peak flame temperatures and therefore minimizing the formation of the pollutants, such as nitrogen oxides.

Abstract: An overfire air injector for use in a fossil fuel-fired combustion device includes a cylindrical nozzle having an outlet end formed with a step diffuser comprising one or more radial steps that enlarge the outlet end of the nozzle. An atomizer lance may be mounted within the nozzle, having a discharge orifice at the outlet end of the nozzle, for supplying a reducing agent to the overfire air to reduce NOx emissions.

Abstract: A nozzle comprising a nozzle body having an inlet face, an outlet face, and an inlet flow axis passing through the inlet and outlet faces, and two or more slots extending through the nozzle body from the inlet face to the outlet face. Each slot has a slot axis and the slot axis of at least one of the slots is not parallel to the inlet flow axis of the nozzle body. In another embodiment, the nozzle comprises a nozzle body having an inlet face, an outlet face, and an inlet flow axis passing through the inlet and outlet faces, and two or more slots extending through the nozzle body from the inlet face to the outlet face, each slot having a slot axis, wherein none of the slots intersect other slots and all of the slots are in fluid flow communication with a common fluid supply conduit. The nozzles may be used to inject secondary fuel in a burner system having a central burner combusting a primary fuel surrounded by secondary fuel injection nozzles.

Abstract: The invention concerns an injector for the use in particular for combustion of corrosive products or a mixture thereof. Said injector comprises a flush cut tube housing, closed at one end, wherein are juxtaposed at least two flush cut tubes, and not more than eight tubes, said tubes perpendicularly passing through the wall, and at least one lateral branch pipe. The invention also concerns the use of said injector for implementing a method for the combustion of chlorine-containing corrosive products or a mixture thereof.

Abstract: A symmetric device for stabilization of a flame includes a primary oxidant pipe and a fuel pipe. The fuel pipe is internal to the primary oxidant pipe creating a primary oxidant conduit. A secondary oxidant pipe is internal to the fuel pipe creating a fuel conduit. A primary oxidant source supplies oxidant to the primary oxidant conduit. A fuel source supplies fuel to the fuel conduit. A secondary oxidant source supplies oxidant to the secondary oxidant pipe. The first oxidant velocity is greater than the second oxidant velocity and the fuel velocity is less than the second oxidant velocity. The primary oxidant pipe end extends past the fuel pipe forward end and the fuel pipe forward end extends past the secondary oxidant pipe end. A mismatch in velocity between fuel and oxidant generates a large scale vortex. An asymmetric embodiment is also provided.

Abstract: A coal gasification feed injector is disclosed having an oxidation-resistant insert which prevents oxidative corrosion of the shield, and the subsequent damage to the underlying face of the feed injector. The life of the feed injector, and thus the length of a single gasification campaign, is thereby extended.

Abstract: A premix burner arrangement with catalytic combustion provides a fuel/air mixture to a combustion chamber of a gas turbine arrangement. The premix burner arrangement includes a premix burner, at least one fuel addition unit, and air inlet openings arranged in such a way that at least one of gaseous and liquid fuel can be mixed with combustion inlet air inside the premix burner to form a fuel/air mixture. The fuel/air mixture exits from the premix burner downstream in the direction towards a combustion chamber positioned after the premix burner arrangement and can be ignited inside the combustion chamber. A catalyzer unit is provided before the entrance of the fuel/air mixture into the combustion chamber. Part of the fuel/air mixture can be introduced into and passed through the catalyzer unit before the catalyzed part of the fuel/air mixture flows together with the remaining portion of the fuel/air mixture into the combustion chamber.

Abstract: A method and apparatus for reducing the temperature of the recirculated flue gas in a flue gas recirculation duct for burners in industrial furnaces such as those used in steam cracking.

Abstract: The present invention relates to a method of operating a burner, which comprises at least one first fuel supply conduit (5) with a first group of fuel outlet openings (6), essentially arranged in the direction of a burner longitudinal axis (3), for a first premix fuel quantity and one or a plurality of second-fuel supply conduits (7) with a second group of fuel outlet openings (8), essentially arranged in the direction of the burner longitudinal axis (3), for a second premix fuel quantity, it being possible to admit fuel to the second fuel supply conduits (7) independently of the first fuel supply conduit (5). In the method, both fuel supply conduits (5, 7) are operated with the same fuel. By means of the present method of operating a burner, optimum mixing conditions can be set even in the case of different loads, gas qualities or gas preheat temperatures.

Abstract: A coherent jet lance and operating method wherein the need for a lance extension is eliminated using a single ring of ports to deliver flame envelope gases around the primary gas jets to maintain the gas jets coherent.

Abstract: An oxygen fueled combustion system includes a furnace having at least one burner, an oxygen supply for supplying oxygen having a predetermined purity, and a carbon based fuel supply for supplying a carbon based fuel. The oxygen and the carbon based fuel are fed into the furnace in a stoichiometric proportion to one another to limit an excess of either the oxygen or the carbon based fuel to less than 5 percent over the stoichiometric proportion. The combustion of the carbon based fuel provides a flame temperature in excess of 4500° F. The exhaust gas stream from the furnace has substantially zero nitrogen-containing combustion produced gaseous compounds from the oxidizing agent and reduced green-house gases. Substantially less carbon based fuel is required than conventional combustion systems without a loss of energy output.

Abstract: An oxy-fuel burner is set forth for providing combustion energy to a glass furnace via the mixing and combustion of a fuel stream and an oxidizer stream. The burner is divided into at least two sections, a substantially vertical section beginning at the bottom or feed end of the burner and a generally shorter, substantially horizontal section terminating at the opposite or discharge end of the burner. In a key embodiment, the vertical section of the burner protrudes into the furnace atmosphere through the underside of an air port, while the horizontal section is pointed toward the interior of the furnace. Depending on the number of burners installed, this allows from partial to full conversion of an air fuel furnace to an oxy-fuel furnace. Also, in a key embodiment, the burner includes an oxidant staging means to introduce oxidizer through a staging conduit running beneath and collateral with the outer conduit.

Abstract: This invention relates to a burner and a method of combustion for producing a flame jet sheet or sheets for various applications in industrial furnaces. The burner has at least one linear or curvilinear flame nozzle having a ratio of width to height of greater than unity in order to produce high velocity and high temperature flame jet sheet or sheets with a well defined geometry. The burner is capable of being scaled to various sizes for various industrial furnace applications due to its geometry.

Abstract: Provided is a burner which includes a pipe having a free end region designed to be housed in a furnace quarl. The pipe includes one or more fuel feed ducts surrounded over part of their length by a sheath which defines an oxidizer feed channel and is fastened to a flange. A jacket is disposed around at least part of the length of the end region so as itself to be housed in the quarl and to define a feed channel for a second oxidizer between the jacket and the internal wall of the quarl. The jacket is fastened to a flange for securing to the quarl and the flange for the sheath is fastened to that for the jacket. The burner has particular applicability in industrial furnaces, especially for melting non-ferrous materials, for rehearing or for annealing.

Abstract: A lance system for lancing gas into a molten metal furnace wherein primary gas is passed into a furnace as a coherent jet enveloped in secondary gas provided into the furnace through a plurality of secondary openings communicating with respective secondary passages having restrictions within the lance set back from the lance face.

Abstract: The invention relates to a method for combustion of fuels of arbitrary state of aggregation, which are burnt with air, possibly with the addition of water, and a reactor therefore, which is intended to optimize the combustion method. A solid, liquid and/or gaseous fuel, possibly water and/or an oxidizing agent are introduced into a reaction chamber (2) in its axial direction under high pressure, the amount of injected pressurized air corresponding to the amount of air necessary for the complete combustion, and the introduced mixture is led to a deflection surface (7) in the interior of the reaction chamber (2), whereby it is atomized, sublimates and/or evaporates and burns explosively, before it can reach the wall or the bottom of the reaction chamber (2).