A burner includes an oxidant feed passage, a fuel feed passage surrounding the oxidant feed passage, an air feed surrounding the fuel feed passage, a movable air flow diverter and, optionally, a flame nozzle. The movable air flow diverter and/or flame nozzle are independently configured to create one or a plurality of gas recirculation regions adjacent the downstream tip of the burner to improve the mixing and reaction of the fuel and oxidant, and overall combustion process efficiency. A related furnace and method for generating a stable flame with the burner are also provided.

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.

A radiant burner for treating an effluent gas stream from a manufacturing processing tool includes a plurality of treatment chambers, each treatment chamber having an effluent stream inlet for supplying a respective portion of the effluent gas stream to that treatment chamber for treatment therewithin. In this way, multiple treatment chambers may be provided, each of which treats part of the effluent stream. Accordingly, the number of treatment chambers can be selected to match the flow rate of the effluent gas stream from any particular processing tool. This provides an architecture which is reliably scalable to suit the needs of any effluent gas stream flow rate.

A nameless combustor usable with multiple fuels comprises a combustion chamber and fuel lines in communication with the chamber.

Flue gases are produced in a combustion chamber of a burner unit, in particular for the combustion of exhaust air. Combustion gas can be supplied to a gas burner via a combustion gas line and feed air, in particular exhaust air that can be used as feed air, is supplied to said burner via a feed air line. The feed air is divided into primary air and secondary air by a device. The primary air is mixed with the combustion gas, in a mixing zone, to form a primary air/combustion gas mixture, said primary air/combustion gas mixture being supplied to the combustion chamber. A flue gas re-circulation system comprises a through-flow chamber which is connected to the combustion chamber and in which the secondary air is mixed with the flue gases occurring in the combustion chamber to form a secondary air/flue-gas mixture. The secondary air/flue-gas mixture is supplied to the primary air/combustion gas mixture in the combustion chamber by means of a device. At least one internal cylindrical surface of the through-flow chamber forms a Coanda profile in the direction of flow. A device for the temperature control of objects, in particular for drying painted vehicle bodies, comprises a temperature-control tunnel that is accommodated in a housing and that defines at least one tunnel section comprising at least one air outlet and at least one air inlet. A heating assembly, in which a hot primary gas can be generated by means of a burner unit of this type, is associated with the tunnel section.

A method for oxidizing a waste stream having hydrogen therein includes flowing the waste stream with hydrogen into an oxidant stream for mixing the streams in a proportion for providing a mixture below lower flammability limits (LFL), including the LFL of hydrogen; and introducing the mixed streams into a ceramic matrix bed of a flameless thermal oxidizer maintained at a temperature above auto-ignition temperature of the mixture. A related apparatus is also provided.

To heat a furnace chamber (16) indirectly using radiant tubes (11) to (14), heating energy is transferred through the radiant tube wall into the furnace chamber (16). During steady-state operation, the temperature in the radiant tube (11) to (14) and on its surface is higher than the furnace, depending on the specific heat output of the radiant tube (11) to (14). At a furnace temperature of 770 C. and a heat output of 50 kW/m2, the radiant tube has a temperature of 900 C. The radiant tube (11) to (14) can thus operate continuously with flameless oxidation at this output, even though the temperature in the furnace is only 100 C. However, if the radiant tube (11) to (14) has cooled to the furnace temperature of 770 C. during a break in burning, deflagration is avoided when the associated burner is ignited by initially operating said burner with a flame for a few seconds.

Burner assembly and method for combustion of gaseous of liquid fuel The invention relates to a burner assembly (1) and a method for combustion of gaseous or liquid fuel to heat an industrial furnace (9) having a combustion chamber (2), at least one main combustion air inlet (3) for the supply of preheat-ed combustion air (4) into the combustion chamber (2), a burner (5) with at least one fuel feed (7) and at least one air feed (8) for supply of fuel and primary air into a the combustion chamber (2), wherein the burner (5) is positioned adjacent to a combustion zone of the combustion chamber (2) such that the combustion air (4) flowing into the combustion chamber (2) through the main combustion air inlet (3) is passing the burner (5) in the combustion zone and is then deflected such that the flow of preheated combustion air and the smaller flows of fuel and primary air are flowing mainly in parallel from the burner (5) to the furnace (9), and a control unit for controlling the supply of fuel and maybe primary air into the combustion chamber (2). The control unit is adapted to supply the fuel and/or the primary air from the fuel and/or air feed (7, 8) into the combustion chamber (2) with an exit velocity higher than 150 m/s.

An apparatus coupled to a chamber for processing extreme ultraviolet radiation includes a gas inlet configured to direct exhaust gases from the chamber into a combustion zone. The combustion zone is configured to flamelessly ignite the exhaust gases. An air inlet is configured to direct a mixture of air and a fuel into the combustion zone. A control valve is configured to change a volume of fluid exhausted from the combustion zone. A controller configured to control the control valve so as to prevent a pressure inside the combustion zone from exceeding a preset pressure value is provided.

An exemplary embodiment can be an exemplary method, which can include, for example, generating a cool flame(s) using a plasma-assisted combustion, and maintaining the cool flame(s). The cool flame(s) can have a temperature below about 1050 Kelvin, which can be about 700 Kelvin. The cool flame(s) can be further generated using a heated counterflow burning arrangement and a an ozone generating arrangement. The heated counterflow burning arrangement can include a liquid fuel vaporization arrangement. The ozone generating arrangement can include a micro plasma dielectric barrier discharge arrangement. The plasma-assisted combustion can be generated using (i) liquid n-heptane, (i) heated nitrogen, and (iii) ozone.