A burner for the firing of ceramic articles which can be installed in an industrial kiln can include a firing chamber; the burner further including a mixing body; a spark device; a flame detection device; a first tubular discharge element configured to be flown through by a fluid flowing out of the mixing body and provided with a first end and with a second end opposite the first end; wherein the mixing body comprises both a partitioning system of the fuel, configured to divide the fuel in a plurality of first portions, and an oxidizer partitioning system, configured to divide the oxidizer into a plurality of second portions, which are conveyed so as be mixed in at least two different stages with the first portions.

A self-regenerating industrial burner including a head with which at least one first fuel injection nozzle, associable at an inlet with a fuel supplying group, and at least one pair of second nozzles, that can be alternatively and selectively passed through by combustion air and combustion exhaust gases, are associated; a tubular body open at opposite ends, arranged at a front part of the head and coaxial to the at least one first nozzle with an end close to the face of the head at which the first nozzle and the at least one pair of second nozzles protrude and the opposite end distant from the face. Each second nozzle includes at least one first tubular portion, radially lying outside the tubular body and defining at an end at least one first port, alternatively for exit of the combustion air and for inlet of the combustion exhaust gases.

A power generator for use to generate power for metrology hardware like gas meters and flow measuring devices. The power generator may use flame-less combustion that creates heat from fuel gas. The heat causes a temperature differential. In one implementation, the power generator may include a thermal electric generator that generates an electrical signal in response to the temperature differential.

A flameless thermal oxidizer apparatus for a gaseous stream containing hydrogen includes a vessel containing a ceramic matrix bed; and a dip tube extending into the ceramic matrix bed, the dip tube including a first flow path for a first stream having hydrogen therein, and a second flow path for a second stream having an oxidant therein to be mixed with the first stream for introduction into the ceramic matrix bed. A related method 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.

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.

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 directs fuel-oxidant premix into a reaction zone through a first total premix inlet flow area, and causes the premix to combust and form a stable flame projecting into a process chamber through an outlet from the reaction zone. At a time when the process chamber has a temperature at or above an auto-ignition temperature of the fuel, the flame is blown off to initiate diffuse combustion in the process chamber without a stable flame. The flame is blown off by directing the premix into the reaction zone through a second total premix inlet flow area greater than the first total premix inlet flow area.

To improve the efficiency of recuperator burners, preferably to over 80%, a recuperator burner (10) is equipped with an auxiliary heat exchanger (26) which surrounds the recuperator (22), wherein both the recuperator and the auxiliary heat exchanger are preferably formed as purely counterdirectional-flow heat exchangers, wherein the auxiliary heat exchanger (26) has the air supplied to it on the side facing toward the furnace wall (11). The housing (15) around the auxiliary heat exchanger (26) can be cooled with cool air from the inside. In one configuration, the air is initially conducted to a flange cooler (45) to protect the region of the flange (16) against the exhaust-gas temperature. For example, the ceramic recuperator pipe (26) is resiliently pressed, and sealed off, against an outlet-side surface (35) of the auxiliary heat exchanger (26), which preferably has gap-like air ducts (39) formed in flattened pipes (40).

A method supplies reactants, including fuel gas, to burners that discharge the reactants into a furnace process chamber. In a stable flame mode of operation, stable flames are projected from the burners into the furnace process chamber. At a time when the furnace process chamber has a temperature at or above an autoignition temperature of the fuel gas, a diffuse combustion mode is initiated by supplying a selected burner with additional reactants, including reactants diverted from another burner, to blow off the stable flame at the selected burner.