A method for heating a partial oxidation reactor system including a burner system is provided. The method includes utilizing a flue gas stream derived from combustion process using an oxygen rich stream and a hydrocarbon fuel stream. The method may include a first burner system utilized during normal plant operation performing partial combustion, a second burner system utilized for heating during start-up phase performing complete combustion. The first burner system may be different than, or the same as, the second burner system. The method may include a second flue gas stream exiting the partial oxidation reactor, and wherein at least a portion of the second flue gas stream is recycled back to the burner system. The method may include a third flue gas stream derived from a downstream located equipment, wherein at least of portion of the third flue gas stream is recycled back to the burner system.

A system includes a turbine combustor having a first volume configured to receive a combustion fluid and to direct the combustion fluid into a combustion chamber and a second volume configured to receive a first flow of an exhaust gas. The second volume is configured to direct a first portion of the first flow of the exhaust gas into the combustion chamber and to direct a second portion of the first flow of the exhaust gas into a third volume isolated from the first volume. The third volume is in fluid communication with an extraction conduit that is configured to direct the second portion of the first flow of the exhaust gas out of the turbine combustor.

A gaseous fuel-air burner having a bluff body flame stabilizer, and methods of operating the same, are described herein. One device includes a bluff body configured to stabilize a flame produced by the gaseous fuel-air burner, wherein the bluff body has a conical shape configured to stabilize the flame by generating a recirculation zone having a stagnation point where the flame is stabilized.

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 heat exchanger plate for a plate heat exchanger (12) includes a first side, a second side and a center point (P) through which an imaginary center axis (A) extends in a direction perpendicular to a plane of the plate. The plate comprises a first port for a first medium, and at least a second port and a third port for a second medium. The plate further comprises a first sealing arranged on the second side around the first port, a second sealing arranged on the second side at a circumference of the plate, and a closed third sealing arranged between the first and second sealings to form a first heat transfer area and a second heat transfer area separated from the first heat transfer area. The second port is arranged in the first heat transfer area and the third port is arranged in the second heat transfer area.

An evaporator burner (100) for a mobile heating unit which is operated using liquid fuel is provided, said evaporator burner having: a mixture preparation region (2) for the mixing of fuel with combustion air to form a fuel-air mixture; a fuel feed (1) for feeding liquid fuel to the mixture preparation region (2); a combustion air feed (B) for feeding combustion air to the mixture preparation region (2); at least one evaporation surface (8) to which the liquid fuel is fed and which serves for the evaporation of the liquid fuel; a conversion region (3), positioned downstream of the mixture preparation region (2) in terms of flow, for the conversion of the fuel-air mixture into combustion exhaust gases (A) with a release of heat; and an exhaust-gas recirculation means (10; 210) for the recirculation of combustion exhaust gases (A) into the mixture preparation region (2).

A dark radiator includes a burner, a fan and a radiant tube, wherein the burner is connected to a fuel gas supply, wherein the fan is designed to supply the burner with combustion air, wherein the burner is designed to output a flame into the radiant tube, wherein the fuel gas supply is connected to a hydrogen source as a fuel gas source and has a gas nozzle, and wherein an ignition device is arranged spaced apart from the gas nozzle, without the existence of a flame holder.

A dark radiator includes a burner, a fan and a radiant tube, wherein the burner is connected to a fuel gas supply, wherein the fan is designed to supply the burner with combustion air, wherein the burner is designed to output a flame into the radiant tube, wherein the fuel gas supply is connected to a hydrogen source as a fuel gas source and has a gas nozzle, and wherein an ignition device is arranged spaced apart from the gas nozzle, without the existence of a flame holder.

A low NO.sub.X burner in which the amount of air flow to the low NO.sub.X (nitrous oxides) burner can be adjusted (e.g., based on determinations related to the TEG air flow to the low NO.sub.X burner). A low NO.sub.X burner capable of operating in a TEG mode that uses a mixture of fresh air and turbine exhaust gas (TEG) as an oxidizer, and also in a fresh air mode in which fresh air (but not TEG) is used as an oxidizer (e.g., and that may be configured to switch seamlessly between these modes). A method of operating a low NOx burner that that includes using TEG and fresh air as an oxidizer to burn fuel, in a TEG mode and, when conditions dictate, such as when the TEG flow has decreased to a pre-determined level (e.g., zero or close to zero), switching from the TEG mode to a fresh air mode.

A low NO.sub.X burner in which the amount of air flow to the low NO.sub.X (nitrous oxides) burner can be adjusted (e.g., based on determinations related to the TEG air flow to the low NO.sub.X burner). A low NO.sub.X burner capable of operating in a TEG mode that uses a mixture of fresh air and turbine exhaust gas (TEG) as an oxidizer, and also in a fresh air mode in which fresh air (but not TEG) is used as an oxidizer (e.g., and that may be configured to switch seamlessly between these modes). A method of operating a low NOx burner that that includes using TEG and fresh air as an oxidizer to burn fuel, in a TEG mode and, when conditions dictate, such as when the TEG flow has decreased to a pre-determined level (e.g., zero or close to zero), switching from the TEG mode to a fresh air mode.