Abstract: Methods, burner, apparatuses, and systems are provided for controlling a velocity of a jet of gas exiting a burner when the gas is heated or not and at a corresponding second higher temperature or lower first temperature. Through the use of a temperature-sensitive magnetic valve, the flow of a gas can be redirected to maintain velocity of the gas as delivered to a combustion chamber based on the temperature of the gas. The temperature-sensitive magnetic valve can redirect flow of the gas based on the magnetic state of a ferromagnetic material. The state of the temperature-sensitive magnetic valve changes based on the temperature of the gas to maintain the velocity of the gas delivered through an outlet of the burner to the combustion chamber. Thus, heated gases and standard temperature gases can be delivered at approximately equal velocities thus maintaining flame size and shape.

Abstract: Methods, burner, apparatuses, and systems are provided for controlling a velocity of a jet of gas exiting a burner when the gas is heated or not and at a corresponding second higher temperature or lower first temperature. Through the use of a temperature-sensitive magnetic valve, the flow of a gas can be redirected to maintain velocity of the gas as delivered to a combustion chamber based on the temperature of the gas. The temperature-sensitive magnetic valve can redirect flow of the gas based on the magnetic state of a ferromagnetic material. The state of the temperature-sensitive magnetic valve changes based on the temperature of the gas to maintain the velocity of the gas delivered through an outlet of the burner to the combustion chamber. Thus, heated gases and standard temperature gases can be delivered at approximately equal velocities thus maintaining flame size and shape.

Abstract: Methods, burner, apparatuses, and systems are provided for controlling a velocity of a jet of gas exiting a burner when the gas is heated or not and at a corresponding second higher temperature or lower first temperature. Through the use of a temperature-sensitive magnetic valve, the flow of a gas can be redirected to maintain velocity of the gas as delivered to a combustion chamber based on the temperature of the gas. The temperature-sensitive magnetic valve can redirect flow of the gas based on the magnetic state of a ferromagnetic material. The state of the temperature-sensitive magnetic valve changes based on the temperature of the gas to maintain the velocity of the gas delivered through an outlet of the burner to the combustion chamber. Thus, heated gases and standard temperature gases can be delivered at approximately equal velocities thus maintaining flame size and shape.

Abstract: Methods, burner, apparatuses, and systems are provided for controlling a velocity of a jet of gas exiting a burner when the gas is heated or not and at a corresponding second higher temperature or lower first temperature. Through the use of a temperature-sensitive magnetic valve, the flow of a gas can be redirected to maintain velocity of the gas as delivered to a combustion chamber based on the temperature of the gas. The temperature-sensitive magnetic valve can redirect flow of the gas based on the magnetic state of a ferromagnetic material. The state of the temperature-sensitive magnetic valve changes based on the temperature of the gas to maintain the velocity of the gas delivered through an outlet of the burner to the combustion chamber. Thus, heated gases and standard temperature gases can be delivered at approximately equal velocities thus maintaining flame size and shape.

Abstract: A method and burner for combusting fuels having a heating value of <80 BTU/scf (<2.98 MJ/Nm3) in which the fuel premixed with air is injected into a porous inert media so that the fuel is combusted with the air. Oxygen may be optionally injected into the porous inert media separately from the premixed air/fuel.

Abstract: Methods and systems for controlling jet velocity of a preheated gas are described herein. Through the use of a temperature-sensitive bimetallic valve, the flow of a gas can be redirected to maintain jet velocity based on temperature. The temperature-sensitive bimetallic valve can redirect flow of the gas based on the position of a bimetallic strip. The bimetallic strip and a connected blocking device can change position based on the temperature of the gas. The position of the bimetallic strip and the blocking device control the size of the port that the gas is delivered to the burner through. Thus, preheated gas and standard temperature gas can be delivered at appropriate velocities based on the needs of the user.

Abstract: Methods and systems for controlling jet velocity at a burner when using heated gases and standard temperature gases are described herein. Through the use of a temperature-sensitive magnetic valve, the flow of a gas can be redirected to reduce velocity based on temperature. The temperature-sensitive magnetic valve can redirect flow of the gas based on the magnetic state of a curie material. The curie material changes the state of the temperature-sensitive magnetic valve based on the temperature of the gas. Thus, heated gases and standard temperature gases can be delivered at approximately equal velocities thus maintaining flame size and shape.

Abstract: A method and apparatus for controlling a flame stability at a gas turbine generator is disclosed. The method includes forming combustible mixtures at a plurality of fuel nozzles of a combustor of the gas turbine generator; altering an oxygen concentration of at least one of the combustible mixtures at a selected fuel nozzle of the plurality of fuel nozzles; and burning the combustible mixtures at the plurality of fuel nozzles to control the flame stability at the gas turbine generator.

Abstract: The present application provides a flexible combustor fuel nozzle. The flexible combustor fuel nozzle may include a main passage in communication with a source of natural gas and a source of low BTU fuel, a secondary passage surrounding the main passage and in communication with the source of low BTU fuel and a source of purge air, and a tertiary passage surrounding the secondary passage and in communication with the source of low BTU fuel, the source of purge air, and a source of diluent.

Abstract: The present application provides a flexible combustor fuel nozzle. The flexible combustor fuel nozzle may include a main passage in communication with a source of natural gas and a source of low BTU fuel, a secondary passage surrounding the main passage and in communication with the source of low BTU fuel and a source of purge air, and a tertiary passage surrounding the secondary passage and in communication with the source of low BTU fuel, the source of purge air, and a source of diluent.

Abstract: A passive noise attenuation device and system is provided having a reticulated open-cell porous structure configured to acts as a passive control device in order to mitigate combustion noise and instability problems in combustion systems. A porous inert media structure is placed downstream of the reaction zone of a combustion chamber to dissipate noise and/or instability generated upstream in the flame. The porous inert media also limits and/or disintegrates vortical structures in the flame to produce a homogeneous flow field to facilitate distributed reaction zones.