A burner operating with flameless combustion, comprising a system for sucking the recycling flue gases directly from the combustion chamber by means of an ejector fed with the comburent, a heat exchange system positioned between the recycling flue gases and the comburent, a system for injecting the fuel directly into the recycling flue gases, the latter comprising or not comprising the comburent with formation of a mixture of fuel-recycling flue gases-comburent in the zone around the outlet of the comburent ejector and following introduction of the mixture into the combustion chamber.

Methods and systems of burning a multi-phase hydrocarbon fluid include determining a water content of the multi-phase hydrocarbon fluid, communicating the multiphase hydrocarbon fluid to a fuel port of a burner in a primary fuel flow, initiating a flame at the burner to combust the multi-phase hydrocarbon fluid, communicating an auxiliary fuel source to the burner fuel port in an auxiliary fuel flow, and controlling the primary and auxiliary fuel flows based on the water content of the multi-phase hydrocarbon fluid.

Methods and systems of burning a multi-phase hydrocarbon fluid include determining a water content of the multi-phase hydrocarbon fluid, communicating the multiphase hydrocarbon fluid to a fuel port of a burner in a primary fuel flow, initiating a flame at the burner to combust the multi-phase hydrocarbon fluid, communicating an auxiliary fuel source to the burner fuel port in an auxiliary fuel flow, and controlling the primary and auxiliary fuel flows based on the water content of the multi-phase hydrocarbon fluid.

Disclosed are a pilot fuel injector, and a fuel nozzle and a gas turbine having the same. The pilot fuel injector is mounted on the fuel nozzle to uniformize the flow of the introduced air and to enable uniform mixing with the fuel, so that a fuel mixed air having a high mixing rate is provided to the combustion chamber. The mixing rate of the fuel mixed air directed to the combustion chamber is increased, thereby suppressing the generation of nitrogen oxides and preventing the flame stagnation.

A fuel supply system for a gas turbine engine comprises a housing having a housing interior chamber and a fuel swirler disposed inside the housing interior chamber. The fuel swirler has an upstream end and downstream end relative to a fuel flow direction along a fuel nozzle longitudinal axis. The fuel swirler has a first axial fuel passage along the longitudinal axis in fluid communication with a first fuel supply and terminating at a first fuel outlet at the downstream end, a second axial fuel passage along the longitudinal axis in fluid communication with a second fuel supply and terminating at a second fuel outlet at the downstream end, and a plurality of compressed air outlets at the downstream end. The first fuel outlet is positioned on an outermost surface of the fuel swirler and leads directly to a mixing site downstream of the fuel swirler.

A switching device includes a rod, a rotating shaft, and a valve assembly including a cover and a plug member. The cover engaged with the valve body has a first block section, a second block section, a space, and a threaded hole communicates with the space. The plug member is rotatably provided in a chamber of the cover, changing an area of an opening of an inlet hole. The rotating shaft has a projection is adapted to drive the plug member to rotate. A rod body of the rod has a threaded section engaged with the threaded hole. When the projection abuts against the first block section, the plug member seals the inlet hole. When the projection abuts against the rod, the plug member changes the area to a first area. When the projection abuts against the second block section, the plug member changes the area to a second area.

A switching device includes a rod, a rotating shaft, and a valve assembly including a cover and a plug member. The cover engaged with the valve body has a first block section, a second block section, a space, and a threaded hole communicates with the space. The plug member is rotatably provided in a chamber of the cover, changing an area of an opening of an inlet hole. The rotating shaft has a projection is adapted to drive the plug member to rotate. A rod body of the rod has a threaded section engaged with the threaded hole. When the projection abuts against the first block section, the plug member seals the inlet hole. When the projection abuts against the rod, the plug member changes the area to a first area. When the projection abuts against the second block section, the plug member changes the area to a second area.

In a combustor including a plurality of combustion nozzles, and a gas turbine including the same, fuel can be uniformly mixed with compressed air for each combustion nozzle. The combustor includes a plurality of combustion nozzles arranged in a nozzle casing, and each combustion nozzle includes a nozzle shroud for taking in compressed air; an injection cylinder concentrically disposed in the nozzle shroud and configured to be supplied with fuel for mixing with the compressed air; and a plurality of swirlers circumferentially arranged around the injection cylinder and configured to inject the fuel from the injection cylinder into the shroud. The plurality of swirlers divide an interior space of the nozzle shroud into a plurality of fluid flow regions, and include a pair of adjacent swirlers spaced apart from each other by a circumferential distance that differs from a circumferential distance between another pair of adjacent swirlers.

A method for converting a gas boiler into a liquid-fuel boiler. The gas boiler comprises an enclosure which accommodates a firebox, which forms a combustion chamber and is provided with a supporting wall which supports a burner provided with a combustion head, which protrudes from the supporting wall and has a substantially cylindrical shape with an internal cavity formed axially; the enclosure is provided with a passage in which an atomizing nozzle, connected to a liquid fuel supply duct, and at least one ignition electrode are inserted from the outside; a snorkel-shaped body is also applied to the end of the combustion head that is opposite with respect to the supporting wall and the supply duct is connected supply duct is connected to a pressurized source of liquid fuel.

An arrangement and a method for handling purged alcohol-based fuel originating from an alcohol fuel system configured to fuel an alcohol fueled engine, the arrangement comprising: a boiler system comprising a burner and a fuel inlet configured to selectively supply a fuel and thereby selectively sustain a primary flame in the burner for production of heat and/or steam in the boiler system, a purge connection configured to receive a purge mixture purged from the alcohol fuel system using an inert gas, the purge mixture comprising a mixture of the inert gas and purged alcohol-based fuel, and a vapor-liquid separator.