Besides a better burner comprising the swirler, a method for operation of these a burner is an objective of invention. Depending on the operating disease and weight aim of a gas turbine, the fuel-flow injected through a burner varies in a number of.
g. in the event the clover dating visitors turbine are doing at partial load, in a way that the gas is during one embodiment injected merely regarding the suction side or perhaps the pressure area and/or merely through every next or next fuel nozzle of a swirl vane and/or that energy is injected through the gas nozzles of each and every 2nd or 3rd vane of burner.
More, the blend of both ways to decrease gas shot is recommended: For reasonable fuel mass passes the gas was inserted through every next or next gasoline nozzle of a vane and simply through the gas nozzles of each and every second or next vane of the burner are proposed. At an increased size movement the quantity of vanes utilized for fuel treatment right after which the quantity of nozzles used for gasoline treatment per vane tends to be improved.
The staging between your sucking and force edges and/or various nozzles enables more optimization of premixing and command over the combustion characteristics. Gasoline staging permits controlling emissions and pulsations.
In another embodiment, different gas is injected through sucking sides and through force side and/or through different nozzles of this swirl vanes.
Relating to one embodiment for the functioning means, the quantity of gasoline injections nozzles through which energy are injected is determined as function of the entire inserted fuel flow to be able to guarantee at least stream into the operative nozzles.
Instead, at a heightened bulk circulation the sheer number of nozzles used in fuel shot per vane is increasing and the sheer number of vanes employed for gasoline shot and will getting increased. Activation and deactivation of nozzles can for example be determined based on matching threshold energy circulates.
Typically, no less than the nose injects gasoline (water or fuel) and/or carrier gas in essence perpendicular with the main circulation movement (cross-flow injection). One nozzle may, but furthermore inject gasoline and/or provider petrol at an inclination position.
Ideally, the vane expands over the entire movement cross section between contrary walls on the burner. elizabeth. from internal to exterior restrictive wall structure).
A straightforward operation where in actuality the movement was similarly distributed to burner nozzles therefore the circulation through each nozzle try proportional into the utter flow can result in undesirably tiny movement velocities at specific nozzles, impairing the injections high quality and penetration degree from the gasoline in to the air flow
One or more slit-shaped retailer orifice is, in the sense of a nozzle, organized in the trailing side. A split-shaped or elongated position nose is normally positioned to increase across the trailing edge of the vane.
The nozzles can include numerous retailer orifices for different fuel type and carrier atmosphere. In one single embodiment a primary nose for injections of liquid fuel or gasoline gasoline, another nose for shot of company atmosphere, which encloses initial nose, is positioned at the trailing edge.
In another embodiment an initial nozzle for treatment of liquid fuel, the second nose for shot of a gaseous gas, which encloses the initial nose, and a 3rd nose for shot of company air, which encloses one nozzle, while the next nozzle, are organized on trailing edge.
Preferably, the fuel nozzles become distributed on top of the whole distance for the swirl vane (i
More over, it really is desired that the gas try a highly reactive energy, ideally preferred from the team including natural gas fuels, hydrogen rich fuels, and hydrogen energy.