Besides a greater burner comprising the swirler, a technique for operation of such a burner is actually a goal of development. Depending on the functioning disease and weight aim of a gas turbine, the fuel-flow injected through a burner may differ in a wide range.
grams. when the turbine was executing at limited burden, such that the energy is within one embodiment inserted merely in the suction area or the stress side and/or only through every second or third fuel nozzle of a swirl vane and/or that gasoline is just inserted through the energy nozzles of any second or 3rd vane of burner.
More, the combination of both strategies to lessen fuel treatment is recommended: For lower energy mass passes the gasoline are injected through every second or next energy nose of a vane and simply through the energy nozzles of every 2nd or next vane of burner try recommended. At an elevated bulk movement how many vanes useful for gasoline injection right after which the number of nozzles useful for gasoline injections per vane could be improved.
The staging between the sucking and stress edges and/or different nozzles allows more optimization associated with premixing and power over the combustion characteristics. Gas staging allows regulating emissions and pulsations.
In another embodiment, fastflirting various fuel are inserted through sucking side and through force sides and/or through various nozzles regarding the swirl vanes.
According to one embodiment of this running process, the quantity of energy treatment nozzles whereby energy are injected is determined as function of the full total injected fuel flow so that you can guarantee a minimum movement during the operative nozzles.
On the other hand, at a greater bulk circulation the amount of nozzles useful for gasoline shot per vane are enhanced after which the amount of vanes used in gasoline shot and can become increased. Activation and deactivation of nozzles can eg be determined according to corresponding limit energy circulates.
Typically, at the least the nose injects energy (water or gas) and/or carrier gas essentially perpendicular for the major stream direction (cross-flow injection). One or more nozzle may, but additionally inject energy and/or company petrol at an inclination direction.
Ideally, the vane extends throughout the whole stream cross section between reverse structure associated with burner. elizabeth. from inner to exterior restrictive wall surface).
A straightforward operation where circulation is actually equally distributed to all or any burner nozzles plus the movement through each nozzle try proportional with the complete stream can cause undesirably small flow velocities at specific nozzles, impairing the injection high quality and entrance range with the energy in to the venting
A minumum of one slit-shaped socket orifice tends to be, in the sense of a nozzle, organized at trailing advantage. A split-shaped or elongated position nose is typically arranged to give over the trailing edge of the vane.
The nozzles can consist of numerous retailer orifices a variety of gasoline type and company environment. Within one embodiment a primary nose for shot of liquid fuel or gas fuel, an additional nozzle for treatment of company environment, which encloses one nozzle, is organized on trailing sides.
An additional embodiment an initial nose for injection of liquid fuel, another nose for shot of a gaseous gasoline, which encloses initial nose, and a 3rd nose for injections of carrier environment, which encloses 1st nozzle, additionally the next nozzle, were organized from the trailing sides.
Preferably, the gas nozzles become marketed on the whole width in the swirl vane (i
Moreover, it is chosen the gas was a very activated fuel, preferably selected from team including natural gas fuels, hydrogen wealthy fuels, and hydrogen fuel.