Gas Turbine Burner and Method of Operating a Gas Turbine Burner
OwnerAndreas Heilos, Werner Krebs +1inventors
InventorsAndreas Heilos, Werner Krebs, Jaap Van Kampen
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Abstract
The invention is based on a gas turbine burner comprising a combustion zone for burning a mixture consisting of combustion exhaust gas to which fuel gas is added, and comprising a fuel intermixing arrangement having a fuel nozzle for spraying the fuel gas into the combustion exhaust gas. In order to achieve low-pollutant and uniform combustion, it is proposed that the fuel intermixing arrangement be designed for spraying the fuel gas into the combustion exhaust gas at at least 0.2 times the speed of sound.
Claims21
-18. (canceled)
A gas turbine burner comprising:
- a combustion zone for burning a mixture consisting of combustion exhaust gas to which a fuel gas is added;
- and
- a fuel intermixing arrangement having a fuel nozzle that sprays the fuel gas into the combustion exhaust gas at at least 0.2 times the speed of sound, wherein the spray jet consists of fuel gas comprises
- at least one inner jet consisting of fuel-containing gas, and
- an outer jet surrounding the inner jet consisting of cooling gas, the cooling gas being at a lower temperature than the combustion exhaust gas.
A method for operating a gas turbine burner comprising:
- providing a hot combustion gas;
- arranging a combustion zone such that the hot combustion gas is received by the combustion zone;
- mixing a fuel gas with the hot combustion gas within a combustion zone wherein the fuel gas is sprayed into the combustion exhaust gas at at least 0.2 times the speed of sound, wherein the fuel gas spray jet comprises:
- at least one inner jet consisting of a fuel-containing gas and
- an outer jet surrounding the inner jet consisting of a cooling gas that is at a lower temperature than the combustion exhaust gas;
- and
- burning the fuel gas within the combustion zone.
Dependencies are inferred from the claim text.