Method and burner arrangement for the production of hot gas, and use of said method
View Patent ↗A method for producing hot gas for operating a turbomachine fired with at least one combustion chamber includes premixing a fuel with a plurality of operating gases by introducing fuel into the plurality of operating gases in a mixing chamber disposed upstream of the combustion chamber using a burner arrangement, wherein the fuel includes at least one of a combustible gas and a H 2 -rich fuel; and introducing the premixed fuel into the combustion chamber.
1. A method for producing hot gas for operating a turbomachine fired using at least one combustion chamber, the method comprising:
providing a burner arrangement upstream of the combustion chamber, the burner arrangement including a swirler and a mixing tube;
premixing a fuel including natural gas with air in the swirler so as to create an air/fuel mixture;
injecting an H 2 -rich fuel into the air/fuel mixture so as to produce a premixed fuel by injecting the H 2 -rich fuel into the mixing tube; and
introducing the premixed fuel into the combustion chamber.
2. The method as recited in claim 1 , wherein the injecting the H 2 -rich fuel includes injecting a ratio of the H 2 -rich fuel of at most 30% to the natural gas.
3. The method as recited in claim 1 , wherein the introducing the fuel is performed at an angle.
4. The method as recited in claim 3 , wherein the angle is between 20° and 120°.
5. The method as recited in claim 1 , wherein the burner arrangement includes a fuel lance projecting into a hot gas flow, and further comprising injecting the fuel mixture into the hot gas flow using the fuel lance.
6. The method as recited in claim 5 , wherein the at least one combustion chamber includes a second combustion chamber, and further comprising operating the second combustion chamber using a self-igniting combustion process, wherein the introducing is performed using the at least one fuel lance.
7. The method as recited in claim 6 , further comprising operating at least one vortex generator upstream of fuel lance.
8. The method as recited in claim 6 , further comprising disposing at least one further injection device downstream of the fuel lance.
9. The method as recited in claim 6 , wherein the introducing includes feeding air with the at least one fuel.
10. The method as recited in claim 9 , further comprising feeding air into the at least one fuel separately.
11. The method as recited in claim 9 , further comprising admixing air with the at least one fuel.