US 12,404,813 B2
Control method for gas turbine combustor and control device for gas turbine combustor
Tatsuya Hagita, Tokyo (JP); Yoshitaka Hirata, Tokyo (JP); and Mitsuhiro Karishuku, Tokyo (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
Appl. No. 18/727,215
Filed by MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
PCT Filed Jan. 13, 2023, PCT No. PCT/JP2023/000738
§ 371(c)(1), (2) Date Jul. 8, 2024,
PCT Pub. No. WO2023/140183, PCT Pub. Date Jul. 27, 2023.
Claims priority of application No. 2022-006878 (JP), filed on Jan. 20, 2022.
Prior Publication US 2025/0092834 A1, Mar. 20, 2025
Int. Cl. F02C 9/40 (2006.01); F02C 3/20 (2006.01); F02C 3/22 (2006.01); F02C 7/228 (2006.01); F02C 7/232 (2006.01); F02C 9/26 (2006.01); F02C 9/32 (2006.01); F23R 3/28 (2006.01); F23R 3/34 (2006.01); F23R 3/36 (2006.01)
CPC F02C 9/40 (2013.01) [F02C 3/20 (2013.01); F02C 3/22 (2013.01); F02C 7/228 (2013.01); F02C 7/232 (2013.01); F02C 9/263 (2013.01); F02C 9/32 (2013.01); F23R 3/286 (2013.01); F23R 3/34 (2013.01); F23R 3/36 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A control method for a gas turbine combustor that includes an air-hole plate in which a plurality of air holes are formed and a plurality of fuel nozzles corresponding to the plurality of air holes, respectively, and that combusts a hydrogen fuel and another fuel other than the hydrogen fuel, in which the plurality of air holes include a plurality of first air holes each having an inclined passageway that extends in a direction inclined with respect to a central axis of the air-hole plate in a region including at least an exit end in a passageway from an entry end to the exit end, and a plurality of second air holes that extend parallel to the central axis, and the plurality of fuel nozzles include a plurality of first fuel nozzles corresponding to the plurality of first air holes, respectively, and a plurality of second fuel nozzles corresponding to the plurality of second air holes, respectively, the control method comprising:
supplying the other fuel to the plurality of first fuel nozzles and the plurality of second fuel nozzles when the other fuel is exclusively combusted, and
supplying no hydrogen fuel to the plurality of first fuel nozzles when the hydrogen fuel is exclusively combusted.