Ammonia Combustion Burner, Boiler, And Boiler Operation Method

Abstract: This ammonia combustion burner, according to at least one embodiment of the present disclosure, is for combusting ammonia fuel using a boiler, and comprises: a combustion air nozzle for jetting combustion air; a first ammonia injection nozzle that is disposed on the inside of the combustion air nozzle and that is for injecting ammonia fuel on the inside of the combustion air nozzle; and a flame holder disposed on the downstream side from the first ammonia injection nozzle. The combustion air nozzle is configured to jet: a partial premixed fuel consisting of a portion of the combustion air and the ammonia fuel injected from the first ammonia injection nozzle; and the remainder of the combustion air.

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