Self-stabilized micromixer
AssigneeGeneral Electric Company
InventorsBorys SHERSHNYOV, Leonid ZVEDENUK
Life of this patent
Estimating the term…
Abstract
A micromixer of a premixer includes a plurality of enhanced minitubes and a plurality of unenhanced minitubes, both of which are arranged to deliver a premixed mixture of fuel and oxidizer to a combustion zone of a combustor. Both the enhanced and unenhanced minitubes are commonly bundled so as to function as a single fuel nozzle of the premixer. Each enhanced minitube includes a turbulence enhancer arranged to disturb a flow of the premixed mixture at the exit of thereof. This intensifies the turbulent jet interaction of the fuel and oxidizer mixture as the mixture suddenly expands from the enhanced minitube, thus providing aerodynamic combustion stabilization.
Claims18
A micromixer of a premixer of a gas turbine system, the micromixer arranged to deliver a premixed mixture of fuel and oxidizer to a combustion zone of a combustor, the micromixer comprising:
- a plurality of enhanced minitubes arranged to deliver the mixture to the combustion zone;
- and
- a plurality of unenhanced minitubes arranged to deliver the mixture to the combustion zone;
- wherein both the enhanced and unenhanced minitubes are commonly bundled so as to function as a single fuel nozzle of the premixer, and
- wherein each enhanced minitube comprises one or more turbulence enhancers arranged to disturb a flow of the mixture as the mixture exits the enhanced minitubes.
A premixer of a gas turbine system, the premixer arranged to deliver a premixed mixture of fuel and oxidizer to a combustion zone of a combustor for combustion, the premixer comprising:
- at least one micromixer on a face of the premixer, wherein the micromixer comprises:
- a plurality of enhanced minitubes arranged to deliver the mixture to the combustion zone;
- and
- a plurality of unenhanced minitubes arranged to deliver the mixture to the combustion zone;
- wherein both the enhanced and unenhanced minitubes are commonly bundled so as to function as a single fuel nozzle of the premixer, and
- wherein each enhanced minitube comprises one or more turbulence enhancers arranged to disturb a flow of the mixture as the mixture exits the enhanced minitubes.
Dependencies are inferred from the claim text.