Patent
Main stage fuel mixer with premixing transition for dry low Nox (DLN) combustors
David J. Amos,Mitchell O. Stokes +1 more
Reads0
Chats0
TLDR
In this paper, a main stage fuel mixer that reduces NO x and CO emissions of a gas turbine combustor by providing a more homogeneous fuel/air mixture for main stage combustion is provided.Abstract:
A main stage fuel mixer that reduces NO x and CO emissions of a gas turbine combustor by providing a more homogeneous fuel/air mixture for main stage combustion is provided. A gas turbine combustor according to the present invention includes a nozzle housing having a nozzle housing base, a plurality of main nozzles, and a main stage fuel mixer. A main combustion zone is located adjacent to the nozzle housing. Each main nozzle extends through the nozzle housing and is attached to the nozzle housing base. The main stage fuel mixer has a plurality of inlets, each of which is adapted to receive a flow of gas, and an outlet adjacent to the main combustion zone. The main stage fuel mixer has a plurality of transition ducts, each associated with one inlet. Each transition duct provides fluid communication from the inlet associated with the transition duct to the outlet.read more
Citations
More filters
Patent
Gas turbine combustor
Eigo Takasago Res. Dvlpt Ctre Mitsubishi Kato,Mitsuru Takasago Res. Dvlpt Ctre Mitsubishi Kondo,T. Takasago Res Dvlpt Ctre Mitsubishi Ishiguro,Masaki Ono,Tetsu Konishi,T. Takasago Machinery Works Mitsubishi Iwamoto +5 more
TL;DR: In this article, a gas turbine combustor with a fuel injection nozzle using a fluid other than liquid fuel to atomize the liquid fuel and that can suppress a reduction in power generation efficiency resulting from a heat loss while promoting the atomization of liquid fuel.
Patent
Fuel nozzle assembly for reduced exhaust emissions
Harjit S. Hura,Paul Edward Sabla,James Neil Cooper,Beverly Stephenson Duncan,Hukam Mongia,Lohmueller Steven Joseph +5 more
TL;DR: A two-stage fuel nozzle assembly for a gas turbine engine is described in this article, where the primary combustion region is centrally positioned and includes a fuel injector that is surrounded by one or more swirl chambers to provide a fuel air mixture that is ignited to define a first stage combustion zone.
Patent
Turbine containing system and an injector therefor
TL;DR: In this article, a turbine containing a secondary combustion system is described, which includes an injector for transversely injecting a secondary fuel into a stream of combustion products of the primary combustion system, and at least one exit for communication between said fuel mixture passage and said stream of primary combustion products.
Patent
Dynamic control system and method for multi-combustor catalytic gas turbine engine
David K. Yee,Dag Reppen +1 more
TL;DR: In this article, a method of controlling a catalytic combustion system includes determining a characteristic of a fuel-air mixture downstream of a pre-burner (2-20) associated with a CCA, and adjusting the fuel flow to adjust the preburner's outlet temperature, or the position of the combustion wave in a burnout zone.
Patent
Combustor and gas turbine
Yuichiro Kimura,Takiguchi Satoshi,Keisuke Matsuyama,Satoshi Mizukami,Shinji Akamatsu,Kenji Sato,Hikaru Katano,Shigemi Mandai +7 more
TL;DR: In this article, a combustor equipped with a combustion cylinder and an acoustic liner is provided on the outside of the combustion cylinder, with a space formed between the outer circumferential surface of the combustor and the liner.
References
More filters
Patent
Dual fuel ultra-low NOx combustor
TL;DR: In this paper, a pre-mixing zone has three concentric annular passages that surround a central diffusion-type dual fuel nozzle and swirl vanes are arrayed around the inner and outer passages and around each of the fuel nozzles.
Patent
Smoke reduction combustion chamber
TL;DR: A combustion chamber either an annular or can-annular type, which substantially eliminates the production of smoke while maintaining all other performance parameters of the combustion chamber was provided with a front end configuration which substantially eliminated local fuel rich regions and which provided a means for mixing the incoming fuel and air as discussed by the authors.
Patent
Staged, mixed combustor assembly having low emissions
TL;DR: In this paper, a combustion assembly includes a combustor having inner and outer pilot liners, each being in the form of a lobed mixer having outer and inner cold and hot chutes.
Patent
Gas turbine combustor having multiple burner groups and independently operable pilot fuel injection systems
TL;DR: In this article, a gas turbine combustor is composed of at least two systems with different hole diameters, and the fuel flow rate of each system can be controlled independently, even if the operation of main burners is switched in accordance with high or low load, the pilot fuel is selected accordingly.
Patent
Aerodynamic fuel injection system for a gas turbine combustion chamber
TL;DR: In this paper, a fuel injection system is disclosed which incorporates a plurality of bowl or shroud members extending upstream of an end wall of the combustion chamber between the end wall and an air swirler.