Power plants – Combustion products used as motive fluid – Combustion products generator
Reexamination Certificate
2002-02-27
2004-11-09
Koczo, Michael (Department: 3746)
Power plants
Combustion products used as motive fluid
Combustion products generator
C060S746000
Reexamination Certificate
active
06813889
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a gas turbine combustor and an operating method thereof.
2. Description of Prior Art
The present invention specifically relates to a low NOx type gas turbine combustor which emits low levels of nitrogen oxides. The prior art has been disclosed in Japanese Application Patent Laid-Open Publication No. Hei 05-172331.
In a gas turbine combustor, since the turndown ratio from startup to the rated load condition is large, a diffusion combustion system which directly injects fuel into a combustion chamber has been widely employed so as to ensure combustion stability in a wide area. Also, a premixed combustion system has been made available.
In said prior art technology, a diffusion combustion system has a problem of high level NOx. A premixed combustion system also has problems of combustion stability, such as flash back, and flame stabilization during the startup operation and partial loading operation. In actual operation, it is preferable to simultaneously solve those problems.
SUMMARY OF THE INVENTION
The main purpose of the present invention is to provide a gas turbine combustor having low level NOx emission and good combustion stability and an operating method thereof.
The present invention provides a gas turbine combustor having a combustion chamber into which fuel and air are supplied, wherein the fuel and the air are supplied into said combustion chamber as a plurality of coaxial jets.
Further, a method of operating a gas turbine combustor according to the present invention is the method of operating a gas turbine combustor having a combustion chamber into which fuel and air are supplied, wherein the fuel and the air are supplied into said combustion chamber as a plurality of coaxial jets.
REFERENCES:
patent: 5321950 (1994-06-01), Shekleton et al.
patent: 5339635 (1994-08-01), Iwai et al.
patent: RE34962 (1995-06-01), Shekleton et al.
patent: 5651252 (1997-07-01), Ansart et al.
patent: 5722230 (1998-03-01), Cohen et al.
patent: 5899074 (1999-05-01), Komatsu et al.
patent: 6389815 (2002-05-01), Hura et al.
patent: 6481209 (2002-11-01), Johnson et al.
H. Inoue et al, “Research & Development of Methane-Oxygen Combustor for Carbon Dioxide Recovery Closed-Cycle Gas Turbine”, 2001, 3C-05-CIM.
“Development of Combustor for LNG. Oxygen Firing”, 29th Gas Turbine Regular Lecture Meeting—Collected Lecture Papers, 2001, pp. 113-118.
Inoue Hiroshi
Kobayashi Nariyoshi
Koganezawa Tomomi
Takehara Isao
Hitachi , Ltd.
Koczo Michael
Mattingly Stanger & Malur, P.C.
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