[특허]Method and combustor for combusting hydrogen

[미국특허] Method and combustor for combusting hydrogen 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F23D-014/12 F23D-014/10
출원번호	US-0307125 (1999-05-07)
발명자 / 주소	Suttrop Friedemann,DEX
출원인 / 주소	DaimlerChrysler Aerospace Airbus GmbH, DEX
대리인 / 주소	Fasse
인용정보	피인용 횟수 : 19 인용 특허 : 3

초록 ▼

A plate burner for combusting hydrogen with air as an oxidizer forms a wall portion of a combustion chamber for example of a gas turbine. The plate burner is so constructed that air and hydrogen are separately guided to the downstream surface area facing into the combustion chamber for forming a large number of diffusive microcombustion flames, thus achieving a very low mixing scale simultaneously with a high nixing intensity. The number of diffusive micorcombustion flames is so selected that the NO.sub.x content in the exhaust gas from the combustion chamber is at the most 10.times.10.sup.-6 cubic foot per cubic foot of exhaust gas. The hydrogen enters the entrance area into the combustion chamber either through a porous wall, and air is injected into the hydrogen environment to form inverse diffusive microcombustion flames or the hydrogen is injected through a multitude of fine holes into high velocity air jets forming regular diffusion flames. In both instances, the formation of NO.sub.x in the exhaust gas during combustion is reduced to the above level or below.

대표청구항 ▼

[ What is claimed is:] [1.]1. A combustor for diffusion combustion of hydrogen fuel and air as an oxidizer in a combustion chamber in which exhaust gas including nitrogen oxides NO.sub.x is produced during combustion, said combustor comprising a burner surface area facing into said combustion chamber (CC), a number of hydrogen fuel inlet through-holes in said combustor for feeding a corresponding number of hydrogen jets (31) into said combustion chamber, a number of air inlets in said combustor for feeding air streams (30) into said combustion chamber, said hydrogen fuel inlet through-holes and said air inlets being so positioned relative to each other and relative to said combustion chamber that stable and distinct diffusive microcombustion flames are formed in said combustion chamber by diffusion micromixing hydrogen jet and air jets with a mixing intensity that depends on a pressure drop available in said combustion chamber to sustain a multitude of said stable and distinct diffusive microcombustion flames for maintaining said nitrogen oxides NO.sub.x at most at a level of 10.times.10.sup.-6 cubic foot of NO.sub.x per cubic foot of said exhaust gases during combustion as measured at atmospheric burner entrance conditions, said combustor further comprising a plurality of hydrogen distribution channels (26) with air flow spaces between said channels, channel walls enclosing each of said hydrogen distribution channels, said channel walls including wall sections forming at least part of said burner surface area facing into said combustion chamber (CC), said through-holes (27) formed in said wall sections for feeding hydrogen jets (31) through said through-holes (27) into said combustion chamber (CC), said through-holes (27) extending through said wall sections so that a hydrogen flow direction of said hydrogen jets (31) extends at a first angle to a surface of said wall sections, and a grid structure (28) with cut-outs (29) in said grid structure (28) for controlling an air flow direction (30) of said air jets (30) passing through said grid structure (28), said grid structure (28) being so positioned relative to said through-holes (27) that said air jets (30) passing through said cut-outs (29) and said hydrogen jets (31) passing through said through-holes (27) cross one another at a second angle to form said stable and distinct diffusive microcombustion flames.

이 특허에 인용된 특허 (3) 인용/피인용 타임라인 분석

LeMer Joseph (Saint Thegonnec FRX), Gas burners.
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Beebe Kenneth W. (Galway NY), Multiple venturi tube gas fuel injector for catalytic combustor.
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Striebel ; Edmund Emil ; Koblish ; Theodore Richard ; Madden ; Thomas Joseph ; James ; Roger Halsted, Premix combustor.
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이 특허를 인용한 특허 (19) 인용/피인용 타임라인 분석

Storey,James M; Dinu,Constantin, Apparatus having thermally isolated venturi tube joints.
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Hermann, Ingo; Junge, Axel; Stadie, Martin; Mack-Gardner, Andre'; Klaus, Philip, Catalytic combuster.
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Yoshino, Ryo, Fuel injector.
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Nguyen, Quang-Viet, Fully premixed low emission, high pressure multi-fuel burner.
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Inoue,Hiroshi; Koganezawa,Tomomi; Kobayashi,Nariyoshi; Takehara,Isao, Gas turbine combustor.
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Inoue,Hiroshi; Koganezawa,Tomomi; Kobayashi,Nariyoshi; Takehara,Isao, Gas turbine combustor and operating method thereof.
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Inoue,Hiroshi; Koganezawa,Tomomi; Kobayashi,Nariyoshi; Takehara,Isao, Gas turbine combustor and operating method thereof.
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Inoue,Hiroshi; Koganezawa,Tomomi; Kobayashi,Nariyoshi; Takehara,Isao, Gas turbine combustor and operating method thereof.
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Uhm, Jong Ho; Johnson, Thomas Edward; Kim, Kwanwoo, Injection nozzle for a turbomachine.
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Johnson, Thomas Edward; Lacy, Benjamin; Stevenson, Christian, Internal baffling for fuel injector.
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Barton, Jesse Ellis; Berry, Jonathan Dwight; Hadley, Mark Allan; Nelson, Glenn David; Rohrssen, Robert Joseph; Vanselow, John Drake, Method and apparatus for introducing diluent flow into a combustor.
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Barton, Jesse Ellis; Berry, Jonathan Dwight; Hadley, Mark Allan; Melton, Patrick Benedict, Method and apparatus of introducing diluent flow into a combustor.
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Hase, Matthias, Method for operating a burner and burner, in particular for a gas turbine.
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Liang, David Tee; Tay, Joo Hwa; Lim, Tuti Mariana; Li, Dong Fei, Methods for sterilizing medical devices using a hydrogen surface-mixed diffusion flame.
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Alvin E. Buggele ; John R. Gallagher, Minimally intrusive and nonintrusive supersonic injectors for LANTR and RBCC/Scramjet propulsion systems.
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Lacy, Benjamin Paul; Davis, Jr., Lewis Berkley; Johnson, Thomas Edward; York, William David, Multi-tube thermal fuse for nozzle protection from a flame holding or flashback event.
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Johnson, Thomas Edward; Stevenson, Christian Xavier; York, William David; Ziminsky, Willy Steve, Premixing direct injector.
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Homitz, Joseph; Sykes, David M.; O'Brien, Walter F.; Vandsburger, Uri; LePera, Steve, Premixing injector for gas turbine engines.
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Uhm, Jong Ho; Johnson, Thomas Edward; Zuo, Baifang; York, William David, System and method for reducing combustion dynamics in a combustor.
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[미국특허] Method and combustor for combusting hydrogen 원문보기

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[미국특허] Method and combustor for combusting hydrogen 원문보기

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