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EP1746344A3 - Method for adjusting the acoustic properties of a combustion chamber - Google Patents

Method for adjusting the acoustic properties of a combustion chamber Download PDF

Info

Publication number
EP1746344A3
EP1746344A3 EP06117462A EP06117462A EP1746344A3 EP 1746344 A3 EP1746344 A3 EP 1746344A3 EP 06117462 A EP06117462 A EP 06117462A EP 06117462 A EP06117462 A EP 06117462A EP 1746344 A3 EP1746344 A3 EP 1746344A3
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
adjusting
eigenmode
acoustic properties
output
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06117462A
Other languages
German (de)
French (fr)
Other versions
EP1746344A2 (en
Inventor
Zoltán Faragó
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutsches Zentrum fuer Luft und Raumfahrt eV
Original Assignee
Deutsches Zentrum fuer Luft und Raumfahrt eV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deutsches Zentrum fuer Luft und Raumfahrt eV filed Critical Deutsches Zentrum fuer Luft und Raumfahrt eV
Publication of EP1746344A2 publication Critical patent/EP1746344A2/en
Publication of EP1746344A3 publication Critical patent/EP1746344A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M20/00—Details of combustion chambers, not otherwise provided for, e.g. means for storing heat from flames
    • F23M20/005—Noise absorbing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R2900/00—Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
    • F23R2900/00013—Reducing thermo-acoustic vibrations by active means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R2900/00—Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
    • F23R2900/00014—Reducing thermo-acoustic vibrations by passive means, e.g. by Helmholtz resonators

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Testing Of Engines (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Abstract

Um ein Verfahren zur Einstellung der akustischen Eigenschaften einer Brennkammer, bei dem die Brennkammer mit mindestens einem akustischen Resonator als Dämpfungselement versehen wird, bereitzustellen, wird vorgeschlagen, eine erste Eigenmode einer Ausgangs-Brennkammer-Resonator-Kombination unterhalb der Eigenmode der Ausgangs-Brennkammer und einer zweiten Eigenmode der Ausgangs-Brennkammer-Resonator-Kombination oberhalb der Eigenmode der Ausgangs-Brennkammer bezüglich Intensität und/oder Halbwertsbreite zu vergleichen.

Figure imgaf001
In order to provide a method for adjusting the acoustic properties of a combustion chamber in which the combustion chamber is provided with at least one acoustic resonator as a damping element, it is proposed that a first eigenmode of an output combustor-resonator combination below the eigenmode of the output combustion chamber and a second eigenmode of the output combustor-resonator combination above the eigenmode of the output combustion chamber with respect to intensity and / or half width compare.
Figure imgaf001
EP06117462A 2005-07-20 2006-07-19 Method for adjusting the acoustic properties of a combustion chamber Withdrawn EP1746344A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005035085.2A DE102005035085B4 (en) 2005-07-20 2005-07-20 Method for adjusting the acoustic properties of a combustion chamber

Publications (2)

Publication Number Publication Date
EP1746344A2 EP1746344A2 (en) 2007-01-24
EP1746344A3 true EP1746344A3 (en) 2011-07-13

Family

ID=37110207

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06117462A Withdrawn EP1746344A3 (en) 2005-07-20 2006-07-19 Method for adjusting the acoustic properties of a combustion chamber

Country Status (2)

Country Link
EP (1) EP1746344A3 (en)
DE (1) DE102005035085B4 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005050029A1 (en) * 2005-10-14 2007-04-19 Deutsches Zentrum für Luft- und Raumfahrt e.V. Resonator device for a combustion chamber, combustion chamber and method for adjusting the acoustic properties of a combustion chamber
DE102006007711B4 (en) * 2006-02-14 2008-07-24 Deutsches Zentrum für Luft- und Raumfahrt e.V. Combustion chamber and method for adjusting the acoustic properties of a combustion chamber
DE102006053278A1 (en) 2006-11-03 2008-05-08 Deutsches Zentrum für Luft- und Raumfahrt e.V. combustion chamber device
JP6679273B2 (en) * 2015-11-02 2020-04-15 三菱重工業株式会社 Combustor and rocket engine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10058688A1 (en) * 2000-11-25 2003-01-02 Alstom Switzerland Ltd Damper arrangement for reducing combustion chamber pulsations
WO2003060381A1 (en) * 2002-01-16 2003-07-24 Alstom Technology Ltd Combustion chamber and damper arrangement for reduction of combustion chamber pulsations in a gas turbine plant
EP1342952A1 (en) * 2002-03-07 2003-09-10 Siemens Aktiengesellschaft Burner, process for operating a burner and gas turbine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4414232A1 (en) * 1994-04-23 1995-10-26 Abb Management Ag Device for damping thermoacoustic vibrations in a combustion chamber
DE59708564D1 (en) * 1997-07-15 2002-11-28 Alstom Method and device for minimizing thermoacoustic vibrations in gas turbine combustion chambers
DE19851636A1 (en) * 1998-11-10 2000-05-11 Asea Brown Boveri Damping device for reducing vibration amplitude of acoustic waves for burner for internal combustion engine operation is preferably for driving gas turbo-group, with mixture area for air and fuel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10058688A1 (en) * 2000-11-25 2003-01-02 Alstom Switzerland Ltd Damper arrangement for reducing combustion chamber pulsations
WO2003060381A1 (en) * 2002-01-16 2003-07-24 Alstom Technology Ltd Combustion chamber and damper arrangement for reduction of combustion chamber pulsations in a gas turbine plant
EP1342952A1 (en) * 2002-03-07 2003-09-10 Siemens Aktiengesellschaft Burner, process for operating a burner and gas turbine

Also Published As

Publication number Publication date
DE102005035085A1 (en) 2007-02-01
EP1746344A2 (en) 2007-01-24
DE102005035085B4 (en) 2014-01-16

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