EP4519607A1 - Procede d'injection de melange hydrogene-air pour bruleur de turbomachine - Google Patents
Procede d'injection de melange hydrogene-air pour bruleur de turbomachineInfo
- Publication number
- EP4519607A1 EP4519607A1 EP23726147.4A EP23726147A EP4519607A1 EP 4519607 A1 EP4519607 A1 EP 4519607A1 EP 23726147 A EP23726147 A EP 23726147A EP 4519607 A1 EP4519607 A1 EP 4519607A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- injection
- air
- channel
- internal channel
- combustion
- 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.)
- Granted
Links
Classifications
-
- 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
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
- F23R3/286—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply having fuel-air premixing devices
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- 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
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
-
- 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
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
-
- 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
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
- F23R3/04—Air inlet arrangements
- F23R3/10—Air inlet arrangements for primary air
- F23R3/12—Air inlet arrangements for primary air inducing a vortex
- F23R3/14—Air inlet arrangements for primary air inducing a vortex by using swirl vanes
-
- 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
- F23R2900/00002—Gas turbine combustors adapted for fuels having low heating value [LHV]
-
- 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
Definitions
- the present disclosure relates to the field of power processes for gas turbine injection devices such as aircraft turbomachines powered by dihydrogen and air.
- gas turbine injection devices such as aircraft turbomachines powered by dihydrogen and air.
- Burners made according to this principle do not guarantee the absence of flashback in the dihydrogen injection device and have a complex geometry. Such burners have a high production cost, a high pressure loss and are specific to a given combustion chamber architecture.
- lean injection systems At the level of injection and combustion, two main technological configurations for hydrogen-air injection systems applied to gas turbines exist, namely lean injection systems and rich injection systems. .
- lean combustion supply processes tend to generate significant thermo-acoustic instabilities which can damage these systems whereas stable combustion is necessary to avoid not affect engine performance.
- Rich-burning feed processes tend to emit more pollutants than lean-burning processes if they are not sized correctly.
- the present disclosure proposes an injection method, for an injection device in a combustion chamber of an aircraft turbomachine, said injection device comprising an internal channel surrounded by an external annular channel , said channels opening into said combustion chamber of said gas turbine, the process comprising an injection of a dihydrogen-air mixture with a hydrogen content greater than the stoichiometric dosage in said internal channel and an injection of air into said external annular channel so as to produce, at the outlet of said internal channel, a first flame front resulting from a rich combustion surrounded by a second flame front resulting from a lean combustion, after ignition of the mixture.
- the dihydrogen-air mixture may have a hydrogen content greater than 2.
- said dihydrogen-air mixture may have a hydrogen content greater than or equal to 4.
- An air flow in the external annular channel can be chosen such that the overall richness at the outlet of the internal channel and external annular channel assembly is fixed between 0.15 and 0.5 depending on the operating points of the turbomachine.
- the injection of the dihydrogen/air mixture and the injection device can be configured to create said first front at the outlet of the internal channel of flame, resulting from the rich combustion of said mixture and hang it on a peripheral lip of the internal channel.
- the hydrogen richness of the mixture can be chosen so that said rich combustion takes place with a flame front temperature lower than 1800 K, which preserves the combustion chamber.
- the hydrogen content of the mixture can be chosen so that the first flame front is laminar and has a Lewis number greater than 1 limiting thermo-diffusive instabilities and thus avoiding flashback phenomena.
- the mixture burned in the first flame front generates residual gases which are advantageously burned in the second flame front stabilized by the supply of air from the external annular channel.
- the richness of the second flame front is such that the second flame front can be maintained at a temperature below 1800K.
- the air injected by the annular channel can be rotated by an annular swirl so as to make the second flame front turbulent and so that this second flame front is not attached to the lip of the internal channel.
- positioning the downstream end of the internal channel upstream of the downstream end of the external annular channel makes it possible to optimize the mixing between the gases resulting from the first combustion and the air injected by the external channel.
- FIG. 1 shows a turbomachine comprising an injection device arranged in an annular bottom of an annular combustion chamber in three configurations;
- FIG. 2 shows a first schematic example in sectional side view of an injection device to which the method of the present disclosure applies;
- FIG. 3 shows a schematic view of the device of Figure 2 in a combustion situation;
- FIG. 4 shows a plurality of possible configurations (figures. A, B, C, D, E) of internal channel of a device to which the method of the present disclosure applies;
- FIG. 5 shows a plurality of examples of annular channel output configurations ( Figures A, B, C) for a device to which the method of the present disclosure applies.
- Figure 1 represents three examples of installation configurations of an injection device 2 on a turbomachine 1 depending on the orientation of the annular bottom of an annular combustion chamber 4 , 4', 4” of the turbomachine: either the combustion chamber 4” is oriented substantially along a longitudinal axis 4' is transverse to said longitudinal axis ', 4” or on an external ferrule.
- the injection device can be, as illustrated in Figure 2, an injection device which comprises an internal channel 6 and an external annular channel 8.
- the external channel 8 is centered on the internal channel 6 and in the case of tubular channels, the internal channel 6 and the external annular channel 8 are coaxial. These channels open into the combustion chamber 4, 4', 4” of the device of Figure 1.
- the internal and external channels are circular in cross section.
- An ignition device not shown allows the ignition of the gases leaving the channels to initiate combustion.
- This injection device 2 is used in the present disclosure in a configuration for which a rich dihydrogen-air mixture is injected into the internal channel 6 while air is injected into the external channel 8. Therefore , the combustion comprises a first combustion rich in dihydrogen at the outlet of the internal or central channel 6. and a second so-called lean combustion which is carried out around a flame created by the first combustion.
- the present invention thus provides an injection process which comprises an injection of a dihydrogen-air mixture 12a with a hydrogen richness greater than the stoichiometric dosage in the internal channel 6 of the injection device and a injection of air 26a into the external annular channel 8 so as to produce, at the outlet of said internal channel 6, a first flame front 30 resulting from a rich combustion surrounded by a second flame front 31 resulting from a poor combustion.
- the internal channel 6 then forms a rich dihydrogen-air mixture injection tube 12a and the external annular channel 8 forms an air injection tube 26a.
- the rich mixture 12a of air and dihydrogen is injected from an inlet 10 located at an upstream end of the internal channel 6.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2204146A FR3135114A1 (fr) | 2022-05-02 | 2022-05-02 | Procede d’injection de melange hydrogene-air pour bruleur de turbomachine |
| PCT/FR2023/000071 WO2023214129A1 (fr) | 2022-05-02 | 2023-05-02 | Procede d'injection de melange hydrogene-air pour bruleur de turbomachine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4519607A1 true EP4519607A1 (fr) | 2025-03-12 |
| EP4519607B1 EP4519607B1 (fr) | 2025-12-31 |
Family
ID=83900291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23726147.4A Active EP4519607B1 (fr) | 2022-05-02 | 2023-05-02 | Procédé d'injection de mélange hydrogene-air pour brûleur de turbomachine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250283600A1 (fr) |
| EP (1) | EP4519607B1 (fr) |
| CN (1) | CN119137414A (fr) |
| FR (1) | FR3135114A1 (fr) |
| WO (1) | WO2023214129A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12529341B2 (en) | 2024-06-11 | 2026-01-20 | General Electric Company | Ignition system and method of operating a combustion engine |
| US12590556B1 (en) | 2024-10-01 | 2026-03-31 | General Electric Company | Gas turbine engine, fuel nozzle assembly, and method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8197249B1 (en) * | 2006-04-28 | 2012-06-12 | The United States Of America, As Represented By The Administrator Of The National Aeronautics And Space Administration | Fully premixed low emission, high pressure multi-fuel burner |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3826078A (en) * | 1971-12-15 | 1974-07-30 | Phillips Petroleum Co | Combustion process with selective heating of combustion and quench air |
| JP2528894B2 (ja) * | 1987-09-04 | 1996-08-28 | 株式会社日立製作所 | ガスタ―ビン燃焼器 |
| US5791889A (en) * | 1996-04-26 | 1998-08-11 | The United States Of America As Represented By The United States Department Of Energy | Combustor oscillating pressure stabilization and method |
| WO1998025082A1 (fr) * | 1996-12-03 | 1998-06-11 | Elliott Energy Systems, Inc. | Systeme generant de l'electricite avec dispositif combustor |
| US6374615B1 (en) * | 2000-01-28 | 2002-04-23 | Alliedsignal, Inc | Low cost, low emissions natural gas combustor |
| FR2859272B1 (fr) * | 2003-09-02 | 2005-10-14 | Snecma Moteurs | Systeme d'injection air/carburant, dans une chambre de combustion de turbomachine, ayant des moyens de generation de plasmas froids |
| US20100330510A1 (en) * | 2005-05-23 | 2010-12-30 | Pfefferle William C | METHOD FOR LOW NOx COMBUSTION OF SYNGAS / HUGH HYDROGEN FUELS |
| GB2449267A (en) * | 2007-05-15 | 2008-11-19 | Alstom Technology Ltd | Cool diffusion flame combustion |
| US8925325B2 (en) * | 2011-03-18 | 2015-01-06 | Delavan Inc. | Recirculating product injection nozzle |
| DE102012017065A1 (de) * | 2012-08-28 | 2014-03-27 | Rolls-Royce Deutschland Ltd & Co Kg | Verfahren zum Betrieb eines Magervormischbrenners einer Fluggasturbine sowie Vorrichtung zur Durchführung des Verfahrens |
| FR3007801B1 (fr) * | 2013-07-01 | 2018-01-05 | Arianegroup Sas | Element d'injection |
| US10234142B2 (en) * | 2016-04-15 | 2019-03-19 | Solar Turbines Incorporated | Fuel delivery methods in combustion engine using wide range of gaseous fuels |
| JP7339206B2 (ja) * | 2020-04-22 | 2023-09-05 | 三菱重工業株式会社 | バーナー集合体、ガスタービン燃焼器及びガスタービン |
-
2022
- 2022-05-02 FR FR2204146A patent/FR3135114A1/fr active Pending
-
2023
- 2023-05-02 CN CN202380037896.8A patent/CN119137414A/zh active Pending
- 2023-05-02 US US18/861,683 patent/US20250283600A1/en active Pending
- 2023-05-02 EP EP23726147.4A patent/EP4519607B1/fr active Active
- 2023-05-02 WO PCT/FR2023/000071 patent/WO2023214129A1/fr not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8197249B1 (en) * | 2006-04-28 | 2012-06-12 | The United States Of America, As Represented By The Administrator Of The National Aeronautics And Space Administration | Fully premixed low emission, high pressure multi-fuel burner |
Also Published As
| Publication number | Publication date |
|---|---|
| US20250283600A1 (en) | 2025-09-11 |
| CN119137414A (zh) | 2024-12-13 |
| WO2023214129A1 (fr) | 2023-11-09 |
| FR3135114A1 (fr) | 2023-11-03 |
| EP4519607B1 (fr) | 2025-12-31 |
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