WO2000054354A1 - Verfahren zum betreiben einer brennstoffzellenanlage und brennstoffzellenanlage - Google Patents
Verfahren zum betreiben einer brennstoffzellenanlage und brennstoffzellenanlage Download PDFInfo
- Publication number
- WO2000054354A1 WO2000054354A1 PCT/DE2000/000566 DE0000566W WO0054354A1 WO 2000054354 A1 WO2000054354 A1 WO 2000054354A1 DE 0000566 W DE0000566 W DE 0000566W WO 0054354 A1 WO0054354 A1 WO 0054354A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuel cell
- housing
- heat
- air
- cell system
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24V—COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
- F24V99/00—Subject matter not provided for in other main groups of this subclass
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0065—Solid electrolytes
- H01M2300/0082—Organic polymers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Definitions
- the invention relates to a method for operating a fuel cell system and to a fuel cell system.
- the technical implementation of the principle of the fuel cell has led to different solutions, namely with different types of electrolytes and with operating temperatures between 80 ° C and 1000 ° C. Depending on their operating temperature, the fuel cells are divided into low, medium and high temperature fuel lines, which in turn differ from one another in different technical embodiments.
- a fuel cell alone supplies an operating voltage of less than one volt.
- a large number of fuel cells are therefore stacked on top of one another and combined to form a fuel cell block.
- such a rather block also called "stack *".
- One or more fuel cells cannot be operated by themselves. They are therefore operated in a fuel cell system which comprises a fuel cell block, an operating part and system electronics.
- the operating part comprises devices for supplying the fuel cells with operating gases, ie with oxygen - or air - and fuel gas.
- the operating section includes devices for product water removal, for heat removal, and for the discharge of the electrical current generated in the fuel cells.
- the system electronics control the interaction of the various facilities of the fuel cell system.
- a fuel cell system works particularly effectively and inexpensively when its overall efficiency is high.
- the overall efficiency of a fuel cell system is additive from the electrical and thermal efficiency of the system.
- the electrical and thermal efficiency results from the electrical and thermal energy generated and usable per quantity of fuel.
- the aim should be to utilize as much of the electrical and thermal energy generated as possible.
- the cooling water circuit is, for example, thermally connected to a heating water circuit that absorbs the heat of the cooling water.
- the water in the heating water circuit is routed through the heating in a house, for example, and therefore warms the House.
- part of the heat generated by the fuel cell block leaves the block as radiant heat. It is radiated into the room in which the fuel cell system is installed. This radiation heat is not used in a conventional fuel cell system.
- the fuel cell block is the component of a fuel cell system that emits the most heat.
- other components of the fuel cell system for example a circulation pump, an air compressor or components of the system electronics, radiate a considerable amount of heat into the environment. This heat of radiation is also not used by a conventional fuel cell system.
- the invention is based on the object of specifying a method for operating a fuel cell system in which heat radiated by components of the fuel cell system is made usable.
- the invention is also based on the object of specifying a fuel cell system which makes it possible to utilize heat radiated by components of the fuel cell system.
- the first-mentioned object is achieved by a method for operating a fuel cell system which comprises a fuel cell block, a cooling water circuit and a housing which surrounds heat-radiating components of the fuel cell system, in which air according to the invention is fed into the housing for the operation of the fuel cells of the fuel cell block is, the air in the housing components of the fuel cell system flows around and then the
- Fuel cell block is supplied, and in which the fuel cell block gives off heat to the cooling water of the cooling water circuit and warming the cooling water heats water from a heating water circuit.
- the invention is based on the consideration that components of the fuel cell system radiated heat is made usable by supplying it to a heating water circuit.
- the invention is based on the consideration that air is supplied to the fuel cells as the operating gas. This air is heated in the fuel cell block to the temperature of the fuel cell block, whereby heat is extracted from the fuel cell block.
- the invention is based on the consideration that warm radiating components of the fuel cell system heat the air surrounding them. When this preheated air is used as the operating gas of the fuel cells, less energy is withdrawn from the fuel cell block when the air is heated to the operating temperature of the fuel cells. As a result, the fuel cell block emits more heat to the cooling water, which transfers this heat to the water in the heating circuit.
- the invention is based on the consideration that a housing which surrounds the heat-radiating components of the fuel cell system prevents the warm air from dissipating into the surroundings of the system. Air from the surroundings of the housing is conducted into this housing. This happens, for example, in that an air compressor sucks in air inside the housing, whereby air flows through an opening in the housing into the interior of the housing. This post-flowing air flows around the heat radiating components of the fuel cell system, is warms, sucked in by the compressor and fed to the fuel cell block.
- the air is compressed in a liquid compressor before it is fed to the fuel cell block.
- the air is not only compressed to a predetermined density, which has an advantageous effect on the operation of the fuel cell system, but is also humidified at the same time.
- This moistening results in a considerable extension of the lifespan of electrolyte membranes, such as those used in so-called PEM fuel cells (polymer electrolyte membranes).
- Cooling water is expediently conducted from the cooling water circuit into the liquid compressor. This has the advantage that the air in the liquid compressor is heated to the temperature of the cooling water, that is to say approximately the operating temperature of the fuel cells, before it is fed to the fuel cell block. In addition, the air is humidified with the very pure cooling water, which has an advantageous effect on the operation of the fuel cell system.
- a fuel cell system which, according to the invention, comprises a fuel cell block, an air compressor, a cooling water circuit which is thermally connected to a heating water circuit, and a housing which surrounds heat-radiating components of the fuel cell system, the air compressor having an intake opening , which is inside the housing and through the air from inside the housing into the Air compressor can be introduced, and wherein the housing has an opening through which air surrounding the housing can be emitted into the interior of the housing.
- Such a fuel cell system makes it possible, in the manner described above, to utilize the heat radiated by components of the fuel cell system.
- the thermal efficiency of the fuel cell system is all the greater, the more heat-emitting components are surrounded by the housing. If the housing encloses the entire fuel cell system, it can serve both as sound insulation and as a cabinet for the system. Operating elements, display elements or a screen can act as components of the housing.
- the thermal connection between the cooling water and the heating water circuit is established, for example, by a heat exchanger, with the aid of which heat from the cooling water is transferred to water in the heating circuit.
- the housing is thermally insulated. This largely prevents the warm air in the housing from heating the outer wall of the housing and the housing itself emitting heat into the surroundings.
- the housing is advantageously designed as a double-walled housing. With this configuration of the housing, too, it is largely avoided that the warm air in the housing heats the outer wall of the housing and the housing itself radiates heat into the surroundings.
- the air compressor is expediently a liquid compressor.
- the air is humidified before it is supplied to the fuel cells, without the need to add another component to the fuel cell system.
- the fuel cell block comprises PEM fuel cells.
- PEM fuel cells are operated at a low operating temperature of around 80 ° C, have a favorable overload behavior and a long service life. In addition, they show a favorable behavior with fast load changes and can be operated with air instead of pure oxygen. All of these properties make PEM fuel cells particularly suitable for use in the mobile sector, such as for driving a wide variety of vehicles.
- FIG. 1 shows a fuel cell system 1 in a very simplified representation.
- a thermally insulated housing 2 surrounds all other components of the
- a fuel cell block 4 is arranged in the housing 2 and comprises 80 PEM fuel cells.
- the fuel cell block 4 is cooled by water from a cooling circuit 6, which flows from the fuel cell block 4 to a heat exchanger 8, from there to a circulating pump 10, further to a liquid ring compressor and back into the fuel cell block 4.
- the cooling water in the heat exchanger 8 gives heat to water from a heating water circuit 14 from.
- the water in the heating water circuit 14 heats the heaters of a house.
- the PEM fuel cells are operated with the operating gases air and hydrogen. Approximately 20 ° C. warm air from the surroundings of the fuel cell system 1 - caused by a slight negative pressure generated by the liquid ring compressor 12 inside the housing - is passed through an opening 16 in the housing 2 into the interior of the housing 2. The air flows around heat-emitting components of the fuel cell system 1, such as, for example, the heat exchanger 8, the fuel cell block 4, an electronic system controller 18, the circulation pump 10 and the liquid ring compressor 12. It heats up to about 40 ° C. Subsequently it is drawn in through a suction opening 20 and flows through a suction pipe 22 into the liquid compressor 12. There the air is compressed and humidified to 100% air humidity with the cooling water.
- the approximately 75 ° warm cooling water heats the air in the liquid compressor 12 to approximately 75 ° C.
- the air is then compressed, humidified and heated up through the air supply line 24 to the fuel cell block 4. After flowing through the fuel cell block 4, it is led out of the fuel cell block 4 through the exhaust air line 26.
- Components of the fuel cell system 1 such as, for example, heat exchangers in the air outlet, fuel gas inlet and outlet, water separators and pumps are not shown in the figure for the sake of clarity.
- the air flowing through the housing 2 of the fuel cell system 1 flows around all the heat-radiating components of the fuel cell system 1, including pipes and connections, and removes heat from the components.
- the heat is supplied from the air to the fuel cell block 4 and thus made usable. In this way, heat penetrates from the inside of the heat-insulated housing 2 to the outside only to an insignificant extent. With this air function, it is no longer necessary to isolate individual components of the fuel cell system 1 in order to prevent heat radiation.
- the manufacture of a fuel cell system is therefore considerably simplified by the invention.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002367099A CA2367099C (en) | 1999-03-10 | 2000-02-28 | Method for operating a fuel cell facility, and fuel cell facility |
EP00912393A EP1159770B1 (de) | 1999-03-10 | 2000-02-28 | Verfahren zum betreiben einer brennstoffzellenanlage und brennstoffzellenanlage |
DE50000454T DE50000454D1 (de) | 1999-03-10 | 2000-02-28 | Verfahren zum betreiben einer brennstoffzellenanlage und brennstoffzellenanlage |
JP2000604478A JP2002539584A (ja) | 1999-03-10 | 2000-02-28 | 燃料電池設備の作動方法及び燃料電池設備 |
US09/950,429 US6841277B2 (en) | 1999-03-10 | 2001-09-10 | Method for operating a fuel cell plant and fuel cell plant |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19910695.9 | 1999-03-10 | ||
DE19910695A DE19910695C1 (de) | 1999-03-10 | 1999-03-10 | Verfahren zum Betreiben einer Brennstoffzellenanlage und Brennstoffzellenanlage |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/950,429 Continuation US6841277B2 (en) | 1999-03-10 | 2001-09-10 | Method for operating a fuel cell plant and fuel cell plant |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000054354A1 true WO2000054354A1 (de) | 2000-09-14 |
Family
ID=7900491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/000566 WO2000054354A1 (de) | 1999-03-10 | 2000-02-28 | Verfahren zum betreiben einer brennstoffzellenanlage und brennstoffzellenanlage |
Country Status (6)
Country | Link |
---|---|
US (1) | US6841277B2 (de) |
EP (1) | EP1159770B1 (de) |
JP (1) | JP2002539584A (de) |
CA (1) | CA2367099C (de) |
DE (3) | DE19964497B4 (de) |
WO (1) | WO2000054354A1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002037595A2 (de) * | 2000-10-31 | 2002-05-10 | Vaillant Gmbh | Unterdruckkammer für brennstoffzellenanlage |
WO2002093673A1 (en) * | 2001-05-11 | 2002-11-21 | Cellex Power Products, Inc. | Fuel cell thermal management system and method |
JP2002373684A (ja) * | 2001-06-18 | 2002-12-26 | Yamaha Motor Co Ltd | 燃料電池システム |
EP1724867A1 (de) * | 2005-05-18 | 2006-11-22 | Siemens Aktiengesellschaft | Verfahren zum Betrieb eines Brennstoffzellensystems sowie Brennstoffzellensystem |
EP1724866A1 (de) * | 2005-05-18 | 2006-11-22 | Siemens Aktiengesellschaft | Verfahren zur Befeuchtung eines Gases sowie Gasbefeuchtungseinrichtung |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19935719C2 (de) * | 1999-07-29 | 2003-01-30 | Forschungszentrum Juelich Gmbh | Kühlsystem für Brennstoffzellen |
AT409683B (de) * | 2000-11-02 | 2002-10-25 | Vaillant Gmbh | Verfahren zur wirkungsgradsteigerung und gefahrenvermeidung bei brennstoffzellenanordnungen |
DE10200404A1 (de) * | 2002-01-08 | 2003-07-17 | H2 Interpower Brennstoffzellen | Vorrichtung zur Erwärmung von Luft mit einer Brennstoffzelle |
DE102005007180B4 (de) * | 2005-02-14 | 2011-11-17 | ZAE Bayern Bayerisches Zentrum für angewandte Energieforschung e.V. | Ein begrenzt wärmebelastbares System mit einem Brennstofffzellenstapel und Verfahren zum Betreiben eines begrenzt wärmebelastbaren Systems mit einem Brennstoffzellenstapel |
AT503009B1 (de) * | 2006-01-13 | 2007-10-15 | Vaillant Austria Gmbh | Anlage zur rekuperativen wärmenutzung mit zumindest einer brennstoffzelle |
JP4932265B2 (ja) * | 2006-01-30 | 2012-05-16 | 京セラ株式会社 | 燃料電池システム |
EP1826858A1 (de) * | 2006-02-23 | 2007-08-29 | Siemens Aktiengesellschaft | Verfahren zum Betreiben einer Brennstoffzellenanlage sowie Brennstoffzellenanlage |
EP1865569A1 (de) * | 2006-06-07 | 2007-12-12 | Siemens Aktiengesellschaft | Verfahren zur Wärmeabfuhr aus einer Brennstoffzellenanlage sowie Brennstoffzellenanlage |
DE102006031866A1 (de) * | 2006-07-10 | 2008-01-17 | Webasto Ag | Brennstoffzellensystem und Verfahren zum Beeinflussen des Wärmehaushaltes eines Brennstoffzellensystems |
US8298713B2 (en) * | 2006-10-25 | 2012-10-30 | GM Global Technology Operations LLC | Thermally integrated fuel cell humidifier for rapid warm-up |
JP4636028B2 (ja) * | 2007-01-24 | 2011-02-23 | カシオ計算機株式会社 | 燃料電池装置及び電子機器 |
DE102007007605A1 (de) * | 2007-02-13 | 2008-08-14 | J. Eberspächer GmbH & Co. KG | Brennstoffzellensystem |
DE102007039017A1 (de) * | 2007-08-17 | 2009-02-19 | J. Eberspächer GmbH & Co. KG | Brennstoffzellensystem |
DE102008019981B4 (de) | 2008-04-21 | 2020-10-08 | Adkor Gmbh | Schrank mit wenigstens einem modularen, integrierten Energieversorgungssystem mit Brennstoffzellenstapel |
DE102008019979B3 (de) | 2008-04-21 | 2009-10-01 | Futuree Fuel Cell Solutions Gmbh | Energieversorgungsmodul und Stromschrank |
DE102023201605A1 (de) | 2023-02-22 | 2024-08-22 | Robert Bosch Gesellschaft mit beschränkter Haftung | Brennstoffzellenvorrichtung und Verfahren zum Betrieb der Brennstoffzellenvorrichtung |
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JPH06333583A (ja) * | 1993-05-21 | 1994-12-02 | Fuji Electric Co Ltd | 固体高分子電解質型燃料電池発電装置 |
US5647534A (en) * | 1994-09-22 | 1997-07-15 | Mercedes-Benz Ag | Device for heating an interior of an electric vehicle |
WO1998004011A2 (en) * | 1996-07-19 | 1998-01-29 | Ztek Corporation | Fuel cell system for electric generation, heating, cooling and ventilation |
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US4500612A (en) * | 1982-04-21 | 1985-02-19 | Mitsubishi Denki Kabushiki Kaisha | Temperature control device for a fuel cell |
JPS6217962A (ja) | 1985-03-08 | 1987-01-26 | Hitachi Ltd | 燃料電池 |
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JPH053044A (ja) * | 1991-06-26 | 1993-01-08 | Toshiba Corp | 燃料電池発電プラント |
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JPH05343083A (ja) | 1992-06-12 | 1993-12-24 | Ishikawajima Harima Heavy Ind Co Ltd | 燃料電池発電装置 |
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JPH08315837A (ja) * | 1995-05-23 | 1996-11-29 | Toshiba Corp | 燃料電池発電プラント |
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1999
- 1999-03-10 DE DE19964497.7A patent/DE19964497B4/de not_active Expired - Fee Related
- 1999-03-10 DE DE19910695A patent/DE19910695C1/de not_active Expired - Lifetime
-
2000
- 2000-02-28 DE DE50000454T patent/DE50000454D1/de not_active Expired - Lifetime
- 2000-02-28 JP JP2000604478A patent/JP2002539584A/ja active Pending
- 2000-02-28 WO PCT/DE2000/000566 patent/WO2000054354A1/de active IP Right Grant
- 2000-02-28 EP EP00912393A patent/EP1159770B1/de not_active Expired - Lifetime
- 2000-02-28 CA CA002367099A patent/CA2367099C/en not_active Expired - Fee Related
-
2001
- 2001-09-10 US US09/950,429 patent/US6841277B2/en not_active Expired - Fee Related
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US5647534A (en) * | 1994-09-22 | 1997-07-15 | Mercedes-Benz Ag | Device for heating an interior of an electric vehicle |
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Title |
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PATENT ABSTRACTS OF JAPAN vol. 1995, no. 03 28 April 1995 (1995-04-28) * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002037595A2 (de) * | 2000-10-31 | 2002-05-10 | Vaillant Gmbh | Unterdruckkammer für brennstoffzellenanlage |
WO2002037595A3 (de) * | 2000-10-31 | 2004-01-08 | Vaillant Gmbh | Unterdruckkammer für brennstoffzellenanlage |
WO2002093673A1 (en) * | 2001-05-11 | 2002-11-21 | Cellex Power Products, Inc. | Fuel cell thermal management system and method |
US6649290B2 (en) | 2001-05-11 | 2003-11-18 | Cellex Power Products, Inc. | Fuel cell thermal management system and method |
JP2002373684A (ja) * | 2001-06-18 | 2002-12-26 | Yamaha Motor Co Ltd | 燃料電池システム |
EP1724867A1 (de) * | 2005-05-18 | 2006-11-22 | Siemens Aktiengesellschaft | Verfahren zum Betrieb eines Brennstoffzellensystems sowie Brennstoffzellensystem |
EP1724866A1 (de) * | 2005-05-18 | 2006-11-22 | Siemens Aktiengesellschaft | Verfahren zur Befeuchtung eines Gases sowie Gasbefeuchtungseinrichtung |
Also Published As
Publication number | Publication date |
---|---|
EP1159770B1 (de) | 2002-09-04 |
DE19964497B4 (de) | 2017-04-27 |
DE19964497A1 (de) | 2006-11-23 |
DE50000454D1 (de) | 2002-10-10 |
CA2367099C (en) | 2008-05-06 |
US20020037444A1 (en) | 2002-03-28 |
EP1159770A1 (de) | 2001-12-05 |
JP2002539584A (ja) | 2002-11-19 |
US6841277B2 (en) | 2005-01-11 |
CA2367099A1 (en) | 2000-09-14 |
DE19910695C1 (de) | 2000-08-10 |
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