WO2010046028A1 - Dispositif d'humidification et procédé d'humidification d'un flux d'agent d'oxydation envoyé dans un empilement de piles à combustible, ainsi que système de piles à combustible - Google Patents

Dispositif d'humidification et procédé d'humidification d'un flux d'agent d'oxydation envoyé dans un empilement de piles à combustible, ainsi que système de piles à combustible Download PDF

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Publication number
WO2010046028A1
WO2010046028A1 PCT/EP2009/007165 EP2009007165W WO2010046028A1 WO 2010046028 A1 WO2010046028 A1 WO 2010046028A1 EP 2009007165 W EP2009007165 W EP 2009007165W WO 2010046028 A1 WO2010046028 A1 WO 2010046028A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel cell
cell stack
oxidant
moistening
humidifying
Prior art date
Application number
PCT/EP2009/007165
Other languages
German (de)
English (en)
Inventor
Michael Bader
Stefan Fandel
Original Assignee
Daimler Ag
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 Daimler Ag filed Critical Daimler Ag
Publication of WO2010046028A1 publication Critical patent/WO2010046028A1/fr

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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
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H01M8/04126—Humidifying
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
    • 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
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04111—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
    • 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
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H01M8/04126—Humidifying
    • H01M8/04141—Humidifying by water containing exhaust gases
    • 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
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H01M8/04126—Humidifying
    • H01M8/04149—Humidifying by diffusion, e.g. making use of membranes
    • 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
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
    • H01M8/04164—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal by condensers, gas-liquid separators or filters
    • 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
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

Definitions

  • a humidifying device and method for humidifying an oxidant stream and fuel cell system that can be supplied to a fuel cell stack
  • the invention relates to a humidifying device for humidifying an oxidant flow which can be supplied to a fuel cell stack via a supply line, with a compressor for compressing the oxidizing agent, with a metering device, by means of which a liquid medium can be introduced into the supply line, and with a heat exchanger, by means of which the oxidant flow can be cooled , Furthermore, the invention relates to a fuel cell system with a fuel cell stack and a humidification device, and to a method for humidifying an oxidant flow that can be supplied to a fuel stack.
  • a contact humidifier For the moistening of reaction gases for a fuel cell stack, a contact humidifier is known from the prior art in which liquid water can be introduced into the gas stream to be humidified.
  • the introduction of the liquid water into a feed line leading to the fuel cell stack takes place downstream of a compressor for compressing the oxidant stream.
  • the humidified oxidant stream can be cooled by means of a heat exchanger, to which cooling water can be fed as cooling medium for cooling the oxidant stream.
  • a disadvantage of such a humidifying is the fact that the cooling water by heat exchange with the environment to escape energy, such as by means of a cooling water cooler, which brings a comparatively high complexity of humidification with it.
  • the object of the present invention is therefore to provide an improved humidifying device of the type mentioned in the introduction and an improved method for humidifying.
  • This object is achieved by a moistening device having the features of patent claim 1.
  • this object is achieved by a fuel cell system having the features of patent claim 7, and by a method for moistening with the features of patent claim 8.
  • the use of exhaust air of the fuel cell stack as a cooling medium instead of liquid cooling water advantageously allows a benefit of a temperature gradient between the compressed oxidant and the already arising exhaust air of the fuel cell stack. An effort for the provision and cooling of liquid cooling water can thus be omitted.
  • the compressed oxidant may be compressed atmospheric air.
  • the exhaust air of the fuel cell stack is also easy to handle even at ambient temperatures below freezing. Thus, an improved humidifying device is provided.
  • a membrane humidifier is arranged downstream of the heat exchanger, which is supplied via the supply line, the oxidizing agent and the exhaust air line exhaust air.
  • a two-stage humidifying device allows to use a comparatively small membrane humidifier designed for normal operation of the fuel cell stack.
  • the downstream of the formed as a gas / gas charge air cooler heat exchanger arranged membrane humidifier has a particularly high efficiency on.
  • the charge air cooler arranged upstream of the membrane humidifier can be dimensioned particularly small, since the compressed oxidant flow flowing through the charge air cooler has a comparatively low temperature as a result of heat extraction, which results from the evaporation enthalpy to be applied for evaporating the liquid medium.
  • the liquid medium may be merely for additional humidification while causing basic humidification by the membrane humidifier.
  • a comparatively low requirement on the accuracy of the metered amount of the liquid medium is to be set in an advantageous manner. Too little dosing is not functional critical, and overdosing also harmless, since the relative humidity of the oxidant stream is comparatively far from the dew point, so that a complete evaporation of the liquid medium is expected.
  • the circumstance also contributes to the fact that the oxidant stream immediately downstream of the compressor has a particularly high temperature.
  • a collecting device is provided for collecting generated in the fuel cell stack product water, wherein the metering device is acted upon with accumulated product water, and being provided by the product water at least partially insertable into the supply liquid medium ,
  • the generated product water is characterized by a particularly high purity, and it is therefore particularly well suited for dosing into the feed line. Furthermore, smaller quantities of product water have to be disposed of elsewhere.
  • an amount of the liquid medium metered into the oxidant stream can be set as a function of an operating temperature of the fuel cell stack.
  • the fuel cell stack is provided with oxidizing agent having a comparatively high relative humidity.
  • the high load of the drive unit is associated with a particularly high operating temperature of the fuel cell stack, so that the comparatively hot fuel cell stack by introducing the liquid medium into the oxidant stream is adapted to the operating condition, high relative humidity is available.
  • the operating temperature of the fuel cell stack may be determined by detecting a temperature of the cooling water of the fuel cell stack. This metered addition of the liquid medium as a function of the operating temperature of the fuel cell stack is particularly advantageous in two-stage humidification of the oxidant stream, ie, when the oxidant stream is humidified downstream of the heat exchanger by means of the membrane humidifier.
  • the invention further relates to a fuel cell system with a fuel cell stack and a humidification device according to the invention.
  • The, in particular for mobile applications, preferably in the motor vehicle, usable fuel cell system may include a variety of not described in detail herein in their functions, other components, for example, at least a return device for unused fuel and / or the oxidizing agent.
  • the oxidizing agent may be oxygen or an oxygen-containing gas, e.g. Include air.
  • To set and monitor a pressure of the fuel and / or the oxidant means may be provided, such as pressure regulating members, valves, pressure sensors and the like.
  • a further aspect of the invention relates to a method for moistening an oxidant flow that can be supplied to a fuel cell stack via a feed line.
  • a compressor provides a compressed oxidant
  • a metering device introduces a liquid medium into the supply line.
  • the humidified oxidant stream is cooled by means of a heat exchanger, wherein the heat exchanger is supplied as a cooling medium for cooling the oxidant stream exhaust air of the fuel cell stack via an exhaust air line.
  • a fuel cell system 10 of a motor vehicle schematically illustrated in the figure comprises a fuel cell stack 12 and a humidifier 14.
  • the humidifier 14 comprises a membrane humidifier 16 and a contact humidifier 18 upstream of the membrane humidifier 16.
  • the contact humidifier 18 is designed as a charge air cooler which serves to cool an oxidant stream, wherein the oxidant stream via a supply line 20 a cathode chamber 22 of the fuel cell stack 12 can be fed.
  • a metering device 24 is connected upstream of the contact humidifier 18, by means of which product water generated in the fuel cell stack can be introduced into the supply line 20 upstream of the contact humidifier 18.
  • the designed as a gas / gas charge air cooler contact humidifier 18 can be supplied as a cooling medium for cooling the oxidant stream exhaust air of the fuel cell stack 12 via an exhaust air line 26.
  • An inlet air space 28 of the contact humidifier 18 is arranged upstream of an inlet air space 30 of the membrane humidifier 16 in the supply line 20.
  • a Exhaust air space 32 of the membrane humidifier 16 upstream of an exhaust air space 34 of the contact humidifier 18 in the exhaust duct 26 is arranged.
  • a basic humidification of the oxidant flow supplied to the fuel cell stack 12 is provided by means of the membrane humidifier 16.
  • the membrane humidifier 16 there is a transition of moisture from the exhaust air chamber 32 in the supply air space 30, since the exhaust air chamber 32 is supplied via the exhaust duct 26 with moisture and product water exhibiting exhaust air of the cathode compartment 22 of the fuel cell stack 12.
  • the exhaust air space 34 of the charge air cooler serving as a contact humidifier 18 in the Zu Kunststoffraum 28 of the contact humidifier 18 located located oxidant stream heat and transferred to the cooler, located in the exhaust air space 34 exhaust air.
  • the outgoing from the cathode compartment 22 of the fuel cell stack 12 exhaust duct 26 is connected downstream of the contact humidifier 18 to a turbine 36.
  • the turbine 36 is thus exhaust air of the contact humidifier 18 can be fed.
  • heat exchange between compressed supply air and exhaust air of the fuel cell stack 12 of the turbine 36 comparatively high-energy exhaust air can be supplied.
  • the turbine 36 is coupled via a shaft 38 with a compressor 40 in the manner of an exhaust gas turbocharger.
  • the compressor 40 can be driven by means of an electric motor 42 that provides a drive torque to the shaft 38.
  • the contact humidifier 18 serves as an additional humidifier, which is then used to humidify the oxidant stream when the fuel cell stack 12 provides comparatively high power.
  • the metering device 24 can be supplied with the product water via a product water line 44, which was generated in the fuel cell stack 12.
  • the membrane humidifier 16 it is possible to make the membrane humidifier 16 comparatively small, since it only has to provide sufficient moisture for normal operation of the fuel cell stack 12.
  • the contact humidifier 18 is used in operating the fuel cell system 10 as an optional, particularly high loads covering additional humidifier, are on accuracy in dosing the introduced by means of the metering device 24 in the supply line 20 amount of product water only small, and thus particularly easy adjustable requirements.
  • the introduction of product water upstream of the gas / gas intercooler contributes to improving its efficiency.
  • Both the membrane humidifier 16 and the contact humidifier 18 are presently minimized in terms of their sizes and costs.
  • the contact humidifier 18 provides the then necessary additional moisture.
  • the injection of the product water between the compressor 40 and the inlet air space 28 of the contact humidifier 18, that is in the particularly high temperature having oxidant flow causes a particularly rapid evaporation of the product water.
  • the evaporation of the product water causes increased cooling of the oxidant stream in the supply air space 28 of the contact humidifier 18, whereby the membrane humidifier 16 is supplied cooler, the membrane of the humidifier gentle supply air.
  • a collection device (not shown here) is provided, from which a portion of the product water can be supplied to the metering device 24 via the product water line 44.
  • a coolant circuit is furthermore provided, wherein a load of the fuel cell stack 12 can be detected on the basis of a temperature of the coolant in the coolant circuit.
  • the coolant circuit of the fuel cell stack 12 in this case provides heating energy, by means of which, even at ambient temperatures of less than 0 0 C, the metering device 24 to be supplied amount of thawed product water is available.
  • the product water is only to be introduced into the supply line 20 via the metering device 24 when an operating temperature of the fuel cell stack 12 requires additional humidifying of the oxidant stream, it is ensured that the product water metering can then take place if the capacity of the membrane humidifier 16 to humidify the oxidant stream their limit is encountered.
  • the liquid product water introduced upstream of the contact humidifier 18 is needed only after the heating of the fuel cell system 10.
  • an electric heater or the like may be provided for providing and / or tempering the product water.
  • anode space 46 and a membrane 48 separating the anode space 46 from the cathode space 22 are schematically shown.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)

Abstract

L'invention concerne un dispositif d'humidification (14) destiné à humidifier un flux d'agent d'oxydation pouvant être envoyé par une conduite d'alimentation (20) vers un empilement de piles à combustible (12), avec un compresseur (40) destiné à comprimer le flux d'agent d'oxydation, avec un dispositif de dosage (24) grâce auquel un flux liquide peut être envoyé dans la conduite d'alimentation (20), et avec un échangeur thermique (18) grâce auquel le flux oxydant peut être refroidi. Comme fluide de refroidissement destiné à refroidir le flux d'agent oxydant, l'échangeur thermique (18) peut recevoir l'air évacué par l'empilement de piles à combustible (12) via une conduite d'évacuation (26). L'invention concerne en outre un système de piles à combustible (10) et un procédé d'humidification d'un flux d'agent d'oxydation.
PCT/EP2009/007165 2008-10-24 2009-10-06 Dispositif d'humidification et procédé d'humidification d'un flux d'agent d'oxydation envoyé dans un empilement de piles à combustible, ainsi que système de piles à combustible WO2010046028A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008053151A DE102008053151A1 (de) 2008-10-24 2008-10-24 Befeuchtungseinrichtung und Verfahren zum Befeuchten eines einem Brennstoffzellenstapel zuführbaren Oxidationsmittelstroms und Brennstoffzellensystem
DE102008053151.0 2008-10-24

Publications (1)

Publication Number Publication Date
WO2010046028A1 true WO2010046028A1 (fr) 2010-04-29

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PCT/EP2009/007165 WO2010046028A1 (fr) 2008-10-24 2009-10-06 Dispositif d'humidification et procédé d'humidification d'un flux d'agent d'oxydation envoyé dans un empilement de piles à combustible, ainsi que système de piles à combustible

Country Status (2)

Country Link
DE (1) DE102008053151A1 (fr)
WO (1) WO2010046028A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014018440A1 (de) 2014-12-12 2015-06-18 Daimler Ag Brennstoffzellensystem mit einem Befeuchter
DE102014220501A1 (de) 2014-10-09 2016-04-14 Bayerische Motoren Werke Aktiengesellschaft Flüssigkeitsspeichersystem zur Speicherung einer Flüssigkeit, Brennstoffzellensystem sowie Betriebsverfahren für ein Kraftfahrzeug mit einem Brennstoffzellensystem
DE102014223906A1 (de) 2014-11-24 2016-05-25 Bayerische Motoren Werke Aktiengesellschaft Brennstoffzellensystem mit einem befeuchteten Oxidationsmittelstrom, Verfahren zum Betrieb einesBrennstoffzellensystems und Wärmetauscher für ein Brennstoffzellensystem
CN108432017A (zh) * 2015-12-21 2018-08-21 莱茵兹密封垫有限公司 气体馈送和排出系统

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015204620A1 (de) 2015-03-13 2016-09-15 Bayerische Motoren Werke Aktiengesellschaft Brennstoffzellensystem mit einem befeuchteten Oxidationsmittelstrom
DE102015220093A1 (de) 2015-10-15 2017-04-20 Bayerische Motoren Werke Aktiengesellschaft Brennstoffzellensystem mit einem befeuchteten Oxidationsmittelstrom und einem Schalldämpfer
DE102017220630A1 (de) * 2017-11-17 2019-05-23 Volkswagen Ag Befeuchtungssystem und Brennstoffzellensystem mit einem Befeuchtungssystem
DE102018112454A1 (de) * 2018-05-24 2019-11-28 Man Energy Solutions Se Vorrichtung zur Luftversorgung einer Brennstoffzelle
DE102021206058A1 (de) 2021-06-15 2022-12-15 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zum Betreiben eines Brennstoffzellensystems, Brennstoffzellensystem

Citations (5)

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DE4318818A1 (de) * 1993-06-07 1994-12-08 Daimler Benz Ag Verfahren zur Bereitstellung von Prozessluft für luftatmende Brennstoffzellensysteme
WO2004004035A2 (fr) * 2002-06-26 2004-01-08 Nissan Motor Co., Ltd. Degivrage d'assemblages de piles a combustible
WO2004070856A2 (fr) * 2003-01-31 2004-08-19 General Motors Corporation Systeme de piles a combustible pourvu d'un echangeur a recuperateur de chaleur
EP1463135A1 (fr) * 2003-03-27 2004-09-29 Nissan Motor Co., Ltd. Système des piles à combustible
WO2008089884A1 (fr) * 2007-01-22 2008-07-31 Daimler Ag Dispositif de refroidissement en circuit fermé et d'humidification dans des piles à combustible

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4318818A1 (de) * 1993-06-07 1994-12-08 Daimler Benz Ag Verfahren zur Bereitstellung von Prozessluft für luftatmende Brennstoffzellensysteme
WO2004004035A2 (fr) * 2002-06-26 2004-01-08 Nissan Motor Co., Ltd. Degivrage d'assemblages de piles a combustible
WO2004070856A2 (fr) * 2003-01-31 2004-08-19 General Motors Corporation Systeme de piles a combustible pourvu d'un echangeur a recuperateur de chaleur
EP1463135A1 (fr) * 2003-03-27 2004-09-29 Nissan Motor Co., Ltd. Système des piles à combustible
WO2008089884A1 (fr) * 2007-01-22 2008-07-31 Daimler Ag Dispositif de refroidissement en circuit fermé et d'humidification dans des piles à combustible

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014220501A1 (de) 2014-10-09 2016-04-14 Bayerische Motoren Werke Aktiengesellschaft Flüssigkeitsspeichersystem zur Speicherung einer Flüssigkeit, Brennstoffzellensystem sowie Betriebsverfahren für ein Kraftfahrzeug mit einem Brennstoffzellensystem
DE102014223906A1 (de) 2014-11-24 2016-05-25 Bayerische Motoren Werke Aktiengesellschaft Brennstoffzellensystem mit einem befeuchteten Oxidationsmittelstrom, Verfahren zum Betrieb einesBrennstoffzellensystems und Wärmetauscher für ein Brennstoffzellensystem
DE102014223906B4 (de) 2014-11-24 2021-11-11 Bayerische Motoren Werke Aktiengesellschaft Brennstoffzellensystem mit einem befeuchteten Oxidationsmittelstrom, Verfahren zum Betrieb einesBrennstoffzellensystems und Wärmetauscher für ein Brennstoffzellensystem
DE102014018440A1 (de) 2014-12-12 2015-06-18 Daimler Ag Brennstoffzellensystem mit einem Befeuchter
CN108432017A (zh) * 2015-12-21 2018-08-21 莱茵兹密封垫有限公司 气体馈送和排出系统
US10923743B2 (en) 2015-12-21 2021-02-16 Reinz-Dichtungs-Gmbh Gas supply, conditioning, and discharge systems and methods
CN108432017B (zh) * 2015-12-21 2021-07-13 莱茵兹密封垫有限公司 气体馈送和排出系统

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