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1. WO2020064210 - FUEL CELL SYSTEM AND METHOD FOR OPERATING A FUEL CELL SYSTEM

Publication Number WO/2020/064210
Publication Date 02.04.2020
International Application No. PCT/EP2019/071773
International Filing Date 14.08.2019
IPC
H01M 8/04029 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
04007related to heat exchange
04029Heat exchange using liquids
H01M 8/0432 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
04298Processes for controlling fuel cells or fuel cell systems
04313characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
0432Temperature; Ambient temperature
H01M 8/04746 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
04298Processes for controlling fuel cells or fuel cell systems
04694characterised by variables to be controlled
04746Pressure; Flow
H01M 8/1018 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
1016characterised by the electrolyte material
1018Polymeric electrolyte materials
CPC
H01M 2008/1095
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
1095Fuel cells with polymeric electrolytes
H01M 8/04029
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
04007related to heat exchange
04029Heat exchange using liquids
H01M 8/04358
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
04298Processes for controlling fuel cells or fuel cell systems
04313characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
0432Temperature; Ambient temperature
04358of the coolant
H01M 8/04768
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
04298Processes for controlling fuel cells or fuel cell systems
04694characterised by variables to be controlled
04746Pressure; Flow
04768of the coolant
Applicants
  • AUDI AG [DE]/[DE]
Inventors
  • RUF, Markus
  • STAUB, Hannah
Priority Data
10 2018 216 267.025.09.2018DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) BRENNSTOFFZELLENSYSTEM UND VERFAHREN ZUM BETREIBEN EINES BRENNSTOFFZELLENSYSTEMS
(EN) FUEL CELL SYSTEM AND METHOD FOR OPERATING A FUEL CELL SYSTEM
(FR) SYSTÈME DE PILES À COMBUSTIBLE ET PROCÉDÉ POUR FAIRE FONCTIONNER UN SYSTÈME DE PILES À COMBUSTIBLE
Abstract
(DE)
Die Erfindung betrifft ein Verfahren zum Betreiben eines Brennstoffzellensystems (100), welches mindestens eine Brennstoffzelle (106) aufweist, die in einen einen Kühler (104) umfassenden Kühlmittelkreislauf (102) eingebunden ist, in welchem eine erste Kühlmittelpumpe (108) zur Zirkulation eines Kühlmittels vorliegt, und welchem eine Bypassleitung (110) zugeordnet ist, in die eine zur ersten Kühlmittelpumpe (108) parallel geschaltete zweite Kühlmittelpumpe (112) eingebunden ist, umfassend die Schritte: - Feststellen, dass der Kühler (104) eine erhöhte Kühlleistung bereitzustellen hat, die gegenüber einer momentanen Kühlleistung des Kühlers (104) erhöht ist, und - Erhöhen eines Volumenstroms des durch den Kühler (104) geförderten Kühlmittels durch Erhöhen einer Drehzahl der in die Bypassleitung (110) eingebundenen zweiten Kühlmittelpumpe (112). Außerdem betrifft die Erfindung ein Brennstoffzellensystem (100).
(EN)
The invention relates to a method for operating a fuel cell system (100), which has at least one fuel cell (106), which is integrated into a coolant circuit (102) comprising a cooler (104) and in which a first coolant pump (108), for circulating a coolant, is present, and with which a bypass line (110) is associated, into which a second coolant pump (112), connected parallel to the first coolant pump (108), is integrated, comprising the steps: - determining that the cooler (104) is required to provide increased cooling power, which is higher than a current cooling power of the cooler (104), and - increasing a volume flow of the coolant conveyed through the cooler (104) by increasing a speed of the second coolant pump (112) integrated in the bypass line (110). The invention furthermore relates to a fuel cell system (100).
(FR)
L'invention concerne un procédé pour faire fonctionner un système de piles à combustible (100), lequel possède au moins une pile à combustible (106), qui est intégrée dans un circuit de fluide de refroidissement (102) comprenant un refroidisseur (104), dans lequel se trouve une première pompe à fluide de refroidissement (108) destinée à faire circuler un fluide de refroidissement et auquel est associée une conduite de dérivation (110) dans laquelle est intégrée une deuxième pompe à fluide de refroidissement (112) montée en parallèle avec la première pompe à fluide de refroidissement (108). Le procédé selon l'invention comprend les étapes suivantes : constatation que le refroidisseur (104) doit fournir une capacité de refroidissement accrue, qui est accrue par rapport à une capacité de refroidissement instantanée du refroidisseur (104), et ; augmentation d'un débit volumique du fluide de refroidissement transporté à travers le refroidisseur (104) en augmentant une vitesse de rotation de la deuxième pompe à fluide de refroidissement (112) intégrée dans la conduite de dérivation (110). L’invention concerne en outre un système de piles à combustible (100).
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