Proton exchange membrane fuel cell operation and degradation in short-circuit.

International audienceThis paper presents an experimental study dealing with operation and degradation during an electrical short circuit of a proton exchange membrane fuel cell stack. The physical quantities in the fuel cell (electrical voltage and current, gas stoichiometry, pressures, temperatures and gas humidity) are studied before, during and after the failure. After a short circuit occurs, a high peak of current appears but decreases to stabilize in a much lower value. The voltage drops in all the cells and even some cells presents reversal potentials. The degradation is quantified by using electrochemical impedance spectroscopy

Fault Diagnosis and Identification of Proton Exchange Membrane Fuel Cell System Using Electrochemical Impedance Spectroscopy Classification

This paper deals with fault diagnosis of a Proton Exchange Membrane Fuel Cell (PEMFC) using a supervised method of classification coupled with Electrochemical Impedance Spectroscopy (EIS). The purpose is to be able to detect if the fuel cell is in abnormal operating conditions and also to isolate the fault. To reach this aim, a classification method is tested on three different stacks, from different electrical power levels. The results exhibit good performances and an acceptable calculation time what can allow to make some on-line diagnosis

A review on existing modelling methodologies for PEM Fuel Cell Systems

International audienceThis paper is a common review research paper written in the framework of the "Energy program" of the French National Centre for Scientific Research (CNRS). In this program, funding has been provided to a project aiming to federate all the French competencies around fuel cell systems. Thus, as a first achievement, a review on existing modelling methodologies for PEM fuel cell systems is here proposed

A review on existing modelling methodologies for PEM Fuel Cell Systems

International audienceThis paper is a common review research paper written in the framework of the "Energy program" of the French National Centre for Scientific Research (CNRS). In this program, funding has been provided to a project aiming to federate all the French competencies around fuel cell systems. Thus, as a first achievement, a review on existing modelling methodologies for PEM fuel cell systems is here proposed

A review on existing modelling methodologies for PEM Fuel Cell Systems

International audienceThis paper is a common review research paper written in the framework of the "Energy program" of the French National Centre for Scientific Research (CNRS). In this program, funding has been provided to a project aiming to federate all the French competencies around fuel cell systems. Thus, as a first achievement, a review on existing modelling methodologies for PEM fuel cell systems is here proposed

A review on existing modelling methodologies for PEM Fuel Cell Systems

International audienceThis paper is a common review research paper written in the framework of the "Energy program" of the French National Centre for Scientific Research (CNRS). In this program, funding has been provided to a project aiming to federate all the French competencies around fuel cell systems. Thus, as a first achievement, a review on existing modelling methodologies for PEM fuel cell systems is here proposed

A review on existing modelling methodologies for PEM Fuel Cell Systems

International audienceThis paper is a common review research paper written in the framework of the "Energy program" of the French National Centre for Scientific Research (CNRS). In this program, funding has been provided to a project aiming to federate all the French competencies around fuel cell systems. Thus, as a first achievement, a review on existing modelling methodologies for PEM fuel cell systems is here proposed

A review of existing modelling methodologies for PEM fuel cell systems

International audienceThis paper is a common review research paper writt en in the framework of the “Energy program” of the French National Centre for Scientific Resear ch (CNRS). In this program, funding has been provided to a project aiming to federate all the French competencies around fuel cell systems. Thus, as a first achievement, a review on existing modelling methodologies for PEM fuel cell systems is here propose