Performance improvement by temperature control of an open-cathode PEM fuel cell system

The work presented in this article combines experimental analysis and theoretical studies of temperature effects on the performance of an open-cathode, self-humidified PEM fuel cell system for the design of optimal control strategies. The experimental analysis shows the great potential of improving...

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Detalles Bibliográficos
Autores principales: Strahl, S., Husar, A., Puleston, Pablo Federico, Riera, J.
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2014
Materias:
Ingeniería
PEMFC
Open-cathode
Temperature experiments
Catalyst performance modeling
Extremum seeking control
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/127136
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-127136
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ingeniería
PEMFC
Open-cathode
Temperature experiments
Catalyst performance modeling
Extremum seeking control
spellingShingle Ingeniería
PEMFC
Open-cathode
Temperature experiments
Catalyst performance modeling
Extremum seeking control
Strahl, S.
Husar, A.
Puleston, Pablo Federico
Riera, J.
Performance improvement by temperature control of an open-cathode PEM fuel cell system
topic_facet Ingeniería
PEMFC
Open-cathode
Temperature experiments
Catalyst performance modeling
Extremum seeking control
description The work presented in this article combines experimental analysis and theoretical studies of temperature effects on the performance of an open-cathode, self-humidified PEM fuel cell system for the design of optimal control strategies. The experimental analysis shows the great potential of improving the system performance by proper thermal management. The most significant temperature dependent parameter of the system under study is the exchange current density. On the one hand it is influenced positively by a temperature increase as this lowers the activation barrier. On the other hand a higher temperature causes a reduction of the electrochemical active sites in the cathode catalyst layer (CCL) due to lower water content in the ionomer and primary pores. Dynamic models for fuel cell temperature, liquid water transport and the related electrochemistry have been developed and validated against the experiment. A cascaded Extremum Seeking control algorithm with a local PI controller is proposed to regulate the temperature to a fuel cell voltage maximum. However, the slow dynamics of the temperature related catalyst-drying effect on performance complicate the optimal thermal management with model-free control strategies.
format Articulo
Preprint
author Strahl, S.
Husar, A.
Puleston, Pablo Federico
Riera, J.
author_facet Strahl, S.
Husar, A.
Puleston, Pablo Federico
Riera, J.
author_sort Strahl, S.
title Performance improvement by temperature control of an open-cathode PEM fuel cell system
title_short Performance improvement by temperature control of an open-cathode PEM fuel cell system
title_full Performance improvement by temperature control of an open-cathode PEM fuel cell system
title_fullStr Performance improvement by temperature control of an open-cathode PEM fuel cell system
title_full_unstemmed Performance improvement by temperature control of an open-cathode PEM fuel cell system
title_sort performance improvement by temperature control of an open-cathode pem fuel cell system
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/127136
work_keys_str_mv AT strahls performanceimprovementbytemperaturecontrolofanopencathodepemfuelcellsystem
AT husara performanceimprovementbytemperaturecontrolofanopencathodepemfuelcellsystem
AT pulestonpablofederico performanceimprovementbytemperaturecontrolofanopencathodepemfuelcellsystem
AT rieraj performanceimprovementbytemperaturecontrolofanopencathodepemfuelcellsystem
bdutipo_str Repositorios
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