To access the full text documents, please follow this link: http://hdl.handle.net/2117/23625

Electrode structure effects on the performance of open-cathode proton exchange membrane fuel cells: A multiscale modeling approach
Strahl, Stephan; Husar, Attila Peter; Franco, Alejandro A.
Universitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial; Universitat Politècnica de Catalunya. ACES - Control Avançat de Sistemes d'Energia
In this paper we present a new dynamic multiscale model of an open-cathode Polymer Electrolyte Membrane Fuel Cell (PEMFC). The model describes two-phase water transport, electrochemistry and thermal management within a framework that combines a Computational Fluid Dynamics (CFD) approach with a micro-structurally-resolved model predicting the water filling dynamics of the electrode pores and the impact of these dynamics on the evolution of the electrochemically active surface area (ECSA). The model allows relating for the first time the cathode electrode structure to the cell voltage transient behavior during experimental changes in fuel cell temperature. The effect of evaporation rates, desorption rates and temperature changes on the performance of four different electrode pore size distributions are explored using steady-state and transient numerical simulations. The results are discussed with respect to water management and temperature control. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
Peer Reviewed
Àrees temàtiques de la UPC::Informàtica::Automàtica i control
Polymer electrolyte membrane fuel cell
Electric power systems -- Control
PEMFC
Open-cathode
Electrode structure
Water transport
Multiscale modeling
LIQUID WATER TRANSPORT
PEMFC CATALYST LAYERS
GAS-DIFFUSION LAYER
POLYMER-ELECTROLYTE
MATHEMATICAL-MODEL
2-PHASE FLOW
TRANSIENT ANALYSIS
TEMPERATURE-RANGE
AGING MECHANISMS
23-120-DEGREES-C
Sistemes elèctrics de potència -- Control
info:eu-repo/semantics/publishedVersion
Article
         

Show full item record

Related documents

Other documents of the same author

Strahl, Stephan; Gasamans Rodríguez, Noemí; Llorca Piqué, Jordi; Husar, Attila Peter
Strahl, Stephan; Perrier, Michel; Husar, Attila Peter; Riera, Jordi (Riera Colomer); Serra, Maria
Strahl, Stephan; Gasamans Rodríguez, Noemí; Llorca Piqué, Jordi; Husar, Attila Peter
 

Coordination

 

Supporters