An improved thermal control of open cathode proton exchange membrane fuel cell |
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| Affiliation: | 1. Université de Tunis El Manar, Ecole Nationale d’Ingenieurs de Tunis, LR11ES15 Laboratoire des Systèmes Electriques, 1002, Tunis, Tunisia;2. Institut de Recherche en Énergie Électrique de Nantes-Atlantique IREENA (EA 4642), Université de Nantes, 37 Boulevard de l’Université, BP 406, 44602, Saint-Nazaire Cedex, France;3. Université de Carthage, Ecole Nationale d''Architecture et d''Urbanisme, 2026, Sidi Bou Said, Tunisia;1. Electrochemical Innovation Lab, Department of Chemical Engineering, UCL, London, WC1E 7JE, United Kingdom;2. Phelma Grenoble INP, Grenoble, 38016, France;3. Intelligent Energy, Charnwood Building Holywell Park, Ashby Road, Loughborough, Leicestershire, LE11 3GB, United Kingdom;1. Electrochemical Innovation Lab, Department of Chemical Engineering, UCL, London, WC1E 7JE, United Kingdom;2. Intelligent Energy, Charnwood Building, Holywell Park, Ashby Road, Loughborough Leicestershire, LE11 3GB, United Kingdom;1. Department of Mechanical Engineering, Yuan Ze University, Chung-Li 32003, Taiwan, ROC;2. The Fuel Cell Center, Yuan Ze University, Chung-Li 32003, Taiwan, ROC;1. Electrochemical Innovation Lab, Department of Chemical Engineering, University College London, WC1E 7JE London, UK;2. National Physical Laboratory, Hampton Rd., Teddington, Middlesex TW11 0LW, UK;1. Department of Mining and Materials Engineering, McGill University, 3450 University, Frank Dawson Adams Bldg., Montreal, QC H3A0E8, Canada;2. Department of Mechanical Engineering, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak Darul Ridzuan, Malaysia;3. Institute Center for Energy (iEnergy), Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology, Masdar City, Abu Dhabi, United Arab Emirates |
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| Abstract: | Proton exchange membrane fuel cell is a well-known technology that has shown high efficiency and performance as a power system compared to conventional sources such as internal combustion engines. Especially, open cathode proton exchange membrane is growing more popular thanks to its simple structure, low cost and low parasitic losses. However, the open cathode fuel cell performance is highly related to the operating temperature variation and the airflow rate which is adjusted through the fan voltage. In this regard, the present study investigates the thermal management of an open cathode proton exchange membrane fuel cell. The objectives are the stack performance improvement and the stack degradation prevention. Indeed, a safety and optimal operating zone governed by the load current, the stack temperature and the air stoichiometry, is designed. This optimal operating zone is defined based on the system thermal balance and the operating constraints. Hence, the proposed control strategy deals concurrently with the stack temperature regulation and the air stoichiometry adjustment to guarantee the goals achievement. The performance of the proposed control strategy is verified through experimental studies with different operating conditions and results prove its efficiency. To properly design an appropriate control strategy, a multiphysic fuel cell model is developed based on acausal approach by mean of Matlab/Simscape and experimentally validated. |
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| Keywords: | Open cathod proton echange membrane fuel cell Control strategy Fuel cell dynamique behaviour Airflow control Stack temperature control Multiphysic model |
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