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Etude technico-économique de la production d'hydrogène à partir de l'électrolyse haute température pour différentes sources d'énergie thermique

Abstract : This work focus on the techno-economic study of massive hydrogen production by the High Temperature Electrolysis (HTE) process and also deals with the possibility of producing the steam needed in the process by using different thermal energy sources. Among several sources, those retained in this study are the biomass and domestic waste incineration units, as well as two nuclear reactors (European Pressurised water Reactor - EPR and Sodium Fast Reactor - SFR). Firstly, the technical evaluation of the steam production by each of these sources was carried out. Then, the design and modelling of the equipments composing the process, specially the electrolysers (Solid Oxides Electrolysis Cells), are presented. Finally, the hydrogen production cost for each energy sources coupled with the HTE process is calculated. Moreover, several sensibility studies were performed in order to determine the process key parameter and to evaluate the influence of the unit size effect, the electric energy cost, maintenance, the cells current density, their investment cost and their lifespan on the hydrogen production cost. Our results show that the thermal energy cost is much more influent on the hydrogen production cost than the steam temperature at the outlet stream of the thermal source. It seems also that the key parameters for this process are the electric energy cost and the cells lifespan. The first one contributes for more than 70% of the hydrogen production cost. From several cell lifespan values, it seems that a 3 year value, rather than 1 year, could lead to a hydrogen production cost reduced on 34%. However, longer lifespan values going from 5 to 10 years would only lead to a 8% reduction on the hydrogen production cost.
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Submitted on : Tuesday, August 11, 2009 - 8:00:00 AM
Last modification on : Friday, October 23, 2020 - 4:59:05 PM
Long-term archiving on: : Thursday, September 30, 2010 - 9:11:49 PM

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  • HAL Id : pastel-00005346, version 1

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Rodrigo Rivera-Tinoco. Etude technico-économique de la production d'hydrogène à partir de l'électrolyse haute température pour différentes sources d'énergie thermique. Sciences de l'ingénieur [physics]. École Nationale Supérieure des Mines de Paris, 2009. Français. ⟨NNT : 2009ENMP1629⟩. ⟨pastel-00005346⟩

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