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Analysis of the control structures for an integrated ethanol processor for proton exchange membrane fuel cell systems

AuthorsBasualdo, Marta; García, Vanesa M. ; Serra, Maria
KeywordsFuel cells
Bioethanol reforming
Hydrogen production
Plant wide control
Control theory
Issue Date2009
CitationJournal of Power Sources 192(1): 107-113 (2009)
AbstractThe aim of this work is to investigate which would be a good preliminary plantwide control structure for the process of Hydrogen production from bioethanol to be used in a proton exchange membrane (PEM) accounting only steady-state information. The objective is to keep the process under optimal operation point, that is doing energy integration to achieve the maximum efficiency. Ethanol, produced from renewable feedstocks, feeds a fuel processor investigated for steam reforming, followed by high- and low-temperature shift reactors and preferential oxidation, which are coupled to a polymeric fuel cell. Applying steady-state simulation techniques and using thermodynamic models the performance of the complete system with two different control structures have been evaluated for the most typical perturbations. A sensitivity analysis for the key process variables together with the rigorous operability requirements for the fuel cell are taking into account for defining acceptable plantwide control structure. This is the first work showing an alternative control structure applied to this kind of process.
Publisher version (URL)http://dx.doi.org/10.1016/j.jpowsour.2008.12.099
Appears in Collections:(IRII) Artículos
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