Publication
Dynamic modeling and controllability analysis of an ethanol reformer for fuel cell application
Journal Article (2010)
Journal
International Journal of Hydrogen Energy
Pages
9768-9775
Volume
35
Number
18
Doc link
http://dx.doi.org/10.1016/j.ijhydene.2009.09.064
File
Authors
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García Mariel, Vanesa
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López, Eduardo
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Serra Prat, Maria
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Llorca, Jordi
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Riera Colomer, Jordi
Projects associated
Abstract
This work presents a controllability analysis of a low temperature ethanol reformer based on a cobalt catalyst for fuel cell application. The study is based on a nonlinear dynamic model of a reformer which operates in three separate stages: ethanol dehydrogenation to acetaldehyde and hydrogen, acetaldehyde steam reforming, and water gas shift reaction. The controllability analysis is focused on the rapid dynamics due to mass balances and is based on a linearization of the complex non-linear model of the reformer. RGA, CN and MRI analysis tools are applied to the linear model suggesting that a good performance can be obtained with decentralized control for frequencies up to 0.1 rad/s.
Categories
control system analysis, power generation control, power system control.
Author keywords
hydrogen production, ethanol steam reforming, sensitivity analysis, controllability analysis
Scientific reference
V. García, E. López, M. Serra, J. Llorca and J. Riera. Dynamic modeling and controllability analysis of an ethanol reformer for fuel cell application. International Journal of Hydrogen Energy, 35(18): 9768-9775, 2010.
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