DocumentCode
2462337
Title
Dynamics and control of membrane hydration in a PEMFC
Author
Ahmed, Syed ; Chmielewski, Donald J.
Author_Institution
Dept. of Chem. & Biol. Eng., Illinois Inst. of Technol., Chicago, IL, USA
fYear
2009
fDate
10-12 June 2009
Firstpage
2648
Lastpage
2653
Abstract
The subject of water management is a key issue in the design and operation of Polymer Electrolyte Membrane Fuel Cells (PEMFC). In this paper we present a dynamic model central to understanding the water management and flooding issue. First we consider membrane hydration and show how the interplay between electro-osmotic drag and back-diffusion determine ionic conductivity. The model is then used to identify appropriate manipulated variables for controlling the location and shape of the hydration profile within the membrane.
Keywords
ionic conductivity; membranes; polymer electrolytes; power control; power system control; proton exchange membrane fuel cells; solvation; back-diffusion; electro-osmotic drag; flooding; ionic conductivity; membrane hydration profile; polymer electrolyte membrane fuel cells; water management; Anodes; Biomembranes; Cathodes; Control systems; Electrons; Floods; Fuel cells; Hydrogen; Power system modeling; Shape control;
fLanguage
English
Publisher
ieee
Conference_Titel
American Control Conference, 2009. ACC '09.
Conference_Location
St. Louis, MO
ISSN
0743-1619
Print_ISBN
978-1-4244-4523-3
Electronic_ISBN
0743-1619
Type
conf
DOI
10.1109/ACC.2009.5160013
Filename
5160013
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