Please use this identifier to cite or link to this item:
|Title:||Performance evaluation of a polymer electrolyte fuel cell with a dead-end anode: A computational fluid dynamic study|
|Authors:||Sasmito, A.P. |
Polymer electrolyte fuel cell
|Source:||Sasmito, A.P., Mujumdar, A.S. (2011-08). Performance evaluation of a polymer electrolyte fuel cell with a dead-end anode: A computational fluid dynamic study. International Journal of Hydrogen Energy 36 (17) : 10917-10933. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ijhydene.2011.05.171|
|Abstract:||The operation of polymer electrolyte fuel cell (PEFC) with a dead-end anode requires careful gas and water management to achieve optimal operating performance. The amount of water accumulated in the anode and nitrogen crossover are particularly important factors. To ascertain (i) the behavior of a PEFC with a dead-end anode, (ii) the accumulation of water and nitrogen in the anode cell with time, and (iii) efficient purging strategies to manage the gas and water, a transient PEFC model with a dead-end anode was developed and analyzed. The model assumes a two-phase flow and solves the governing equations of conservation of mass, momentum, species, energy, charge, coupled with a phenomenological membrane model and agglomerate model for catalyst layer. The model results indicate that water and nitrogen can accumulate in the anode region with time, such that the amount of available hydrogen decreases and hence the cell performance drops. The accumulation rate is found to be closely linked to the current that is drawn from the cell. Further, it is found that to alleviate the problem of build-up of nitrogen and water, the purge frequency and duration of the purge play important roles in affecting cell performance. The transient behavior and impact of the relevant operating conditions obtained from the simulation results can be used for development of efficient purging strategies. © 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.|
|Source Title:||International Journal of Hydrogen Energy|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 28, 2018
WEB OF SCIENCETM
checked on Feb 21, 2018
checked on Feb 27, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.