[Home ] [Archive]   [ فارسی ]  
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
Main Menu
Home::
Journal Information::
Articles archive::
For Authors::
For Reviewers::
Registration::
Contact us::
Site Facilities::
::
Search in website

Advanced Search
..
Receive site information
Enter your Email in the following box to receive the site news and information.
..
The 9th International Energy Conference
..
:: Volume 15, Issue 1 (4-2012) ::
IJE 2012, 15(1): 0-0 Back to browse issues page
The Impact of Operational Conditions on Degradation Mechanisms in Polymer Electrolyte Membrane Fuel Cells
Abstract:   (9548 Views)
Performance degradation remains as one of the primary limitations for practical applications of proton exchange membrane (PEM) fuel cells. The performance of a PEM fuel cell stack is affected by many internal and external factors, such as fuel cell design and assembly, degradation of materials, operational conditions, and impurities or contaminants. Performance degradation is unavoidable, but the degradation rate can be minimized through a comprehensive understanding of degradation and failure mechanisms. In present work, a single PEM fuel cell is investigated. Membrane and catalyst layers (anode and cathode electrodes) are considered as the critical components that affect the degradation of the cell. The model used in this work, diagnosis degradation of those layers (platinum degradation in catalyst layers and membrane thinning and dehydration in polymer membrane) and demonstrate degradations continuously, during fuel cell life time. The aim of this paper is to investigate the impact of operational condition of a single PEM fuel cell on the system performance, afterwards developed model applied to a case study and results are presented. Results indicate, at high temperature and pressure, and low humidity degradation mechanisms accelerated, these faulty conditions are amongst the most critical for fuel cell durability.
Keywords: PEM fuel cell, Performance, Degradation mechanism, Modeling, Operational condition
Full-Text [PDF 954 kb]   (1594 Downloads)    
Type of Study: Research | Subject: Energy Planning Models
Received: 2012/10/17 | Published: 2012/04/15
Add your comments about this article
Your username or Email:

CAPTCHA


XML   Persian Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

The Impact of Operational Conditions on Degradation Mechanisms in Polymer Electrolyte Membrane Fuel Cells. IJE 2012; 15 (1)
URL: http://necjournals.ir/article-1-342-en.html


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 15, Issue 1 (4-2012) Back to browse issues page
نشریه انرژی ایران Iranian Journal of Energy
Persian site map - English site map - Created in 0.04 seconds with 39 queries by YEKTAWEB 4645