eprintid: 1419709
rev_number: 41
eprint_status: archive
userid: 608
dir: disk0/01/41/97/09
datestamp: 2014-02-23 19:44:02
lastmod: 2021-09-17 22:24:37
status_changed: 2014-02-23 19:44:02
type: article
metadata_visibility: show
item_issues_count: 0
creators_name: Noorkami, M
creators_name: Robinson, JB
creators_name: Meyer, Q
creators_name: Obeisun, OA
creators_name: Fraga, ES
creators_name: Reisch, T
creators_name: Shearing, PR
creators_name: Brett, DJL
title: Effect of temperature uncertainty on polymer electrolyte fuel cell performance
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F43
keywords: Polymer electrolyte fuel cell, Polarisation area, Temperature uncertainty, Monte Carlo sampling, Thermal imaging
note: © 2013, The Authors. Published by Elsevier Ltd. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-No Derivative
Works License, which permits non-commercial use, distribution, and reproduction in any medium, provided the original author and
source are credited.
abstract: The temperature of operation is a key parameter in determining the performance and durability of a polymer electrolyte fuel cell (PEFC). Controlling temperature and understanding its distribution and dynamic response is vital for effective operation and design of better systems. The sensitivity to temperature means that uncertainty in this parameter leads to variable response and can mask other factors affecting performance. It is important to be able to determine the impact of temperature uncertainly and quantify how much PEFC operation is influenced under different operating conditions. Here, a simple lumped mathematical model is used to describe PEFC performance under temperature uncertainty. An analytical approach gives a measure of the sensitivity of performance to temperature at different nominal operating temperatures and electrical loadings. Whereas a statistical approach, using Monte Carlo stochastic sampling, provides a ‘probability map’ of PEFC polarisation behaviour. As such, a polarisation ‘area’ or ‘band’ is considered as opposed to a polarisation ‘curve’. Results show that temperature variation has the greatest effect at higher currents and lower nominal operating temperatures. Thermal imaging of a commercial air-cooled stack is included to illustrate the temporal and spatial temperature variation experienced in real systems.
date: 2014-01-16
official_url: http://dx.doi.org/10.1016/j.ijhydene.2013.10.156
vfaculties: VENG
oa_status: green
full_text_type: pub
primo: open
primo_central: open_green
verified: verified_manual
elements_source: WoS-Lite
elements_id: 920809
doi: 10.1016/j.ijhydene.2013.10.156
lyricists_name: Brett, Daniel
lyricists_name: Fraga, Eric
lyricists_name: Obeisun, Oluwamayowa
lyricists_name: Robinson, James
lyricists_name: Shearing, Paul
lyricists_id: DBRET49
lyricists_id: ESFRA78
lyricists_id: OOBEI82
lyricists_id: ROBIN60
lyricists_id: PSHEA33
full_text_status: public
publication: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
volume: 39
number: 3
pagerange: 1439 - 1448
issn: 0360-3199
citation:        Noorkami, M;    Robinson, JB;    Meyer, Q;    Obeisun, OA;    Fraga, ES;    Reisch, T;    Shearing, PR;           Noorkami, M;  Robinson, JB;  Meyer, Q;  Obeisun, OA;  Fraga, ES;  Reisch, T;  Shearing, PR;  Brett, DJL;   - view fewer <#>    (2014)    Effect of temperature uncertainty on polymer electrolyte fuel cell performance.                   INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 39  (3)   1439 - 1448.    10.1016/j.ijhydene.2013.10.156 <https://doi.org/10.1016/j.ijhydene.2013.10.156>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/1419709/1/1-s2.0-S0360319913026712-main.pdf