Experimental cooling mode variation of an air-cooled PEM fuel cell using second-order thermal analysis / Wan Ahmad Najmi Wan Mohamed and Rahim Atan

Thermal analysis of air-cooled Polymer Electrolyte Membrane (PEM) fuel cells for closed cathode designs are largely limited within first-order thermal analysis. Normally, closed cathode fuel cells apply the water cooling technique due to large cooling loads. Technical feasibility study in applying a...

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Main Authors: Wan Mohamed, Wan Ahmad Najmi, Atan, Rahim
Format: Article
Language:English
Published: Faculty of Mechanical Engineering (FKM) and UiTM Press 2013
Online Access:http://ir.uitm.edu.my/id/eprint/17580/
http://ir.uitm.edu.my/id/eprint/17580/1/AJ_WAN%20AHMAD%20NAJMI%20WAN%20MOHAMED%20JME%2013.pdf
id uitm-17580
recordtype eprints
spelling uitm-175802019-08-26T02:41:33Z http://ir.uitm.edu.my/id/eprint/17580/ Experimental cooling mode variation of an air-cooled PEM fuel cell using second-order thermal analysis / Wan Ahmad Najmi Wan Mohamed and Rahim Atan Wan Mohamed, Wan Ahmad Najmi Atan, Rahim Thermal analysis of air-cooled Polymer Electrolyte Membrane (PEM) fuel cells for closed cathode designs are largely limited within first-order thermal analysis. Normally, closed cathode fuel cells apply the water cooling technique due to large cooling loads. Technical feasibility study in applying air cooling as an alternative for closed cathode stack designs is reported here using a down-scaled 3-cell stack assembly. A 242 cm2 active area, 3-cell closed cathode PEM fuel cell stack, was developed with 40 integrated straight path air cooling channels in order to investigate the internal thermal effects. The objective is to identify the bulk thermal effects of the stack under cooling for further design considerations using the second-order thermal analysis approach. Tests were conducted with airflows in the range between 200 and 400 Reynolds number and load variations from 10A to 30A. Different fan settings are applied to analyze the response of the design to negative and positive pressure airflows. The temperature profiles are translated into stack cooling profiles with discussions on its polarization, cooling response behaviour and cooling effectiveness. Generally, the cooling effectiveness across all cooling modes was higher than 80% and the negative pressure fan setting provides a more consistent cooling profile but with a slower cooling response. Faculty of Mechanical Engineering (FKM) and UiTM Press 2013 Article PeerReviewed text en http://ir.uitm.edu.my/id/eprint/17580/1/AJ_WAN%20AHMAD%20NAJMI%20WAN%20MOHAMED%20JME%2013.pdf Wan Mohamed, Wan Ahmad Najmi and Atan, Rahim (2013) Experimental cooling mode variation of an air-cooled PEM fuel cell using second-order thermal analysis / Wan Ahmad Najmi Wan Mohamed and Rahim Atan. Journal of Mechanical Engineering, 10 (2). pp. 53-74. ISSN 1823-5514
repository_type Digital Repository
institution_category Local University
institution Universiti Teknologi MARA
building UiTM Institutional Repository
collection Online Access
language English
description Thermal analysis of air-cooled Polymer Electrolyte Membrane (PEM) fuel cells for closed cathode designs are largely limited within first-order thermal analysis. Normally, closed cathode fuel cells apply the water cooling technique due to large cooling loads. Technical feasibility study in applying air cooling as an alternative for closed cathode stack designs is reported here using a down-scaled 3-cell stack assembly. A 242 cm2 active area, 3-cell closed cathode PEM fuel cell stack, was developed with 40 integrated straight path air cooling channels in order to investigate the internal thermal effects. The objective is to identify the bulk thermal effects of the stack under cooling for further design considerations using the second-order thermal analysis approach. Tests were conducted with airflows in the range between 200 and 400 Reynolds number and load variations from 10A to 30A. Different fan settings are applied to analyze the response of the design to negative and positive pressure airflows. The temperature profiles are translated into stack cooling profiles with discussions on its polarization, cooling response behaviour and cooling effectiveness. Generally, the cooling effectiveness across all cooling modes was higher than 80% and the negative pressure fan setting provides a more consistent cooling profile but with a slower cooling response.
format Article
author Wan Mohamed, Wan Ahmad Najmi
Atan, Rahim
spellingShingle Wan Mohamed, Wan Ahmad Najmi
Atan, Rahim
Experimental cooling mode variation of an air-cooled PEM fuel cell using second-order thermal analysis / Wan Ahmad Najmi Wan Mohamed and Rahim Atan
author_facet Wan Mohamed, Wan Ahmad Najmi
Atan, Rahim
author_sort Wan Mohamed, Wan Ahmad Najmi
title Experimental cooling mode variation of an air-cooled PEM fuel cell using second-order thermal analysis / Wan Ahmad Najmi Wan Mohamed and Rahim Atan
title_short Experimental cooling mode variation of an air-cooled PEM fuel cell using second-order thermal analysis / Wan Ahmad Najmi Wan Mohamed and Rahim Atan
title_full Experimental cooling mode variation of an air-cooled PEM fuel cell using second-order thermal analysis / Wan Ahmad Najmi Wan Mohamed and Rahim Atan
title_fullStr Experimental cooling mode variation of an air-cooled PEM fuel cell using second-order thermal analysis / Wan Ahmad Najmi Wan Mohamed and Rahim Atan
title_full_unstemmed Experimental cooling mode variation of an air-cooled PEM fuel cell using second-order thermal analysis / Wan Ahmad Najmi Wan Mohamed and Rahim Atan
title_sort experimental cooling mode variation of an air-cooled pem fuel cell using second-order thermal analysis / wan ahmad najmi wan mohamed and rahim atan
publisher Faculty of Mechanical Engineering (FKM) and UiTM Press
publishDate 2013
url http://ir.uitm.edu.my/id/eprint/17580/
http://ir.uitm.edu.my/id/eprint/17580/1/AJ_WAN%20AHMAD%20NAJMI%20WAN%20MOHAMED%20JME%2013.pdf
first_indexed 2023-09-18T22:58:37Z
last_indexed 2023-09-18T22:58:37Z
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