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Numerical analysis of the effect of charge transfer coefficient (CTC) on bubble evolution of polymer electrolyte membrane (PEM) electrolyzer / Alhassan Salami Tijani, Mohammad Amirul Akmal Mohd Najib and Nabilah Hanum Mustafa

There is a growing concern on the need to enhance the current density of alkaline electrolysis without compromising reduction in efficiency. During the operation of alkaline electrolyzers, a portion of the electrode surface is covered with cloud of bubbles. The bubbles increase ohmic resistance and...

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Main Authors: Tijani, Alhassan Salami, Mohd Najib, Mohammad Amirul Akmal, Mustafa, Nabilah Hanum
Format: Article
Language:English
Published: Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM) 2022
Subjects:
QD Chemistry
Online Access:https://ir.uitm.edu.my/id/eprint/84034/1/84034.pdf
https://doi.org/10.24191/jmeche.v11i1.23587
https://ir.uitm.edu.my/id/eprint/84034/
https://doi.org/10.24191/jmeche.v11i1.23587
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spelling my.uitm.ir.840342023-09-15T03:40:46Z https://ir.uitm.edu.my/id/eprint/84034/ Numerical analysis of the effect of charge transfer coefficient (CTC) on bubble evolution of polymer electrolyte membrane (PEM) electrolyzer / Alhassan Salami Tijani, Mohammad Amirul Akmal Mohd Najib and Nabilah Hanum Mustafa jmeche Tijani, Alhassan Salami Mohd Najib, Mohammad Amirul Akmal Mustafa, Nabilah Hanum QD Chemistry There is a growing concern on the need to enhance the current density of alkaline electrolysis without compromising reduction in efficiency. During the operation of alkaline electrolyzers, a portion of the electrode surface is covered with cloud of bubbles. The bubbles increase ohmic resistance and activation overvoltage of the electrolyte. This study aims to investigate the effect of charge transfer coefficient (CTC) on the voltage characteristics of PEM electrolyzer. Matlab was used to simulate the equations. The simulation result shows that CTC values at the anode electrode range between 0.807 and 1.035. Interestingly, at CTC of 0.5 and 0.2 for anode and cathode, the operating voltage at 1 A/cm2 was observed to be 2.0 V. Also at CTC of 2 and 0.5 for anode and cathode, respectively, there was a significant drop in operating voltage up to 1.62 V with a current density of 1 A/cm2, this accounts for about 27% reduction in operating voltage. Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM) 2022-11 Article PeerReviewed text en https://ir.uitm.edu.my/id/eprint/84034/1/84034.pdf Numerical analysis of the effect of charge transfer coefficient (CTC) on bubble evolution of polymer electrolyte membrane (PEM) electrolyzer / Alhassan Salami Tijani, Mohammad Amirul Akmal Mohd Najib and Nabilah Hanum Mustafa. (2022) Journal of Mechanical Engineering (JMechE) <https://ir.uitm.edu.my/view/publication/Journal_of_Mechanical_Engineering_=28JMechE=29/>, 11 (1): 4. pp. 81-94. ISSN 1823-5514 ; 2550-164X https://doi.org/10.24191/jmeche.v11i1.23587 https://doi.org/10.24191/jmeche.v11i1.23587
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic QD Chemistry
spellingShingle QD Chemistry
Tijani, Alhassan Salami
Mohd Najib, Mohammad Amirul Akmal
Mustafa, Nabilah Hanum
Numerical analysis of the effect of charge transfer coefficient (CTC) on bubble evolution of polymer electrolyte membrane (PEM) electrolyzer / Alhassan Salami Tijani, Mohammad Amirul Akmal Mohd Najib and Nabilah Hanum Mustafa
description There is a growing concern on the need to enhance the current density of alkaline electrolysis without compromising reduction in efficiency. During the operation of alkaline electrolyzers, a portion of the electrode surface is covered with cloud of bubbles. The bubbles increase ohmic resistance and activation overvoltage of the electrolyte. This study aims to investigate the effect of charge transfer coefficient (CTC) on the voltage characteristics of PEM electrolyzer. Matlab was used to simulate the equations. The simulation result shows that CTC values at the anode electrode range between 0.807 and 1.035. Interestingly, at CTC of 0.5 and 0.2 for anode and cathode, the operating voltage at 1 A/cm2 was observed to be 2.0 V. Also at CTC of 2 and 0.5 for anode and cathode, respectively, there was a significant drop in operating voltage up to 1.62 V with a current density of 1 A/cm2, this accounts for about 27% reduction in operating voltage.
format Article
author Tijani, Alhassan Salami
Mohd Najib, Mohammad Amirul Akmal
Mustafa, Nabilah Hanum
author_facet Tijani, Alhassan Salami
Mohd Najib, Mohammad Amirul Akmal
Mustafa, Nabilah Hanum
author_sort Tijani, Alhassan Salami
title Numerical analysis of the effect of charge transfer coefficient (CTC) on bubble evolution of polymer electrolyte membrane (PEM) electrolyzer / Alhassan Salami Tijani, Mohammad Amirul Akmal Mohd Najib and Nabilah Hanum Mustafa
title_short Numerical analysis of the effect of charge transfer coefficient (CTC) on bubble evolution of polymer electrolyte membrane (PEM) electrolyzer / Alhassan Salami Tijani, Mohammad Amirul Akmal Mohd Najib and Nabilah Hanum Mustafa
title_full Numerical analysis of the effect of charge transfer coefficient (CTC) on bubble evolution of polymer electrolyte membrane (PEM) electrolyzer / Alhassan Salami Tijani, Mohammad Amirul Akmal Mohd Najib and Nabilah Hanum Mustafa
title_fullStr Numerical analysis of the effect of charge transfer coefficient (CTC) on bubble evolution of polymer electrolyte membrane (PEM) electrolyzer / Alhassan Salami Tijani, Mohammad Amirul Akmal Mohd Najib and Nabilah Hanum Mustafa
title_full_unstemmed Numerical analysis of the effect of charge transfer coefficient (CTC) on bubble evolution of polymer electrolyte membrane (PEM) electrolyzer / Alhassan Salami Tijani, Mohammad Amirul Akmal Mohd Najib and Nabilah Hanum Mustafa
title_sort numerical analysis of the effect of charge transfer coefficient (ctc) on bubble evolution of polymer electrolyte membrane (pem) electrolyzer / alhassan salami tijani, mohammad amirul akmal mohd najib and nabilah hanum mustafa
publisher Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM)
publishDate 2022
url https://ir.uitm.edu.my/id/eprint/84034/1/84034.pdf
https://doi.org/10.24191/jmeche.v11i1.23587
https://ir.uitm.edu.my/id/eprint/84034/
https://doi.org/10.24191/jmeche.v11i1.23587
_version_ 1778165986917089280
score 13.211869

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