Effect of a ripple current on the efficiency of a PEM electrolyser

The aim of this study was to determine how the efficiency of a proton exchange membrane (PEM) electrolyser is affected by an electric ripple current and the different characteristics of the ripple current (frequency, amplitude and waveform). This paper presents the experimental method and measured r...

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Main Authors: Henning P.C. Buitendach, Rupert Gouws, Christiaan A. Martinson, Carel Minnaar, Dmitri Bessarabov
Format: Article
Language:English
Published: Elsevier 2021-06-01
Series:Results in Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2590123021000177
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author Henning P.C. Buitendach
Rupert Gouws
Christiaan A. Martinson
Carel Minnaar
Dmitri Bessarabov
author_facet Henning P.C. Buitendach
Rupert Gouws
Christiaan A. Martinson
Carel Minnaar
Dmitri Bessarabov
author_sort Henning P.C. Buitendach
collection DOAJ
description The aim of this study was to determine how the efficiency of a proton exchange membrane (PEM) electrolyser is affected by an electric ripple current and the different characteristics of the ripple current (frequency, amplitude and waveform). This paper presents the experimental method and measured results, used to analyse the effect of ripple currents at various frequencies, ripple factors and waveforms on the hydrogen production, power consumption and efficiency of a PEM electrolyser. An active laboratory-size PEM electrolysis system was used to investigate the impact of various ripple currents on the efficiency of the system. The results revealed that the average power consumption increases as the ripple factor increases and decreases as the frequency of the ripple increases, while the waveform of the applied current has no effect. Furthermore, the average hydrogen flow rate is unaffected by the ripple factor, frequency or waveform of the applied ripple current.
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spelling doaj.art-2bf39d25130b409d91918dcbcf3f1ce72022-12-21T18:50:55ZengElsevierResults in Engineering2590-12302021-06-0110100216Effect of a ripple current on the efficiency of a PEM electrolyserHenning P.C. Buitendach0Rupert Gouws1Christiaan A. Martinson2Carel Minnaar3Dmitri Bessarabov4School of Electrical, Electronic and Computer Engineering, North-West University, Potchefstroom, 2520, South Africa; Corresponding author.School of Electrical, Electronic and Computer Engineering, North-West University, Potchefstroom, 2520, South AfricaHySA Infrastructure Center of Competence, Faculty of Engineering, North-West University, Potchefstroom, 2520, South AfricaHySA Infrastructure Center of Competence, Faculty of Engineering, North-West University, Potchefstroom, 2520, South AfricaHySA Infrastructure Center of Competence, Faculty of Engineering, North-West University, Potchefstroom, 2520, South Africa; Corresponding author.The aim of this study was to determine how the efficiency of a proton exchange membrane (PEM) electrolyser is affected by an electric ripple current and the different characteristics of the ripple current (frequency, amplitude and waveform). This paper presents the experimental method and measured results, used to analyse the effect of ripple currents at various frequencies, ripple factors and waveforms on the hydrogen production, power consumption and efficiency of a PEM electrolyser. An active laboratory-size PEM electrolysis system was used to investigate the impact of various ripple currents on the efficiency of the system. The results revealed that the average power consumption increases as the ripple factor increases and decreases as the frequency of the ripple increases, while the waveform of the applied current has no effect. Furthermore, the average hydrogen flow rate is unaffected by the ripple factor, frequency or waveform of the applied ripple current.http://www.sciencedirect.com/science/article/pii/S2590123021000177Proton exchange membraneElectrolyzerRipple currentRipple factorEfficiency
spellingShingle Henning P.C. Buitendach
Rupert Gouws
Christiaan A. Martinson
Carel Minnaar
Dmitri Bessarabov
Effect of a ripple current on the efficiency of a PEM electrolyser
Results in Engineering
Proton exchange membrane
Electrolyzer
Ripple current
Ripple factor
Efficiency
title Effect of a ripple current on the efficiency of a PEM electrolyser
title_full Effect of a ripple current on the efficiency of a PEM electrolyser
title_fullStr Effect of a ripple current on the efficiency of a PEM electrolyser
title_full_unstemmed Effect of a ripple current on the efficiency of a PEM electrolyser
title_short Effect of a ripple current on the efficiency of a PEM electrolyser
title_sort effect of a ripple current on the efficiency of a pem electrolyser
topic Proton exchange membrane
Electrolyzer
Ripple current
Ripple factor
Efficiency
url http://www.sciencedirect.com/science/article/pii/S2590123021000177
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AT carelminnaar effectofaripplecurrentontheefficiencyofapemelectrolyser
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