Improving PEM water electrolyser’s performance by magnetic field application

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Improving PEM water electrolyser’s performance by magnetic field application. / Kaya, Mehmet; Demir, Nesrin; Rees, Neil; El-Kharouf, Ahmad.

In: Applied Energy, Vol. 264, 114721, 15.04.2020.

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@article{67623b7db81143cf867078623cce8066,
title = "Improving PEM water electrolyser{\textquoteright}s performance by magnetic field application",
abstract = "This paper demonstrates the significant and positive effect of applying a magnetic field on the performance of Proton Exchange Membrane Water Electrolysers (PEMWE). A magnetizer and a transparent PEMWE cell are used to observe the effect of the magnetic field at variable water flow rates on the PEMWE performance. The presence of the magnetic field introduces Lorentz force which results in a significant improvement in the electrolyser performance. The magnetic flux density is varied between 0 T and 0.5 T, while the water flow rate is varied from 100 ml min-1 to 300 ml min-1 to study the effect and relationship between the two parameters and the performance of the PEMWE. Under a 0.5 T magnetic field and 300 ml min-1 flow rate, a 33% increase in the cell performance is achieved compared to the conventional operation at the same flow rate. The positive effect is explained by the introduction of Lorentz force from the magnetic field to the operating PEMWE. The improvement here is due to the relaxation and pumping effect of the magnetic field on the electrode surface which results in enhancing oxygen bubbles removal and lowering mass transport polarisation. Moreover, the enhanced oxygen bubbles removal is expected to increase the lifetime of the electrolyser as a result of the reduced contact between the produced oxygen and the anode materials",
keywords = "PEM water electrolyser, water flow rate, magnetic field, Lorentz force, Magnetohydrodynamic, Water flow rate, Magnetic field",
author = "Mehmet Kaya and Nesrin Demir and Neil Rees and Ahmad El-Kharouf",
year = "2020",
month = apr,
day = "15",
doi = "10.1016/j.apenergy.2020.114721",
language = "English",
volume = "264",
journal = "Applied Energy",
issn = "0306-2619",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Improving PEM water electrolyser’s performance by magnetic field application

AU - Kaya, Mehmet

AU - Demir, Nesrin

AU - Rees, Neil

AU - El-Kharouf, Ahmad

PY - 2020/4/15

Y1 - 2020/4/15

N2 - This paper demonstrates the significant and positive effect of applying a magnetic field on the performance of Proton Exchange Membrane Water Electrolysers (PEMWE). A magnetizer and a transparent PEMWE cell are used to observe the effect of the magnetic field at variable water flow rates on the PEMWE performance. The presence of the magnetic field introduces Lorentz force which results in a significant improvement in the electrolyser performance. The magnetic flux density is varied between 0 T and 0.5 T, while the water flow rate is varied from 100 ml min-1 to 300 ml min-1 to study the effect and relationship between the two parameters and the performance of the PEMWE. Under a 0.5 T magnetic field and 300 ml min-1 flow rate, a 33% increase in the cell performance is achieved compared to the conventional operation at the same flow rate. The positive effect is explained by the introduction of Lorentz force from the magnetic field to the operating PEMWE. The improvement here is due to the relaxation and pumping effect of the magnetic field on the electrode surface which results in enhancing oxygen bubbles removal and lowering mass transport polarisation. Moreover, the enhanced oxygen bubbles removal is expected to increase the lifetime of the electrolyser as a result of the reduced contact between the produced oxygen and the anode materials

AB - This paper demonstrates the significant and positive effect of applying a magnetic field on the performance of Proton Exchange Membrane Water Electrolysers (PEMWE). A magnetizer and a transparent PEMWE cell are used to observe the effect of the magnetic field at variable water flow rates on the PEMWE performance. The presence of the magnetic field introduces Lorentz force which results in a significant improvement in the electrolyser performance. The magnetic flux density is varied between 0 T and 0.5 T, while the water flow rate is varied from 100 ml min-1 to 300 ml min-1 to study the effect and relationship between the two parameters and the performance of the PEMWE. Under a 0.5 T magnetic field and 300 ml min-1 flow rate, a 33% increase in the cell performance is achieved compared to the conventional operation at the same flow rate. The positive effect is explained by the introduction of Lorentz force from the magnetic field to the operating PEMWE. The improvement here is due to the relaxation and pumping effect of the magnetic field on the electrode surface which results in enhancing oxygen bubbles removal and lowering mass transport polarisation. Moreover, the enhanced oxygen bubbles removal is expected to increase the lifetime of the electrolyser as a result of the reduced contact between the produced oxygen and the anode materials

KW - PEM water electrolyser

KW - water flow rate

KW - magnetic field

KW - Lorentz force

KW - Magnetohydrodynamic

KW - Water flow rate

KW - Magnetic field

UR - http://www.scopus.com/inward/record.url?scp=85080037504&partnerID=8YFLogxK

U2 - 10.1016/j.apenergy.2020.114721

DO - 10.1016/j.apenergy.2020.114721

M3 - Article

VL - 264

JO - Applied Energy

JF - Applied Energy

SN - 0306-2619

M1 - 114721

ER -