Abstract
Proton Exchange Membrane (PEM) fuel cell performance may be improved by application of additional magnetic fields. In this work, one square permanent magnet, made of either 16 combination cylinder magnets with homopolarity or 16 combination cylinder magnets with heteropolarity, was exerted on the fuel cell surface to produce additional magnetic field affecting PEM fuel cell performance. The influences of magnetic field status (rotating, static and none) on polarization and power density curves measured in a PEM fuel cell were investigated. The results verified the benefit of magnetic field, proving that the magnetic field distribution could improve the fuel cell output. Especially, the rotating combination magnet with heteropolarity enlarged the power density by 21.27%, which has advantage to the static magnetic field of 11.70% enhancement. Finally, the rotating speed was related to the fuel cell output power. High rotating speed was beneficial to the performance improvement, and the maximum power density was obtained at 30 r·min-1. However, the performance became worse upon further acceleration.
Graphical Abstract
Keywords
PEM fuel cell, rotating magnetic field, rotating speed, performance
Publication Date
2018-04-28
Online Available Date
2018-01-30
Revised Date
2017-01-16
Received Date
2016-08-22
Recommended Citation
Mao-liang WU, En-ze WANG, Guang-de PAN, Zhong-jun LIU, Fei XIE.
Effects of Rotating Magnetic Fields on PEM Fuel Cell Performance[J]. Journal of Electrochemistry,
2018
,
24(2): 160815.
DOI: 10.13208/j.electrochem.160815
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol24/iss2/15
Included in
Catalysis and Reaction Engineering Commons, Engineering Science and Materials Commons, Materials Chemistry Commons, Materials Science and Engineering Commons, Physical Chemistry Commons, Power and Energy Commons
