Lattice Boltzmann Method Study on Liquid Water Dynamic inside Gas Diffusion Layer with Porosity Distribution
The gas diffusion layer (GDL) plays an important role in the mass transfer process during proton exchange membrane fuel cell (PEMFC) operation. However, the GDL porosity distribution, which has often been ignored in the previous works, influences the mass transfer significantly. In this paper, a 2D...
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| Format: | Article |
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MDPI AG
2021-08-01
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| Series: | World Electric Vehicle Journal |
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| Online Access: | https://www.mdpi.com/2032-6653/12/3/133 |
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| author | Mingyang Yang Aimin Du Jinling Liu Sichuan Xu |
| author_facet | Mingyang Yang Aimin Du Jinling Liu Sichuan Xu |
| author_sort | Mingyang Yang |
| collection | DOAJ |
| description | The gas diffusion layer (GDL) plays an important role in the mass transfer process during proton exchange membrane fuel cell (PEMFC) operation. However, the GDL porosity distribution, which has often been ignored in the previous works, influences the mass transfer significantly. In this paper, a 2D lattice Boltzmann method model is employed to simulate the liquid water transport process in the real GDL (considered porosity distribution) and the ideal GDL (ignore porous distribution), respectively. It was found that the liquid water transport in the real GDL will be significantly affected by the local low porosity area. In the real GDL, a liquid water saturation threshold can be noticed when the contact angle is about 118°. The GDL porosity distribution shows a stronger influence on liquid dynamic than hydrophobicity, which needs to be considered in future GDL modelling and design. |
| first_indexed | 2024-03-10T07:08:03Z |
| format | Article |
| id | doaj.art-c9134aa5e5dc4386aa52a6817b5aeba8 |
| institution | Directory Open Access Journal |
| issn | 2032-6653 |
| language | English |
| last_indexed | 2024-03-10T07:08:03Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | World Electric Vehicle Journal |
| spelling | doaj.art-c9134aa5e5dc4386aa52a6817b5aeba82023-11-22T15:42:29ZengMDPI AGWorld Electric Vehicle Journal2032-66532021-08-0112313310.3390/wevj12030133Lattice Boltzmann Method Study on Liquid Water Dynamic inside Gas Diffusion Layer with Porosity DistributionMingyang Yang0Aimin Du1Jinling Liu2Sichuan Xu3School of Automotive Studies, Tongji University, Cao’an Road, No. 4800, Shanghai 201804, ChinaSchool of Automotive Studies, Tongji University, Cao’an Road, No. 4800, Shanghai 201804, ChinaSchool of Automotive Studies, Tongji University, Cao’an Road, No. 4800, Shanghai 201804, ChinaSchool of Automotive Studies, Tongji University, Cao’an Road, No. 4800, Shanghai 201804, ChinaThe gas diffusion layer (GDL) plays an important role in the mass transfer process during proton exchange membrane fuel cell (PEMFC) operation. However, the GDL porosity distribution, which has often been ignored in the previous works, influences the mass transfer significantly. In this paper, a 2D lattice Boltzmann method model is employed to simulate the liquid water transport process in the real GDL (considered porosity distribution) and the ideal GDL (ignore porous distribution), respectively. It was found that the liquid water transport in the real GDL will be significantly affected by the local low porosity area. In the real GDL, a liquid water saturation threshold can be noticed when the contact angle is about 118°. The GDL porosity distribution shows a stronger influence on liquid dynamic than hydrophobicity, which needs to be considered in future GDL modelling and design.https://www.mdpi.com/2032-6653/12/3/133proton exchange membrane fuel cell (PEMFC)liquid water saturationlattice Boltzmann methodgas diffusion layer (GDL) |
| spellingShingle | Mingyang Yang Aimin Du Jinling Liu Sichuan Xu Lattice Boltzmann Method Study on Liquid Water Dynamic inside Gas Diffusion Layer with Porosity Distribution World Electric Vehicle Journal proton exchange membrane fuel cell (PEMFC) liquid water saturation lattice Boltzmann method gas diffusion layer (GDL) |
| title | Lattice Boltzmann Method Study on Liquid Water Dynamic inside Gas Diffusion Layer with Porosity Distribution |
| title_full | Lattice Boltzmann Method Study on Liquid Water Dynamic inside Gas Diffusion Layer with Porosity Distribution |
| title_fullStr | Lattice Boltzmann Method Study on Liquid Water Dynamic inside Gas Diffusion Layer with Porosity Distribution |
| title_full_unstemmed | Lattice Boltzmann Method Study on Liquid Water Dynamic inside Gas Diffusion Layer with Porosity Distribution |
| title_short | Lattice Boltzmann Method Study on Liquid Water Dynamic inside Gas Diffusion Layer with Porosity Distribution |
| title_sort | lattice boltzmann method study on liquid water dynamic inside gas diffusion layer with porosity distribution |
| topic | proton exchange membrane fuel cell (PEMFC) liquid water saturation lattice Boltzmann method gas diffusion layer (GDL) |
| url | https://www.mdpi.com/2032-6653/12/3/133 |
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