{"title":"A comparative study on capillary pressure correlations of water transport in PEMFC gas diffusion layer","authors":"Yujie Ding, Liangfei Xu, Yangbin Shao, Zunyan Hu, Jianqiu Li, Tong Shen, M. Ouyang","doi":"10.1109/CVCI51460.2020.9338586","DOIUrl":null,"url":null,"abstract":"This paper numerically compares the existing capillary pressure correlations of gas diffusion layer with a three-dimensional PEMFC model. The cell performance and liquid water distributions are calculated with different pc-s correlations under the same conditions. The results indicate that the applicability of these correlations are not consistent. Polynomials with higher orders predict the polarization curve better. Exponential correlations tends to overestimate the capillary pressure and liquid water saturation. Therefore, the uniformity of oxygen concentration and fuel cell performance are underestimated.","PeriodicalId":119721,"journal":{"name":"2020 4th CAA International Conference on Vehicular Control and Intelligence (CVCI)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2020-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 4th CAA International Conference on Vehicular Control and Intelligence (CVCI)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CVCI51460.2020.9338586","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
This paper numerically compares the existing capillary pressure correlations of gas diffusion layer with a three-dimensional PEMFC model. The cell performance and liquid water distributions are calculated with different pc-s correlations under the same conditions. The results indicate that the applicability of these correlations are not consistent. Polynomials with higher orders predict the polarization curve better. Exponential correlations tends to overestimate the capillary pressure and liquid water saturation. Therefore, the uniformity of oxygen concentration and fuel cell performance are underestimated.