Lang Cai, Jun Zhang, Caizhi Zhang, Jiaming Zhou, Tao Zeng, Fengyan Yi, Donghai Hu, Xiaosong Zhang
{"title":"强化传质流场对高温质子交换膜燃料电池性能改善的数值研究","authors":"Lang Cai, Jun Zhang, Caizhi Zhang, Jiaming Zhou, Tao Zeng, Fengyan Yi, Donghai Hu, Xiaosong Zhang","doi":"10.1002/fuce.202200131","DOIUrl":null,"url":null,"abstract":"<p>The enhanced mass transfer flow fields have been proven to be an effective measure to improve the cell performance of low-temperature proton exchange membrane fuel cells, yet little research has been done for high-temperature proton exchange membrane fuel cells (HT-PEMFC). In this work, three types of cathode-enhanced mass transfer flow fields (tapered, staggered-blocked, and blocked) are designed. The effects of various flow fields on the reactant delivery, current density distribution uniformity, and net power output of HT-PEMFC are quantitatively investigated and compared. It is found that the three enhanced mass transfer flow fields can effectively increase the performance of HT-PEMFC by transforming the traditional diffusion into a combination of diffusion and forced convection. In the sight of the superior performance and lower flow resistance, the tapered flow field is thought to be the optimal candidate for HT-PEMFC among the four flow fields, with a 12.21% net power increment and 5.32% current density distribution uniformity improvement at 1.4 A/cm<sup>2</sup> compared to the conventional flow field. These results support further performance enhancements and applications of HT-PEMFC.</p>","PeriodicalId":91482,"journal":{"name":"","volume":"23 3","pages":"251-263"},"PeriodicalIF":0.0,"publicationDate":"2023-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Numerical investigation of enhanced mass transfer flow field on performance improvement of high-temperature proton exchange membrane fuel cell\",\"authors\":\"Lang Cai, Jun Zhang, Caizhi Zhang, Jiaming Zhou, Tao Zeng, Fengyan Yi, Donghai Hu, Xiaosong Zhang\",\"doi\":\"10.1002/fuce.202200131\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The enhanced mass transfer flow fields have been proven to be an effective measure to improve the cell performance of low-temperature proton exchange membrane fuel cells, yet little research has been done for high-temperature proton exchange membrane fuel cells (HT-PEMFC). In this work, three types of cathode-enhanced mass transfer flow fields (tapered, staggered-blocked, and blocked) are designed. The effects of various flow fields on the reactant delivery, current density distribution uniformity, and net power output of HT-PEMFC are quantitatively investigated and compared. It is found that the three enhanced mass transfer flow fields can effectively increase the performance of HT-PEMFC by transforming the traditional diffusion into a combination of diffusion and forced convection. In the sight of the superior performance and lower flow resistance, the tapered flow field is thought to be the optimal candidate for HT-PEMFC among the four flow fields, with a 12.21% net power increment and 5.32% current density distribution uniformity improvement at 1.4 A/cm<sup>2</sup> compared to the conventional flow field. These results support further performance enhancements and applications of HT-PEMFC.</p>\",\"PeriodicalId\":91482,\"journal\":{\"name\":\"\",\"volume\":\"23 3\",\"pages\":\"251-263\"},\"PeriodicalIF\":0.0,\"publicationDate\":\"2023-05-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/fuce.202200131\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/fuce.202200131","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Numerical investigation of enhanced mass transfer flow field on performance improvement of high-temperature proton exchange membrane fuel cell
The enhanced mass transfer flow fields have been proven to be an effective measure to improve the cell performance of low-temperature proton exchange membrane fuel cells, yet little research has been done for high-temperature proton exchange membrane fuel cells (HT-PEMFC). In this work, three types of cathode-enhanced mass transfer flow fields (tapered, staggered-blocked, and blocked) are designed. The effects of various flow fields on the reactant delivery, current density distribution uniformity, and net power output of HT-PEMFC are quantitatively investigated and compared. It is found that the three enhanced mass transfer flow fields can effectively increase the performance of HT-PEMFC by transforming the traditional diffusion into a combination of diffusion and forced convection. In the sight of the superior performance and lower flow resistance, the tapered flow field is thought to be the optimal candidate for HT-PEMFC among the four flow fields, with a 12.21% net power increment and 5.32% current density distribution uniformity improvement at 1.4 A/cm2 compared to the conventional flow field. These results support further performance enhancements and applications of HT-PEMFC.