{"title":"采用新型陷阱设计互连增强传质的固体氧化物燃料电池热-电-机械行为的数值研究","authors":"Aimen Abdellah Bouaiss, Mohamed Souri Mimoune, Djafar Chabane, Nadhir Lebaal, Oussama Bouaiss, Lotfi Alloui","doi":"10.1007/s10008-024-06144-6","DOIUrl":null,"url":null,"abstract":"<div><p>Recent efforts in solid oxide fuel cell (SOFC) research have prioritized performance optimization by addressing reported issues and improving fundamental mechanisms. This paper opens the doors to the enhancement of SOFC performance through traps-designed interconnects, aimed at enhancing mass transfer and electrochemical conversion efficiency. A numerical investigation is conducted to analyze the effects of traps, including their number and three-dimensional size (length, width, and height), on SOFC behavior. Results show that the traps design effectively addresses the widely reported issue of poor reactants’ distribution in the under-rib areas. Additionally, increasing traps’ size enhances SOFC performance, with traps length identified as the primary contributor to improvement. However, variations in traps width exhibited inconsistencies in its impact. As a result, these parameters were carefully optimized for the optimal performance. The optimal configuration for a three-traps design is determined to be 12 mm in length, 0.3 mm in width, and 1 mm in height, resulting in a 14% increase in power output compared to conventional design. A thermo-mechanical analysis is also conducted, revealing that the electrical performance comes as a compromise with the mechanical stability of the cell. Specifically, an increase in thermal stresses around traps corners is observed, resulting in a significant rise in the probability of electrolyte failure probability. The authors suggest incorporating support layers or further optimizing trap shapes with mechanical stresses as a study constraint to enhance SOFC durability in response to these findings.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 5","pages":"1907 - 1927"},"PeriodicalIF":2.6000,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Numerical investigation of thermo-electro-mechanical behavior in solid oxide fuel cells with novel traps design interconnects for enhanced mass transfer\",\"authors\":\"Aimen Abdellah Bouaiss, Mohamed Souri Mimoune, Djafar Chabane, Nadhir Lebaal, Oussama Bouaiss, Lotfi Alloui\",\"doi\":\"10.1007/s10008-024-06144-6\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Recent efforts in solid oxide fuel cell (SOFC) research have prioritized performance optimization by addressing reported issues and improving fundamental mechanisms. This paper opens the doors to the enhancement of SOFC performance through traps-designed interconnects, aimed at enhancing mass transfer and electrochemical conversion efficiency. A numerical investigation is conducted to analyze the effects of traps, including their number and three-dimensional size (length, width, and height), on SOFC behavior. Results show that the traps design effectively addresses the widely reported issue of poor reactants’ distribution in the under-rib areas. Additionally, increasing traps’ size enhances SOFC performance, with traps length identified as the primary contributor to improvement. However, variations in traps width exhibited inconsistencies in its impact. As a result, these parameters were carefully optimized for the optimal performance. The optimal configuration for a three-traps design is determined to be 12 mm in length, 0.3 mm in width, and 1 mm in height, resulting in a 14% increase in power output compared to conventional design. A thermo-mechanical analysis is also conducted, revealing that the electrical performance comes as a compromise with the mechanical stability of the cell. Specifically, an increase in thermal stresses around traps corners is observed, resulting in a significant rise in the probability of electrolyte failure probability. The authors suggest incorporating support layers or further optimizing trap shapes with mechanical stresses as a study constraint to enhance SOFC durability in response to these findings.</p></div>\",\"PeriodicalId\":665,\"journal\":{\"name\":\"Journal of Solid State Electrochemistry\",\"volume\":\"29 5\",\"pages\":\"1907 - 1927\"},\"PeriodicalIF\":2.6000,\"publicationDate\":\"2024-11-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Solid State Electrochemistry\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10008-024-06144-6\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ELECTROCHEMISTRY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Solid State Electrochemistry","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10008-024-06144-6","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
Numerical investigation of thermo-electro-mechanical behavior in solid oxide fuel cells with novel traps design interconnects for enhanced mass transfer
Recent efforts in solid oxide fuel cell (SOFC) research have prioritized performance optimization by addressing reported issues and improving fundamental mechanisms. This paper opens the doors to the enhancement of SOFC performance through traps-designed interconnects, aimed at enhancing mass transfer and electrochemical conversion efficiency. A numerical investigation is conducted to analyze the effects of traps, including their number and three-dimensional size (length, width, and height), on SOFC behavior. Results show that the traps design effectively addresses the widely reported issue of poor reactants’ distribution in the under-rib areas. Additionally, increasing traps’ size enhances SOFC performance, with traps length identified as the primary contributor to improvement. However, variations in traps width exhibited inconsistencies in its impact. As a result, these parameters were carefully optimized for the optimal performance. The optimal configuration for a three-traps design is determined to be 12 mm in length, 0.3 mm in width, and 1 mm in height, resulting in a 14% increase in power output compared to conventional design. A thermo-mechanical analysis is also conducted, revealing that the electrical performance comes as a compromise with the mechanical stability of the cell. Specifically, an increase in thermal stresses around traps corners is observed, resulting in a significant rise in the probability of electrolyte failure probability. The authors suggest incorporating support layers or further optimizing trap shapes with mechanical stresses as a study constraint to enhance SOFC durability in response to these findings.
期刊介绍:
The Journal of Solid State Electrochemistry is devoted to all aspects of solid-state chemistry and solid-state physics in electrochemistry.
The Journal of Solid State Electrochemistry publishes papers on all aspects of electrochemistry of solid compounds, including experimental and theoretical, basic and applied work. It equally publishes papers on the thermodynamics and kinetics of electrochemical reactions if at least one actively participating phase is solid. Also of interest are articles on the transport of ions and electrons in solids whenever these processes are relevant to electrochemical reactions and on the use of solid-state electrochemical reactions in the analysis of solids and their surfaces.
The journal covers solid-state electrochemistry and focusses on the following fields: mechanisms of solid-state electrochemical reactions, semiconductor electrochemistry, electrochemical batteries, accumulators and fuel cells, electrochemical mineral leaching, galvanic metal plating, electrochemical potential memory devices, solid-state electrochemical sensors, ion and electron transport in solid materials and polymers, electrocatalysis, photoelectrochemistry, corrosion of solid materials, solid-state electroanalysis, electrochemical machining of materials, electrochromism and electrochromic devices, new electrochemical solid-state synthesis.
The Journal of Solid State Electrochemistry makes the professional in research and industry aware of this swift progress and its importance for future developments and success in the above-mentioned fields.