首页> 外文OA文献 >2D CFD modeling of ammonia fueled solid oxide fuel cells with proton conducting electrolyte
【2h】

2D CFD modeling of ammonia fueled solid oxide fuel cells with proton conducting electrolyte

机译:具有质子传导电解质的氨燃料固体氧化物燃料电池的二维CFD建模

摘要

The use of ammonia as a fuel for solid oxide fuel cells (SOFCs) is a promising way for clean power generation. In this study, a 2D model is built to investigate the coupled transport and chemical/electrochemical reactions in a planar SOFC with proton conducting electrolyte (SOFC-H). The model consists of an electrochemical model relating the current density-voltage characteristics and a 2D computational fluid dynamics (CFD) model simulating the heat and mass transfer phenomena. The conservation laws for mass, momentum, energy and species are discretized and solved with the finite volume method (FVM). The coupling of pressure and velocity is treated with SIMPLEC algorithm. Simulations are conducted to study the distributions of current density, electrolyte Nernst potential, rate of ammonia thermal cracking and gas composition in the SOFC. The effects of operating potential and temperature on the rate of chemical/electrochemical reactions and the electric output of ammonia fueled SOFC-H are examined.
机译:将氨用作固体氧化物燃料电池(SOFC)的燃料是清洁发电的一种有前途的方法。在这项研究中,建立了二维模型来研究质子传导电解质(SOFC-H)在平面SOFC中的耦合传输和化学/电化学反应。该模型由与电流密度-电压特性相关的电化学模型和模拟传热和传质现象的2D计算流体动力学(CFD)模型组成。质量,动量,能量和物种的守恒律被离散化,并通过有限体积法(FVM)求解。用SIMPLEC算法处理压力和速度的耦合。进行模拟以研究SOFC中的电流密度,电解质能斯特势,氨热裂速率和气体成分的分布。研究了工作电势和温度对化学/电化学反应速率和以氨为燃料的SOFC-H的电输出的影响。

著录项

  • 作者

    Ni M;

  • 作者单位
  • 年度 2010
  • 总页数
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类

相似文献

  • 外文文献
  • 中文文献
  • 专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号