• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied Energy >Mechanical equilibrium operation integrated modelling of recuperative solid oxide fuel cell - gas turbine hybrid systems: Design conditions and off-design analysis
【24h】

Mechanical equilibrium operation integrated modelling of recuperative solid oxide fuel cell - gas turbine hybrid systems: Design conditions and off-design analysis

机译：恢复固体氧化物燃料电池 - 燃气轮机混合系统的机械平衡运算综合建模：设计条件与非设计分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A novel model integrating mechanical equilibrium operation, electrochemical reactions and other thermodynamic processes has been built in this research to gain energetic and operational insights into recuperative solid oxide fuel cell - gas turbine hybrid systems. Determination mechanism for equilibrium running is proposed for both design stage analysis and off-design operation through reanalysis of classical speed and flow compatibility requirements. The coupling with solid oxide fuel cells and inclusion of a recuperator substantively introduces several independent variables to the related equation, while the number of independent parameters decreases in modelling when matching issues of turbomachinery are taken into account. Compared to simple hybridization, there are increasingly complex mutual influence and constraints between upstream and downstream parameters that are linked by the heat recovery process. Quantitative analysis of factors in turbine design shows 14-16% higher system efficiency with component pressure losses taken into consideration. When the turbine is appropriately designed, an electric efficiency of 68% can be achieved with recuperator effectiveness of 0.9. Results also highlight the significantly expanded operating ranges of turbomachinery under lower recuperator effectiveness of 0.8 as compensation for a 3% lower electrical efficiency at design conditions. A performance map for the proposed system is developed based on off-design operation analysis with stable running state ensured throughout.
机译：这项研究中建立了一种新型模型，其集成了机械平衡操作，电化学反应和其他热力学过程，以获得精力充沛，并在恢复固体氧化物燃料电池 - 燃气涡轮机混合系统中的能力和操作见解。通过分析经典速度和流量兼容性要求，提出了用于平衡运行的测定机制。与固体氧化物燃料电池的耦合和倒置器的夹杂物实质地将若干独立变量引入相关方程，而当考虑涡轮机械的匹配问题时，独立参数的数量降低。与简单的杂交相比，通过热回收过程连接的上游和下游参数之间存在越来越复杂的相互影响和约束。涡轮机设计中因子的定量分析显示了14-16％的系统效率高，考虑了部件压力损失。当涡轮机被适当设计时，可以通过恢复器效果0.9来实现68％的电效率。结果还突出了0.8较低恢复器效果下的涡轮机械的显着膨胀的操作范围，因为在设计条件下的电气效率降低了3％的补偿。所提出的系统的性能图是基于在整个稳定运行状态的非设计操作分析开发的。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

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