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首页> 外文期刊>Journal of power sources >Performance study of a solid oxide fuel cell and gas turbine hybrid system designed for methane operating with non-designed fuels
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Performance study of a solid oxide fuel cell and gas turbine hybrid system designed for methane operating with non-designed fuels

机译：专为甲烷与非设计燃料一起运行而设计的固体氧化物燃料电池和燃气轮机混合系统的性能研究

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摘要

This paper presents an analysis of the fuel flexibility of a methane-based solid oxide fuel cell-gas turbine (SOFC-GT) hybrid system. The simulation models of the system are mathematically defined. Special attention is paid to the development of an SOFC thermodynamic model that allows for the calculation of radial temperature gradients. Based on the simulation model, the new design point of system for new fuels is defined first; the steady-state performance of the system fed by different fuels is then discussed. When the hybrid system operates with hydrogen, the net power output at the new design point will decrease to 70% of the methane, while the design net efficiency will decrease to 55%. Similar to hydrogen, the net output power of the ethanol-fueled system will decrease to 88% of the methane value due to the lower cooling effect of steam reforming. However, the net efficiency can remain at 61% at high level due to increased heat recuperation from exhaust gas. To increase the power output of the hybrid system operating with non-design fuels without changing the system configuration, three different measures are introduced and investigated in this paper. The introduced measures can increase the system net power output operating with hydrogen to 94% of the original value at the cost of a lower efficiency of 45%.
机译：本文介绍了基于甲烷的固体氧化物燃料电池-燃气轮机（SOFC-GT）混合系统的燃料灵活性分析。该系统的仿真模型是数学定义的。要特别关注SOFC热力学模型的开发，该模型可以计算径向温度梯度。基于仿真模型，首先定义了新燃料系统的新设计要点。然后讨论了由不同燃料供给的系统的稳态性能。当混合动力系统使用氢气运行时，新设计点的净功率输出将降低至甲烷的70％，而设计净效率将降低至55％。与氢相似，由于蒸汽重整的冷却效果较低，乙醇燃料系统的净输出功率将降低至甲烷值的88％。但是，由于增加了废气的热量回收，净效率可以保持在61％的高水平。为了在不更改系统配置的情况下增加使用非设计燃料的混合动力系统的功率输出，本文引入了三种不同的措施并进行了研究。引入的措施可以将使用氢气运行的系统净功率输出提高到原始值的94％，但效率降低了45％。

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  • 来源
    《Journal of power sources》 |2011年第8期|p.3824-3835|共12页
  • 作者

    Yang Li; Yiwu Weng;

  • 作者单位

    School of Mechanical Engineering. Key Laboratory for Power Machinery and Engineering of Ministry of Education. Shanghai Jiao Tong University,800 Dong Chuan Rd., Shanghai 200240, China;

    School of Mechanical Engineering. Key Laboratory for Power Machinery and Engineering of Ministry of Education. Shanghai Jiao Tong University,800 Dong Chuan Rd., Shanghai 200240, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    solid oxide fuel cell; gas turbine; hybrid system; ethanol; hydrogen; methane;

    机译：固体氧化物燃料电池燃气轮机;混合动力系统乙醇氢;甲烷;

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