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首页> 外文期刊>Energy Conversion & Management >Methanol to power through high-efficiency hybrid fuel cell system: Thermodynamic, thermo-economic, and techno-economic (3T) analyses in Northwest China
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Methanol to power through high-efficiency hybrid fuel cell system: Thermodynamic, thermo-economic, and techno-economic (3T) analyses in Northwest China

机译：甲醇通过高效杂交燃料电池系统供电：中国西北部的热力学，热经济和技术经济（3T）分析

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摘要

Advanced efficient energy conversion technology using clean alternative fuel contributes to the alleviation of the energy crisis and environmental deterioration. In this situation, a novel methanol utilization technology for power generation based on hybrid fuel cell system is proposed in this work. The hybrid system consists of a solid oxide fuel cell (SOFC), a gas processing unit (GP) and a proton exchange membrane fuel cell (PEMFC). Thermodynamic analysis of the system shows that the energy conversion efficiency and exergy efficiency are both higher than the previously reported standalone or hybrid energy systems using methanol as fuel, which are 66.2% and 54.2% respectively. Besides, no recirculation ratio of anode off-gas and moderate fuel utilization of about 0.5 are suggested for the SOFC component to balance the power distribution and improve the efficiency. Afterwards, this hybrid fuel cell system is also investigated from thermo-economic and techno-economic perspectives. Take Northwest China as a case, the 1 MWe methanol-fed power plant has a specific electric energy cost of 0.5594 CNY/kWh, much lower than the methanol steam reforming-PEMFC power plant (2.4 CNY/kWh). At the same time, the sensitivity analyses reveal that the cost of the hybrid power system is not sensitive to the market price fluctuation. With financial subsidies for existing renewable power plants, the payback period can be shortened to 1.4 year and the annual return on investment is about 3.58%. These results reveal that this two stage fuel cell hybrid system is a kind of efficient and economically methanol to power conversion technology, especially for small power scale.
机译：使用清洁替代燃料的先进的高效能量转换技术有助于减轻能源危机和环境恶化。在这种情况下，在这项工作中提出了一种基于混合燃料电池系统的发电的新型甲醇利用技术。混合系统由固体氧化物燃料电池（SOFC），气体处理单元（GP）和质子交换膜燃料电池（PEMFC）组成。系统的热力学分析表明，能量转换效率和高效效率高于先前报告的独立或使用甲醇作为燃料的杂种能量系统，分别为66.2％和54.2％。此外，对于SOFC组件，建议没有阳极废气和中等燃料利用的再循环比，以平衡功率分布并提高效率。之后，还从热经济和技术经济角度调查了这种混合燃料电池系统。以西北地区为例，1 MWE的甲醇喂养电厂具有0.5594英镑/千瓦时的特定电能成本，远低于甲醇蒸汽重整 - PEMFC发电厂（2.4 CNY / KWH）。同时，敏感性分析表明，混合动力系统的成本对市场价格波动不敏感。根据现有可再生电厂的财务补贴，回收期可缩短至1.4年，年度投资回报率约为3.58％。这些结果表明，这两个阶段燃料电池混合系统是一种高效且经济上甲醇的电力转换技术，特别是对于小型电力量表。

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  • 来源
    《Energy Conversion & Management》 |2021年第3期|113899.1-113899.17|共17页
  • 作者

    Wu Zhen; Zhu Pengfei; Yao Jing; Kurko Sandra; Ren Jianwei; Tan Peng; Xu Haoran; Zhang Zaoxiao; Ni Meng;

  • 作者单位

    Xi An Jiao Tong Univ Sch Chem Engn & Technol Shaanxi Key Lab Energy Chem Proc Intensificat Xian Peoples R China|Hong Kong Polytech Univ Dept Bldg & Real Estate Bldg Energy Res Grp Hung Hom Kowloon Hong Kong Peoples R China;

    Xi An Jiao Tong Univ Sch Chem Engn & Technol Shaanxi Key Lab Energy Chem Proc Intensificat Xian Peoples R China;

    Xi An Jiao Tong Univ Sch Chem Engn & Technol Shaanxi Key Lab Energy Chem Proc Intensificat Xian Peoples R China;

    Univ Belgrade Vinca Inst Nucl Sci Ctr Excellence Hydrogen & Renewable Energy Belgrade 11351 Serbia;

    Univ Johannesburg Fac Engn & Built Environm FEBE Dept Mech Engn Sci Johannesburg South Africa;

    Univ Sci & Technol China Dept Thermal Sci & Energy Engn Hefei Peoples R China;

    Loughborough Univ Dept Chem Engn Loughborough Leics England;

    Xi An Jiao Tong Univ Sch Chem Engn & Technol Shaanxi Key Lab Energy Chem Proc Intensificat Xian Peoples R China|Xi An Jiao Tong Univ State Key Lab Multiphase Flow Power Engn Xian Peoples R China;

    Hong Kong Polytech Univ Dept Bldg & Real Estate Bldg Energy Res Grp Hung Hom Kowloon Hong Kong Peoples R China|Hong Kong Polytech Univ Res Inst Sustainable Urban Dev RISUD Environm Energy Res Grp Hong Kong Peoples R China;

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

    Fuel cell; Hybrid power system; Methanol fuel; High efficiency; Performance evaluation;

    机译：燃料电池;混合动力系统;甲醇燃料;高效率;绩效评估;

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