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System-level energy efficiency is the greatest barrier to development of the hydrogen economy

机译：系统级能效是氢经济发展的最大障碍

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摘要

Current energy research investment policy in New Zealand is based on assumed benefits of transitioning to hydrogen as a transport fuel and as storage for electricity from renewable resources. The hydrogen economy concept, as set out in recent commissioned research investment policy advice documents, includes a range of hydrogen energy supply and consumption chains for transport and residential energy services. The benefits of research and development investments in these advice documents were not fully analyzed by cost or improvements in energy efficiency or green house gas emissions reduction. This paper sets out a straightforward method to quantify the system-level efficiency of these energy chains. The method was applied to transportation and stationary heat and power, with hydrogen generated from wind energy, natural gas and coal. The system-level efficiencies for the hydrogen chains were compared to direct use of conventionally generated electricity, and with internal combustion engines operating on gas- or coal-derived fuel. The hydrogen energy chains were shown to provide little or no system-level efficiency improvement over conventional technology. The current research investment policy is aimed at enabling a hydrogen economy without considering the dramatic loss of efficiency that would result from using this energy carrier.
机译：新西兰当前的能源研究投资政策基于假定的优势，即过渡为氢作为运输燃料和可再生资源的电能存储。最近委托的研究投资政策建议文件中阐明了氢经济概念，其中包括一系列用于运输和住宅能源服务的氢能源供应和消费链。这些建议文件中的研发投资收益并未通过成本，能源效率的提高或温室气体减排的方式得到充分分析。本文提出了一种简单的方法来量化这些能源链的系统级效率。该方法被应用于交通运输，固定热力和电力，其中利用风能，天然气和煤炭产生的氢气。氢链的系统级效率与直接使用常规发电的效率以及使用天然气或煤衍生燃料的内燃机进行了比较。氢能链显示出与常规技术相比几乎没有或没有提供系统级的效率改善。当前的研究投资政策旨在实现氢经济，而不考虑使用这种能源载体会导致效率的急剧下降。

著录项

  • 来源
    《Energy Policy》 |2009年第9期|3325-3335|共11页
  • 作者

    Shannon Page; Susan Krumdieck;

  • 作者单位

    Department of Mechanical Engineering, University of Canterbury, Christchurch, New Zealand;

    Department of Mechanical Engineering, University of Canterbury, Christchurch, New Zealand;

  • 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

    hydrogen economy; energy efficiency; energy analysis;

    机译：氢经济能源效率;能量分析;

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