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Techno-economic assessment and optimization of Stirling engine micro-cogeneration systems in residential buildings

机译：斯特林发动机微型热电联产系统的技术经济评估和优化

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摘要

Micro-cogeneration offers numerous potential advantages for the supply of energy to residential buildings in the sense of improved energy efficiency and reduced environmental burdens. To realize these benefits, however, such systems must reduce energy costs, primary energy consumption, and CO_2 emissions relative to conventional heating systems. In this paper, we search for optimized strategies for the integration of a Stirling engine-based micro-cogeneration system in residential buildings by comparing the performance of various system configurations and operational strategies with that of a reference system, i.e. hydronic heating and a low temperature gas boiler in standard and passive house constructions located in different climates. The IDA-ICE whole-building simulation program is employed with the Stirling engine micro-cogeneration model that was developed by 1EA/ECBCS Annex 42. In this way the dynamic effects of micro-cogeneration devices, such as warm-ups and shutdowns, are accounted for. This study contributes to the research by addressing hourly changes in the fuel mix used for central electricity generation and the utilization of thermal exhaust through heat recovery. Our results suggest that an optimally operated micro-cogeneration system encompassing heat recovery and appropriate thermal storage would result in a 3-5% decrease in primary energy consumption and CO_2 emissions when compared to a conventional hydronic heating system. Moreover, this configuration is capable of delivering annual savings in all the combinations of electricity and fuel price between 0.05 and 0.15 ekW h~(-1) As can be expected, these results are sensitive to the electrical energy supply mix, building type, and climate.
机译：从提高能源效率和减轻环境负担的意义上来说，微型热电联产为住宅建筑提供能源具有许多潜在的优势。但是，要实现这些好处，相对于常规加热系统，此类系统必须降低能源成本，一次能源消耗和CO_2排放量。在本文中，我们通过将各种系统配置和操作策略的性能与参考系统（即水力加热和低温）的性能进行比较，来寻找将斯特林发动机为基础的微型热电联产系统集成到住宅建筑中的优化策略。处于不同气候的标准和被动房屋结构中的燃气锅炉。 IDA-ICE整个建筑模拟程序与由1EA / ECBCS附件42开发的斯特林发动机微型热电联产模型一起使用。通过这种方式，微型热电联产设备的动态影响（如预热和停机）得以实现。占。这项研究通过解决用于中央发电的燃料混合物的每小时变化以及通过热回收利用热废气的利用，为该研究做出了贡献。我们的结果表明，与传统的水力加热系统相比，包括热量回收和适当的热量存储在内的最佳运行的微型热电联产系统将使一次能源消耗和CO_2排放降低3-5％。此外，这种配置能够在0.05到0.15 ekW h〜（-1）之间的所有电力和燃料价格组合中实现年度节省。可以预见，这些结果对电能供应结构，建筑物类型以及气候。

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  • 来源
    《Energy Conversion & Management》 |2010年第12期|P.2635-2646|共12页
  • 作者

    Kari Alanne; Niklas Soederholm; Kai Siren; Ian Beausoleil-Morrison;

  • 作者单位

    Dept. of Energy Technology, Helsinki University of Technology, P.O. Box 4100, 02015 TKK, Finland;

    rnDept. of Energy Technology, Helsinki University of Technology, P.O. Box 4100, 02015 TKK, Finland;

    rnDept. of Energy Technology, Helsinki University of Technology, P.O. Box 4100, 02015 TKK, Finland;

    Dept. of Mechanical & Aerospace Engineering, Carleton University, Ottawa, Canada;

  • 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

    residential buildings; financial analysis; stirling engine; micro-CHP;

    机译：住宅楼;财务分析;斯特林发动机微型热电联产;

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