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首页> 外文期刊>Journal of Infrastructure Systems >Life-Cycle Impact Analysis of Energy Systems for Buildings
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Life-Cycle Impact Analysis of Energy Systems for Buildings

机译：建筑能源系统的生命周期影响分析

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Cogeneration systems offer an opportunity to satisfy a building's electrical and thermal loads, which could result in an overall energy efficiency improvement and lower environmental impact. Hourly energy simulation and a life-cycle assessment framework are used to evaluate the relative environmental impacts and energy efficiencies of the construction and operation of alternative technologies for providing space and domestic water heating, cooling, and electrical power for equipment and lights in buildings. Life-cycle comparisons are presented for current practice (average U.S. power generation mix, electric chillers, and gas-fired boilers), high-efficiency natural gas combined-cycle power generation, and three building-integrated combined heat and power (CHP) technologies. The analysis demonstrates (1) a framework that supports decision making regarding system selection and operational strategies to limit environmental impact; (2) the importance of a life-cycle assessment framework, illustrated by the analysis of global warming potentials and tropospheric ozone potential; and (3) the importance of building load characteristics for the analysis of CHP scenarios.
机译：热电联产系统为满足建筑物的电气和热负荷提供了机会，这可能会提高整体能效并降低环境影响。每小时进行一次能源模拟和一个生命周期评估框架，以评估替代技术的施工和运营对环境的相对影响和能效，这些替代技术可为建筑物的设备和照明提供空间和生活用水供暖，制冷和电力。针对当前实践（美国平均发电混合，电制冷机和燃气锅炉），高效天然气联合循环发电以及三种建筑物综合热电联产（CHP）技术，进行了生命周期比较。分析表明（1）支持有关系统选择和运营策略以限制环境影响的决策的框架； （2）通过对全球变暖潜力和对流层臭氧潜力的分析表明，生命周期评估框架的重要性； （3）建筑负荷特性对热电联产情景分析的重要性。

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