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Energy life-cycle approach in Net zero energy buildings balance: Operation and embodied energy of an Italian case study

机译：零能耗净建筑中的能源生命周期方法：一个意大利案例研究的运行和内含能源

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摘要

The paper starts from the results of one of the six case-studies of the SubTask B in the International Energy Agency joint Solar Heating and Cooling Task40 and Energy Conservation in Buildings and Community Systems Annex 52, whose purpose is to document state of the art and needs for current thermo-physical simulation tools in application to Net Zero Energy Buildings. The authors extend the Net Zero Energy Buildings (Net ZEB) methodological framework, introducing the life-cycle perspective in the energy balance and thus including the embodied energy of building and its components. The case study is an Italian building, tailored to be a Net ZEB, in which the magnitude of the deficit from the net zero energy target is assessed according to a life-cycle approach. The annual final energy balance, assessed with regard to electricity, shows a deficit which makes the case study a nearly Net ZEB, when the encountered energy flows are measured at the final level. Shifting from final to primary energy balance the case-study moves to a non-Net ZEB condition, because of the large difference between the conversion factors of photovoltaics generated electricity and imported electricity. The adoption of a life cycle perspective and the addition of embodied energy to the balance causes an even largest shift from the nearly ZEB target: the primary energy demand is nearly doubled in comparison to the primary energy case.
机译：本文从国际能源署联合开展的太阳能供热和制冷任务40与建筑物和社区系统节能52子任务B的六个案例研究之一的结果开始，其目的是记录最新技术和应用于零净能耗建筑的当前热物理模拟工具的需求。作者扩展了零能耗建筑网（Net ZEB）的方法框架，在能量平衡中引入了生命周期观点，从而包括了建筑物及其组成部分的体现能量。案例研究是一幢意大利建筑，专门设计为净ZEB，其中根据生命周期方法评估净零能耗目标的赤字幅度。用电评估的年度最终能源平衡显示出赤字，当案例中遇到的能量流以最终水平测量时，该案例研究几乎达到净零排放。从最终能源平衡到主要能源平衡，案例研究转向非净零排放环境，因为光伏发电与进口电力的转换因子之间存在很大差异。从生命周期的角度出发，并在平衡中增加了体现的能量，这导致了从接近ZEB目标的最大变化：与一次能源相比，一次能源需求几乎翻了一番。

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  • 来源
    《Energy and Buildings》 |2014年第4期|371-381|共11页
  • 作者

    Maurizio Cellura; Francesco Guarino; Sonia Longo; Marina Mistretta;

  • 作者单位

    Dipartimento di Energia, Ingegneria dell'Informazione e Modelli Matematici, Universita di Palermo Viale delle Scienze 90128 Palermo, Italy;

    Dipartimento di Energia, Ingegneria dell'Informazione e Modelli Matematici, Universita di Palermo Viale delle Scienze 90128 Palermo, Italy;

    Dipartimento di Energia, Ingegneria dell'Informazione e Modelli Matematici, Universita di Palermo Viale delle Scienze 90128 Palermo, Italy;

    Dipartimento Patrimonio, Architettura, Urbanistica, Universita Mediterranea di Reggio Calabria, Salita Melissari 89124 Reggio Calabria, Italy;

  • 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

    Embodied energy; Energy balance; Energy life-cycle approach; Net ZEB;

    机译：体现的能量;能量平衡;能源生命周期方法;净ZEB;

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