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Reduction of the Energy Demand With Passive Approaches in Multifamily Nearly Zero-Energy Buildings Under Different Climate Conditions
Frontiers in Energy Research ( IF 3.4 ) Pub Date : 2020-08-14 , DOI: 10.3389/fenrg.2020.545272
Essam Elnagar , Benjamin Köhler

Nearly zero-energy buildings (nZEBs) will be the standard in Europe in the future. How nZEBs are defined and therefore designed varies amongst Europe due to different national definitions/legislations. Furthermore, finding the optimal building design and technology sets for nZEBs under different boundary conditions (climate, availability of renewable energy sources on-site etc.) and for different building types (residential, non-residential) is still a challenge. Many studies in the field focus on active technologies and renewable energies in buildings. However, the effects of passive approaches on energy consumption are not quantified. This paper therefore focuses on the quantification of the effects of passive design approaches/technologies to improve the energy performance of buildings. Passive approaches are the basis for finding optimal nZEB technology sets. Technology sets are combinations of different types of technologies in nZEBs for both the satisfaction of energy needs and thermal comfort requirements. In this paper different passive approaches for already realized buildings in different European countries with different climate conditions [Stuttgart (Germany), Kiruna (Sweden) and Palermo (Italy)] are demonstrated. Even though several technologies are available to achieve nZEBs, applying and combining these technologies in an optimal way is still a challenge. Furthermore, higher initial investment costs for nZEBs are an obstacle for the market acceleration of nZEBs. Hence finding the best trade-off amongst the different goals, optimizing the most promising passive approaches that can be applied is a central part of the solution.



中文翻译:

不同气候条件下多户近零能耗建筑中被动方法的能源需求减少

未来,近零能耗建筑(nZEB)将成为欧洲的标准。nZEB的定义和设计方式因欧洲国家/地区的定义/法律而异。此外,在不同的边界条件(气候,现场可再生能源的可利用性等)和不同建筑物类型(住宅,非住宅)中找到nZEB的最佳建筑设计和技术集仍然是一个挑战。该领域的许多研究都集中在建筑物的主动技术和可再生能源上。但是,被动方法对能耗的影响尚未量化。因此,本文着重于量化无源设计方法/技术对改善建筑物能源性能的影响。被动方法是找到最佳nZEB技术集的基础。技术集是nZEB中不同类型技术的组合,可以满足能源需求和热舒适性需求。在本文中,针对在不同气候条件下的不同欧洲国家(斯图加特(德国),基律纳(瑞典)和巴勒莫(意大利))已经实现的建筑,采用了不同的被动方法。尽管有几种技术可以实现nZEB,但以最佳方式应用和组合这些技术仍然是一个挑战。此外,nZEB的较高初始投资成本是nZEB市场加速的障碍。因此,要在不同目标之间找到最佳平衡,

更新日期:2020-09-05
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