多标准方法评估太阳能辅助区域供热在德国市场

M. Abokersh, M. Vallès, L. Cabeza, D. Boer
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引用次数: 3

摘要

根据欧盟在减少温室气体排放和通过在高效区域供热领域中存在可再生能源份额来取代传统热源的雄心勃勃的计划,季节性储存与区域供热厂相结合可以为这一目标做出可行的贡献。然而,业绩的不确定性,加上对与部署这些创新区域供热系统有关的财政潜力和温室气体减排的评估不足,对充分应用这一系统构成了巨大挑战。我们的工作倾向于探索在德国市场的住宅部门大规模部署季节性存储的前景。拟议的方法框架相应地基于多目标方法,该方法用于在拟议系统的整个生命周期中,与相对的传统加热系统相比,根据汇总的环境度量来优化成本。在这种情况下,建议的方法框架适用于柏林作为中欧气候区的代表,考虑到季节性和短期存储系统及其相对负载概况。与太阳能区域供热系统(SDHS)相关的环境改善,加上中欧气候区的季节性储存,在决策中被充分考虑,因此建议将SDHS作为替代传统热源的可持续解决方案。此外,所提出的方法框架成功地消除了年度系统变化。因此,所调查气候带的年太阳分值从未低于97.8%。总的来说,这项研究可以帮助批准SDHS的可行性,目标是在德国建立一个更可持续的能源基础设施。
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A Multicriteria Approach to Evaluate Solar Assisted District Heating in the German Market
Following the ambitious EU plan in cutting the greenhouse emission and replacing conventional heat sources through the presence of renewable energy share inside efficient district heating fields, seasonal storage coupled with district heating plants can have a viable contribution to this goal. However, the performance uncertainty combined with the inadequate assessment regarding the financial potential and the greenhouse emission reduction associated with the deployment of those innovate district heating systems represents a great challenge for sufficiently apply it. Our work tends to explore the prospects for wide-scale deployment of the seasonal storage in the residential sector in the German market. The proposed methodology framework correspondingly based on a multi-objective approach which is applied to optimize the cost against an aggregated environmental metric throughout the life cycle of the proposed system in comparison to their relative conventional heating systems. In this context, the proposed methodology framework is applied to Berlin as a representative for the central European climate zone with consideration for the seasonal and short-term storage systems and their relatively load profiles. The environmental improvement associated with the solar district heating system (SDHS) coupled with seasonal storage in the central European climate zone is heavily weighed enough in decision making for proposing SDHS as a sustainable solution replacing the conventional heat sources. Furthermore, the proposed methodology framework successes in eliminating the yearly system variation. Thus, the yearly solar fraction never goes down below than 97.8% in the investigated climate zone. Overall this study can assist in approving the feasibility of the SDHS with the goal of establishing a more sustainable energy infrastructure in Germany.
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