Multi-objective optimisation of a solar district heating network with seasonal storage for conditions in cities of southern Chile
Multi-objective optimisation of a solar district heating network with seasonal storage for conditions in cities of southern Chile
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DOI：
10.1016/j.scs.2021.103087
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发表时间：
2021-10
影响因子：
11.7
通讯作者：
S. Maximov;S. Mehmood;D. Friedrich
中科院分区：
文献类型：
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作者：
S. Maximov;S. Mehmood;D. Friedrich
城市的快速发展和生活质量的提高大大增加了对室内供暖的需求，特别是在发展中国家。在智利，这种需求主要是通过造成污染问题的低质量生物质来提供的。由于智利大部分地区都有中到高的太阳能资源，应该考虑采用季节性蓄热的太阳能热网。在这篇文章中，我们评估了太阳能与季节性热能储存的使用，通过热网提供家庭供暖。为此，我们在智利的两个地点以成本和温室气体排放为目标，对系统的设计进行了基于模拟的多目标优化。我们的结果表明，与传统的替代方案相比，太阳能热网具有成本竞争力。此外，与传统的燃气供热网络或阻性电加热相比，季节性蓄热可以改善系统的性能，减少约90%的排放，同时使L的COE增加不到20%。我们发现，对于特定的系统配置和位置，如果在经济分析中考虑当地污染的社会成本等外部性，长期储存的太阳能区域供暖可能比燃烧木柴的成本更具竞争力。
Rapid urban growth and enhanced quality of life have significantly increased the demands for indoor heating, especially in the developing world. In Chile, this demand is provided largely through low quality biomass which creates pollution problems. Due to the medium to high solar resource in most of Chile, solar thermal networks with seasonal thermal storage should be considered. In this paper, we assessed the use of solar energy with seasonal thermal energy storage to provide domestic heating through a heat network. For this, we performed a simulation-based multi-objective optimisation of the system’s design with cost and greenhouse gas emissions as objectives for two locations in Chile. Our results show that solar thermal networks are cost-competitive with conventional alternatives. Furthermore, the inclusion of seasonal thermal storage could improve the system performance decreasing the emissions by around 90% while increasing the L C O E by less than 20% compared with a conventional gas-heated network or resistive electric heating. We found that for specific system configurations and locations solar district heating with long term storage could be cost-competitive with burning firewood if externalities such as the social costs of local pollution were considered in the economic analysis.