基于TRNSYS的零能耗居住建筑生命周期碳排放及成本分析
Life cycle carbon emissions and cost analysis of zero-energy residential buildings based on TRNSYS
摘要：
在“双碳”目标背景下,零能耗建筑通过高效利用可再生能源显著降低建筑运行碳排放,但其生命周期环境影响及经济性仍需系统评估。本文结合生命周期评价(LCA)与生命周期成本(LCC)理论,构建考虑碳税政策的建筑生命周期碳排放及成本计算模型,并以夏热冬冷地区某零能耗居住建筑为例展开分析。研究结果表明:基于风能发电的零能耗建筑(ZEB-WT)系统在生命周期内减排效果最优,其使用维护阶段碳排放占比为-3.40%;与基准建筑(无可再生能源)相比,ZEB-WT系统的传统成本降低了19.23%,碳成本降低了46.81%,总成本降低了19.82%。
Abstract：
Under the background of “dual carbon” goals, zero-energy buildings can significantly reduce carbon emissions from building operations by efficiently utilizing renewable energy, but their environmental impact and economic efficiency throughout the life cycle still need to be systematically evaluated. This paper combines the life cycle assessment (LCA) and life cycle cost (LCC) theories to construct a carbon emission and cost calculation model for buildings throughout the life cycle with consideration of carbon tax policies, and takes a zero-energy residential building in hot summer and cold winter zone as an example for analysis. The results show that the system of the zero-energy building based on wind turbine (ZEB-WT) has the best emission reduction effect throughout the life cycle, and its carbon emissions during the use and maintenance phase account for -3.40%. Compared with the benchmark building (without renewable energy), the traditional cost of the ZEB-WT system is reduced by 19.23%, the carbon cost is reduced by 46.81%, and the total cost is reduced by 19.82%.
Keywords:zero energy; residential building; life cycle assessment; life cycle cost; carbon emission; carbon cost