四川省不同气候区农村住宅运行碳排放规律及减碳策略研究

Study on operational carbon emission regulation and carbon reduction strategy of rural residence in different climate zones of Sichuan Province

目前,农村住宅运行阶段碳排放量约占全国建筑运行阶段总碳排放量的1/4,农村住宅减碳是支撑中国建筑领域“双碳”目标的重要构成。其次,四川省有4个气候区,各气候区的气候条件、农村住宅形式等的差异使得不同气候区农村住宅的运行碳排放存在不同特征,所需减碳策略也不一样。为此,通过能耗模拟和碳排放计算模型分析了不同被动节能技术对四川省不同气候区农村住宅运行碳排放的影响规律,提出了具有针对性的减碳策略。研究发现:高海拔严寒区和高海拔寒冷区农村住宅能耗和碳排放最显著的影响因素是外墙节能技术,夏热冬冷区和温和区最显著的影响因素是采用自然通风策略;采取减碳策略后,4个气候区的减碳效果明显,农村住宅运行阶段碳排放可减少50%以上。

At present,carbon emissions in the rural residence operation stage accounted for about 1/4 of the total carbon emissions in the construction operation stage of the country,rural residence carbon reduction is an important component to support carbon peaking and carbon neutrality goal of Chinese construction field.Secondly,Sichuan Province has four climate zones,and the differences in climate conditions and forms of rural residence in each climate zone lead to different characteristics of carbon emissions in rural residence in different climate zones,and the required carbon reduction strategies are also different.Therefore,through energy consumption simulation and carbon emission calculation model,the influence of different passive energy saving technologies on the carbon emission of rural residence operations in different climate zones in Sichuan Province was analyzed,and targeted carbon reduction strategies were proposed.The results show that the most significant factor affecting energy consumption and carbon emissions of rural residence in high-altitude severe cold zone and high-altitude cold zone is the energy-saving technology of external walls,and the most significant factor affecting the hot summer and cold winter zone and mild zone is the use of natural ventilation strategy.After the climate zones adopt the carbon reduction strategy,the carbon reduction effect is obvious,and the carbon emission of rural residence can be reduced by more than 50%during the operation stage.