装配式草砖结构农宅生命周期生态效益研究  

Study on life cycle ecological benefits of prefabricated straw bale rural residences

作　　者：魏广龙[1] 倪熙茁 姚胜 王朝红 WEI Guanglong;NI Xizhuo;YAO Sheng;WANG Chaohong(School of Architecture and Art Design,Hebei University of Technology,Tianjin 300130,China)

机构地区：[1]河北工业大学建筑与艺术设计学院,天津300130

出　　处：《西安理工大学学报》2022年第3期375-385,共11页Journal of Xi'an University of Technology

基　　金：河北省省级科技计划资助项目(21556203D);河北省社会科学发展研究课题资助项目(20210301148)。

摘　　要：基于生命周期分析理论和方法建立了农村住宅碳排放计算模型,同时结合Gabi软件,选取CO_(2)排放量以及酸化潜力、富营养化潜力和人体毒性等环境影响指标,针对北京地区某建成装配式草砖结构农宅与当地普通农宅进行生命周期生态效益评价。结果表明,在50年生命周期内装配式草砖结构农宅碳排放量是普通农宅的33.52%,其中建筑使用阶段装配式草砖结构农宅碳排放量仅为普通农宅的27.04%,同时其造成的综合环境影响也明显降低,为普通农宅的30.99%。因此从生态效益的角度出发,草砖墙体、光伏发电以及空气源热泵等技术在未来农宅的节能设计中具有广阔的应用前景。Based on the theory of and the method for the life cycle assessment(LCA),a calculating model for carbon emissions of rural residences is established.This study selected indicators such as CO_(2) emission,eutrophication potential,human toxicity recommended and acidification potential to analyze the comprehensive ecological benefits through the comparison between a prefabricated straw bale residence already built in Beijing with a local normal rural residence.The LCA software Gabi is used to evaluate the environmental effect.Results show that the amount of CO_(2) emission of the prefabricated straw bale residence is 33.52%of the normal rural residence in 50-year life cycle.The carbon emissions of the prefabricated straw bale residence generated in operation phase is just 27.04%of the normal rural residence.Meanwhile the environmental effect has been obviously reduced to 30.99%of the normal rural residence during this time.From the perspective of ecological benefits,the technology such as the straw bale wall,photovoltaic power generation and air source heat pump can enjoy a vast application in the future design of rural residences.

关 键 词：生命周期评价 草砖墙体 低能耗农宅 碳排放 生态效益 

分 类 号：TU241.4[建筑科学—建筑设计及理论]