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北京市主要建筑保溫材料生命周期與環(huán)境經(jīng)濟效益評價

發(fā)布時間:2018-04-22 21:34

  本文選題:建筑外墻保溫材料 + DeST軟件; 參考:《生態(tài)學報》2014年08期


【摘要】:在低碳、綠色、環(huán)保、生態(tài)成為當代城市文明的主題下,建筑保溫材料作為建筑節(jié)能最主要的解決途徑之一備受關注,以北京市75%節(jié)能6層模擬住宅為例,利用DeST-h軟件計算得出其墻體傳熱系數(shù)K值為0.40 W m-2K-1,節(jié)約電量42.31 kW h-1m-2,通過計算可節(jié)約標煤17.09 kg/m2,減少CO2排放量42.19 kg/m2,減少SO2排放量1.27 kg/m2,減少NOx排放量0.635 kg/m2,減少煤粉塵排放量11.5 kg/m2,減少煤煙塵排放5.75 kg/m2,環(huán)境效益36.66元/m2。并利用生命周期原理進行簡化計算出4種常見保溫材料巖棉、XPS、EPS和聚氨酯的50a建筑壽命周期中的總能耗分別為6.55×106、6.63×106、6.58×106、6.77×106kJ/m2,其中不同階段能耗所占的比例從大到小依次為運行能耗生產(chǎn)能耗運輸能耗。保溫材料資金回收年限、環(huán)境效益回收年限和能耗回收年限的大小順序:聚氨酯XPS≈EPS巖棉,三者順序基本一致。并對建筑外墻保溫材料科學評價與發(fā)展趨勢進行探討。
[Abstract]:Under the theme of low carbon, green, environmental protection and ecology as the theme of contemporary urban civilization, building insulation materials as one of the most important ways to solve the problem of building energy conservation have attracted much attention. Taking the 75% energy-saving six-story residential building in Beijing as an example, The wall heat transfer coefficient K is 0.40 W m ~ (-2) K ~ (-1) and electricity saving is 42.31 kW ~ (-1) m ~ (-2) by DeST-h software. It can save 17.09 kg 路m ~ (-2) 路m ~ (2) of standard coal, 42.19 kg / m ~ (2) of CO2 emission, 1.27 kg / m ~ (2) of SO2 emission, 0.635 kg / m ~ (2) of NOx emission, and 0.635 kg / m ~ (2) of coal dust emission. The emission amount is 11.5 kg / m ~ (2), reducing coal smoke emission 5.75 kg / m ~ (2), environmental benefit 36.66 yuan / m ~ (2). By using the life cycle principle, the total energy consumption in the 50a building life cycle of four common insulating materials, XPS EPS and polyurethane, is 6.55 脳 10 6, 6.63 脳 10 6, 6.58 脳 10 6, 6. 77 脳 10 6 KJ / m 2, respectively. The proportion of energy consumption in different stages is in order of operation from large to small. Energy consumption production energy consumption transportation energy consumption. The order of recovery life of heat preservation material, environmental benefit and energy consumption: polyurethane XPS 鈮,

本文編號:1789065

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