建筑围护结构建造过程能源消耗火用分析评价

发布时间：2018-06-15 10:37

本文选题：建筑围护结构 + 能耗　；参考：《湖南大学学报(自然科学版)》2014年04期

【摘要】：建筑围护结构所需的建材从生产制造阶段、运输阶段到现场施工建造阶段都将消耗大量的能源,针对这3个阶段,提出了围护结构建造过程能耗及火用耗的计算方法,并提出火用能比的概念用来评价建筑能源利用的可持续性.以湖南地区某研发中心为研究对象,对其围护结构建造过程能耗进行定量分析,结果表明:围护结构建造过程能耗主要来自于建材生产阶段,其中混凝土及其砌块单位建筑面积生产能耗最大,约占整个生产阶段能耗的44%,其次为钢材,占比约41%;钢材单位建筑面积生产火用耗最大,达到整个生产阶段火用耗的48%左右,混凝土及其砌块占比38%左右.从火用能比角度分析,钢材最大,为0.92,水泥最小,为0.59.整个围护结构建造过程火用能比为0.79.结果可为研究"烂尾楼"能耗现状提供参考.提出的火用分析评价方法可以应用于其他类似建筑,并为围护结构可持续建造提供参考.
[Abstract]:The building materials needed for building envelope structure will consume a lot of energy from manufacturing stage, transportation stage to site construction stage. In view of these three stages, the calculation method of energy consumption and exergy consumption in construction process of enclosure structure is put forward. The concept of exergy energy ratio is proposed to evaluate the sustainability of energy use in buildings. Taking a research and development center in Hunan province as the research object, the energy consumption of the construction process of the enclosure structure is quantitatively analyzed. The results show that the energy consumption of the construction process of the enclosure structure mainly comes from the stage of building materials production. Among them, the production energy consumption of concrete and its block per unit building area is the largest, accounting for 44% of the energy consumption in the whole production stage, followed by steel products, accounting for about 41%; the exergy consumption per unit building area of steel products is the largest, reaching about 48% of the exergy consumption in the whole production stage. Concrete and its block account for about 38%. From the perspective of exergy energy ratio, the steel is the largest, 0.92and the cement is the smallest, 0.59. The exergy energy ratio of the whole construction process is 0.79. The results can provide a reference for the study of energy consumption status of "uncompleted building". The proposed exergy analysis and evaluation method can be applied to other similar buildings and provide a reference for the sustainable construction of the enclosure structure.
【作者单位】：湖南大学土木工程学院;中国建筑第五工程局有限公司;
【基金】：湖南省科技重大专项资助项目(2010FJ1013) 国家国际科技合作资助项目(2010DFB63830) 湖南省住房和城乡建设厅科技计划资助项目(KY201111)
【分类号】：TU111.4

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