DOI: 10.15986j.1006-7930.2020.05.008
山西属于寒冷地区,农村面积较大,冬季采暖耗能严重.目前,关于山西省在农村建筑节能领域的研究工作较少,对于未来农村建筑节能工作缺乏相应的科学指导.因此,本文将以外围护结构为主要研究内容,有针对地开展围护结构热工性能改进工作.现有建筑节能分析手段中,存在研究方法单一、典型建筑选取缺乏科学依据、问题分析不够全面等不足.本文将以问卷调查为基础,以数理统计中的聚类分析为典型建筑选取依据,通过DeET能耗模拟软件、ADIAN有限元分析软件相结合的方法,进而分析建筑能耗及围护结构传热等相关问题.分析表明,山西省农村建筑平均能耗为105 W/m2,其中墙体耗能占比最高.从舒适性、节能性及经济性等更加全面的角度出发,得出结构为20 mm保温浆沙+5 mm网格布+50 mm聚苯板+240 mm实心砖墙的墙体在各方面有较突出的优势,在山西农村地区有一定的推广意义.
Shanxi is a cold region, where have a large rural area and severe heating energy consumption in winter. At present, there is less research work on the energy efficiency for rural buildings in Shanxi Province, and there is a lack of corresponding scientific guidance for future energy efficiency in rural buildings. This article takes the envelope structure as the main research content, and carries out targeted improvement work on the thermal performance of the envelope structure. Among existing building energy analysis methods, there are shortcomings such as a single research method, lack of scientific basis for typical building selection, and insufficient comprehensive problem analysis. This paper uses questionnaires as the basis, and a cluster analysis in mathematical statistics as the basis for selecting typical buildings. Through combination of DeET energy simulation software with ADIAN finite element analysis software, the building energy consumption and the heat transfer of the envelope structure are analyzed. Analysis and show that the average rural buildings in Shanxi Province can reach 105 W/m2, of which the wall energy consumption is the highest. From a more comprehensive perspective of comfort, energy saving, and economics, it is concluded that the wall structure of 20 mm thermal insulation mortar+5 mm grid cloth+50mm polystyrene board+240 mm solid brick wall has outstanding advantages in all aspects, and certain promotion significance in Shanxi.
