夏热冬冷地区外墙保温材料厚度的经济性分析

The economic analysis of building exterior wall thermal insulation material thickness in hot summer and cold winter zone

以夏热冬冷的上海地区为例,建立了计算墙体保温材料经济厚度的数学模型,分析了不同保温材料的经济性及其对不同燃料能源产生的温室气体排放量的影响。结果表明,随着保温材料厚度的增加,总投资费用先减小后增大,存在使总投资费用最低的经济保温厚度;当电作为能源时,XPS、EPS、聚氨酯泡沫、玻璃纤维棉及气凝胶保温材料的经济保温厚度分别为63、81、48、54、9mm,新型气凝胶保温材料具有最小的经济厚度。

A mathematicai model to calculate the economic thickness of thermal insulation material is established in hot summer and cold winter zone for Shanghai. The economy of different external thermal insulation materials and the effect of different fuel energy sources on the emission of greenhouse gas emissions were analyzed. The results showed that the total coot decreased first and then increased with the increase of the insulation thickness. The lowest total cost corresponding to the economical thickness was obtained. As the electricity was used as energy source, the economical thickness of XPS,EPS, polyurethane foam,glass fiber and aerogel thermal insulation materials are about 63,81,48,54 and 9 mm,respectively,the new aerogel insulation material has the lowest economic thickness.