摘要
墙体表面的颜色、墙壁的朝向、绝缘隔热材料的选择是影响建筑节能的主要因素。因此,在考虑太阳能辐射影响的同时,分析墙体表面颜色、墙壁朝向以及绝缘隔热材料(包括膨胀珍珠岩、聚氨酯泡沫塑料、挤塑聚苯乙烯泡沫塑料、岩棉毡、膨胀蛭石等5种绝缘隔热材料)对建筑能耗的影响。选择上海、长沙、韶关和成都4个典型城市代表夏热冬冷地区的4个分区,用这4个城市的气象年数据进行经济性分析。结合墙体表面的颜色、墙壁的朝向、绝缘隔热材料等三方面的影响,计算出墙体的最佳保温层厚度。在此基础上,计算出在20年的生命周期内所节约的最大成本及投资回收期。
The main factors that can affect building energy efficiency include surface colors of walls, different orientations of the walls and insulation materials. Therefore, considering the impact of solar radiation on the surface of walls, all surface colors and different orientations must be analyzed, and appropriate insulation materials shall be selected, including the expanded perlite, polyurethane foam, extruded polystyrene foam, mineral wool felt and expanded vermiculite. Four typical cities of Shanghai, Changsha, Shaoguan and Chengdu are selected to represent A, B, C and D subzone of hot summer and cold winter zone in China, respectively. Typical meteorological year data of four cities are applied for economic analysis. Considering the surface colors, different orientations and insulation materials, optimum thicknesses of five materials are calculated. Then, the cost saving over the life cycle of two decades and payback period are calculated based on optimum thicknesses of the five materials.
出处
《建筑节能》
CAS
2014年第5期62-65,共4页
BUILDING ENERGY EFFICIENCY
