Energy saving effect of building envelope in summer

To explore the energy saving effect of building envelope, the experiments were carried out through a comparison of basic cubicle in summer. Experiments show that if energy efficiency measures are applied only in the external walls and windows, the energy saving cubicles have an average energy efficiency ratio of 27.75% and 27.05% when the air change rates are 1.1 and 1.4 h⁻¹ in summer, with both values being over the standard target value by 25%. And the indoor air temperature of the energy saving cubicle is below that of the basic cubicle. The daily mean temperature difference between the interior surface of insulation wall and no insulation reaches 1.47 °C, and the mean temperature difference is up to 8.52 °C between the interior surface and exterior surface of insulating glass and single glass. The two cubicles were simulated for energy consumption using VisualDOE4.0 software under real weather conditions in summer. The results show that the mean deviation is 10.02% between experimental and simulated energy efficiency ratio. The correctness and validity of simulation results of the VisualDOE4.0 software are proved.     

长江流域住宅规划布局对建筑能耗的影响

选取长江流域地区东、中、西部7个代表城市的住宅为研究对象,建立一个6层居住建筑模型,从建筑物规划布局着手,建立理想化的标准居住区布局模式,利用能耗模拟软件VisualDOE4.0,以完全无遮挡的基础建筑为比较对象,量化分析了14种不同的建筑规划布局对建筑能耗的影响,结果证实:采用适当的建筑布局模式可以获得明显的节能效果;从建筑节能的角度来看,长江流域地区不同城市应该采用不同的建筑布局模式。