严寒地区被动式低能耗建筑外墙最佳保温层厚度研究  

Research of Optimal Thermal Insulation Thickness on the External Walls of Passive Low-energy Buildings in Cold Region

作　　者：石俊龙[1] 程大磊 林晓波[1] 刘悦[1] 

机构地区：[1]吉林省建筑科学研究设计院,吉林长春130011

出　　处：《北方建筑》2017年第1期59-62,65,共5页Northern Architecture

摘　　要：为探究严寒地区被动式低能耗建筑外墙最佳保护层厚度,采用理论计算法和生命周期价值法对不同保温层厚度的传热系数及经济性进行计算,基于计算结果对最佳保护层厚度进行分析研究,分析得出当保温层采用EPS板时,厚度增加到220mm以后,无明显节能效果及经济性。为进一步验证外墙最佳保温层厚度,通过实验测试三种典型保温层厚度下同一墙体内表面温度的变化。通过计算及实验得出,当保温层采用EPS板时,严寒地区被动式低能耗建筑外墙最佳保护层厚度为220mm。To explore optimal thermal insulation thickness on the external walls of passive low-energy buildings in cold region,use theoretical calculation method and the lifetime value method to calculate the heat transfer co-efficient and the insulation layer with different thickness.Base on the result, analyse the best thickness of the in-sulation layer.The result is：insulation layer thickness more than 2 2 0mm is not useful for energy savings and econ- omy. To verify the best insulation layer thickness ？ test the inner surface temperature change of same walls at three types typical insulation layer thickness.Through calculation and experiments, when the insulation layer adopts EPS plate,we have the result that the optimal insulation layer thickness of passive low-energy buildings in cold region is 220mm.

关 键 词：被动式低能耗建筑 保温层厚度 传热系数 经济性 

分 类 号：TU111.4[建筑科学—建筑理论]