建筑体形系数对保温最优厚度的影响研究  

Study on the Influence of Building Shape Coefficient on the Optimal Thickness of Thermal Insulation

作　　者：张垚 丁玉贤 牛建刚 Zhang Yao;Ding Yuxian;Nin Jiangang(Inner Mongolia University of Science and Technology)

机构地区：[1]内蒙古科技大学土木工程学院

出　　处：《区域供热》2019年第4期130-135,共6页District Heating

基　　金：内蒙古科技大学创新基金项目“基于云理论的建筑能耗预测模型与管理信息系统”(2017QDL-S07)

摘　　要：建筑体形系数是节能设计指标参数之一,但目前关于其对外保温最优厚度的影响研究较少.本文通过DeST能耗模拟,建立外保温最优厚度数学模型,在保持建筑层高H和周长L不变情况下,探究体形系数对最优厚度的影响规律.研究结果表明:采取节能保温措施后,单位建筑面积能耗随着体形系数的减小而增大;建筑体形系数与生命周期总费用成正相关,与外保温最优厚度成负相关;从绝对经济增量角度考虑,体形系数对生命周期内总费用影响的实际参考价值大于对最优厚度的影响.The building shape coefficient is a parameter of energy-saving design, but the research sparsely on the relationship between it and optimal thickness of external insulation. In this paper, the mathematical model of the optimal thickness of external insulation is established by using DeST which is energy consumption simulation, and the relationship between shape coefficient and optimal thickness is explored without changing the height and circumference of the building.The results show that the energy consumption per unit area increases with the decrease of the shape coefficient. The shape coefficient is positively correlated with the total cost of life cycle, and negatively correlated with the optimal thickness of external insulation. From the perspective of absolute economic increment, the actual reference value of the shape coefficient on the total cost of the life cycle is greater than the influence on the optimal thickness.

关 键 词：体形系数 能耗模拟 保温系统 经济模型 最优厚度 

分 类 号：TU111.41[建筑科学—建筑理论]