摘要
节能建筑外墙的保温层能起到减少建筑物外墙能耗损失的目的,但在实际建设中保温层的厚度不能无限制的增大,往往与建设方的一次性建设投资和用户对建筑外墙的保温性能的要求相联系。本文利用生命周期价值的方法,建立了外墙保温层厚度经济性优化数学模型,使外墙在保温层生命周期内所造成的能耗费用和保温层造价之和最低,并且对最佳保温层厚度几项影响因素进行分析。利用该数学模型,以长沙地区为例,计算了《湖南省居住建筑节能设计标准》中6种基层墙体的最佳保温层厚度。
The insulation of external wall can reduce building energy consumption in energy saving building, but the insulation thickness is affected by construction fund and heat preservation performance. Economical optimum mathematics model of insulation thickness is established on external wall by using life cycle cost for the whole expenses of cncrgy consumption and insulation construction minimum. Many influence factors of the optimum insulation thickness are analyzed. The optimum insulation thickness of six skeleton wall are gotten in Design Standard of Residential Building for Energy Efficiency in Hunan Province by using economical optimum mathematics model in Changsha.
出处
《建筑热能通风空调》
2005年第6期73-76,共4页
Building Energy & Environment
基金
湖南省自然科学基金资助项目
关键词
保温层厚度
外墙
节能建筑
生命周期价值
经济性
insulation thickness, external wall, energy saving building, life cycle cost, economics
