既有建筑物平屋顶围护结构节能评估与改造  

Energy-saving Evaluation and Retrofitting for Building Envelope of Flat Roof

作　　者：白宪臣[1] 陈天丽[1] 张改新[2] 刘怡燕[1] 

机构地区：[1]河南大学土木建筑学院,河南开封475004 [2]河南大学环境与规划学院,河南开封475004

出　　处：《水电能源科学》2010年第8期159-161,42,共4页Water Resources and Power

基　　金：河南省重点科技攻关计划基金资助项目(071150122)

摘　　要：为提高既有建筑物保温隔热能力和节能效果,以郑州市区既有建筑物为例构建计算模型,通过计算发现该类建筑物平屋顶围护结构传热系数热工指标及节能效果远低于国标相关规定。针对室内热环境差、建筑运行能耗高等问题,提出了平屋顶围护结构增设保温隔热层、"平"改"坡"和采用装饰保温材料做吊顶等节能改造措施,并进行热工节能可行性技术分析,取得了较好效果,可供借鉴。Taking the existing buildings in Zhengzhou City for an example,the calculation model is established to improve the thermal insulation ability and energy saving effect.It is found that the heat transfer coefficient and energy saving effect for building envelope of flat roof is greatly low the relevant provisions of national standards.Aiming at the indoor poor thermal environment and high energy consumption,three kinds of measures are put forward to save energy.The first is that additional thermal insulation layer is added to the building envelope of flat roof;the second is that flat roof is changed into slope roof;and the third is decorative ceiling with thermal insulation material.At the same time,the technical feasibility of thermodynamic saving energy is analyzed and the effect is good.Thus,it provides reference for engineering project.

关 键 词：既有建筑物 平屋顶 围护结构 节能评估 Flat Building 节能效果 保温隔热层 郑州市区 热工指标 热工节能 技术分析 计算模型 改造措施 传热系数 保温材料 能耗高 环境差 装饰 运行 

分 类 号：TK79[动力工程及工程热物理—流体机械及工程] TV7[水利工程—水利水电工程]