摘要
由于现代公共建筑追求美观和通透性,窗口面积越来越大,导致建筑制冷能耗增加。夏季,降低窗和玻璃幕墙的外遮阳系数可以有效降低建筑空调能耗,然而降低窗的外遮阳系数的同时也减少了对自然光的利用,因此,需要对空调能耗和室内光环境进行权衡判断。基于济南实际工程案例,运用Design Builder软件,从光和热两方面考虑,对建筑百叶外遮阳构造进行优化改造分析。结果表明,合理的增加百叶宽度或减小百叶间距,可以降低空调制冷能耗,增加室内采光均匀度。
In order to get a better view and concise appearance of the facade,the larger window and glass curtain wall often are chosen in modern architecture design,which results in the increase of building energy consumption.In summer,decreasing the shading coefficient of the glazing system is one of the most effective methods to reduce the cooling energy consumption.However,it will lead to the less use of the daylight.Therefore,a balance adjustment between the energy consumptions of cooling and daylight should be carried out.Base on the project case in Shandong,through the theoretical analysis and simulation with the software of DesignBuilder,the energy consumption of air-conditioning and indoor light environment under different dimensions and spacing of a public building in Jinan was simulated.Then it proposes a horizontal external shading optimal design strategy and theoretical reference for architects.
作者
崔艳秋
李炳云
刘松
CUI Yan-qiu;LI Bing-yun;LIU Song(Shandong University of Architecture,Jinan 250101,China;Beijing Jiaotong University,Beijing 100044,China)
出处
《建筑节能》
CAS
2018年第4期127-129,共3页
BUILDING ENERGY EFFICIENCY
关键词
百叶外遮阳
自然采光
能耗
数值模拟
louver external shading
natural illumination
building energy consumption
numerical simulation
