寒冷地区外窗热工性能对建筑采暖空调负荷的影响  

Analysis of the Influence of Thermal Performance of External Window on Building Heating Air Conditioning Load in Cold Area

作　　者：李杰 潘玉勤 常建国 LI Jie;PAN Yuqin;CHANG Jianguo(Henan Provincial Academy of Building Research,Zhengzhou 450053,China)

机构地区：[1]河南省建筑科学研究院有限公司,河南郑州450053

出　　处：《河南科技》2024年第11期63-68,共6页Henan Science and Technology

基　　金：河南省重点研发专项项目(221111320200)。

摘　　要：【目的】通过研究外窗热工性能对建筑采暖空调负荷的影响,得出各项外窗热工性能参数对建筑节能效果的影响程度,有助于提升建筑的节能效果。【方法】利用DeST-h,建立寒冷地区(郑州)75%节能标准居住建筑基本模型,以太阳得热系数、窗墙比、外窗传热系数为变量进行单因素影响计算,以窗墙比和太阳得热系数、建筑层数和太阳得热系数为变量进行多因素分析,研究太阳得热系数、窗墙比、外窗传热系数对建筑采暖空调负荷的影响。【结果】结果表明,窗墙比、传热系数对建筑采暖空调负荷影响趋势明显,均呈正相关;太阳得热系数对建筑采暖空调负荷影响趋势与建筑窗墙比、建筑层数有关。【结论】建筑外窗节能应优先考虑窗墙比、传热系数,同时在确定当地太阳得热系数时应兼顾窗墙比和建筑层数,以满足更高的节能标准。[Purposes]By studying the impact of external window thermal performance on building heat-ing air conditioning load,the degree of influence of various external window thermal performance param-eters on building energy efficiency is obtained,which helps to improve building energy efficiency.[Meth-ods]Using DeST-h,the basic model of 75%energy-saving standard residential building in cold area(Zhengzhou)was established,and the single factor influence calculation was carried out with solar heat gain coefficient,window-wall ratio and external window heat transfer coefficient as variables,and the ef-fects of solar heating coefficient,ratio of window to wall and heat transfer coefficient of exterior windows on building heating air conditioning loads were studied by using multi-factor analysis.[Findings]The results showed that the influence of window-wall ratio and heat transfer coefficient on building heating air conditioning loads was obvious and positive correlation.The influence trend of solar heating coeffi-cient on heating and air conditioning loads was related to the window-wall ratio and storey the number of buildings.[Conclusions]In order to meet the higher energy-saving standard,the window-wall ratio and heat transfer coefficient should be given priority to the energy-saving of exterior windows,and the window-wall ratio and the number of buildings should be taken into account when determining the local solar heating coefficient.

关 键 词：太阳得热系数 窗墙比 传热系数 建筑采暖空调负荷 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]