摘要
为分析墙体对窗户传热特性的影响,本文采用数值分析与实验研究相结合的方法,分别计算了有无墙体,不同的窗户安装位置、墙体导热系数以及墙体厚度等情况下整窗传热系数。结果表明:在所有工况下,考虑墙体影响后整窗传热系数均增大。窗户的安装位置从墙内侧移到墙外侧时整窗传热系数增加率从2.91%增加到6.21%;随着墙体导热系数的增加整窗传热系数的增加率从4.51%增加到5.56%;墙体厚度对整窗传热系数的影响不大。
To analyze the impact of wall on heat transfer characteristics of window, this paper uses both numerical analysis and experimental study to calculate the heat transfer coefficients of overall window respectively with wall built or unbuilt, window installed at different positions, different heat transfer coefficients of wall, different thicknesses of wall, etc. The results show that： In all conditions, heat transfer coefficient of overall window increases after giving consideration to the impact of wall. The heat transfer coefficient of overall window increases from 2.91% to 6.21% when the installation position of window moves from the inner side of wall to the outer side of wall; as the heat transfer coefficient of wall increases, the heat transfer coefficient of overall window increases from 4.51% to 5.56% ; the thickness of wall has little effect on the heat transfer coefficient of overall window.
出处
《建筑科学》
北大核心
2014年第2期94-98,103,共6页
Building Science
基金
四川省建筑节能配套能力专项资金项目"建筑节能门窗的性能计算
检测方法
程序文件与平台建设"(2012-13K)
关键词
窗户
墙体
数值分析
传热系数
window, wall, numerical analysis,heat transfer coefficient
