寒冷地区高层办公楼立面开窗节能影响因子分析

Analysis of Energy-Saving Impact Factors of Window Openings on Facade of High-Rise Office Buildings in Cold Regions

以寒冷地区(烟台)高层办公楼标准层为研究对象,借助Ladybug+Honeybee进行模型模拟和能耗计算,考察不同方位下窗墙比WWR、窗高WH和窗台高SH的不同取值对AC、AH、AL及AT的影响。研究表明:在寒冷地区的高层办公楼标准层立面开窗设计中,WWR是影响室内AC和AH的主导因素;考虑到AT低减,WWR、WH和SH的取值在区间范围内越大越好,其中WWR的取值在0.3~0.7范围内办公空间立面开窗的最佳方位次序为南向、东向、北向、西向;因子的取值变化对各朝向的建筑AT影响程度不同:WWR_(S)>WWR_(N)>WWR_(E)>WWR_(W);WH_(E)>WH_(S)>WH_(N)>WH_(W);SH_(S)>SH_(E)>SH_(N)>SH_(W)。

Taking the standard floor of a high-rise office building in cold region(Yantai)as the research object,model simulation and calculation of energy consumption are carried out with the help of the LB+HB(ladybug and honeybee)platform.The effects of different factors including WWR(window-to-wall ratio),WH(window height)and SH(sill height)on building's AC,AH,AL and AT(annual cooling,heating,lighting and totaling)are investigated.It is shown that WWR is the dominant factor affecting indoor AC and AH in the design of facade windowopening,and larger values of WWR,WH and SH within a certain range are preferable in terms of AT reduction.The best orientation for sequence window-opening is south,east,north,and west when WWR is in the range of 0.3 to 0.7.Different factors have varied influences on AT under different orientations:WWR_(S)>WWR_(N)>WWR_(E)>WWR_(W);WH_(E)>WH_(S)>WH_(N)>WH_(W);SH_(S)>SH_(E)>SH_(N)>SH_(W)。