多气候区不同窗墙比下功能布局对办公建筑能耗的影响

Influence of Functional Layout with different WWR on Office Building Energy Consumption Among Various Climate Zones

为探究窗墙比与建筑空间功能布局对建筑能耗的复合影响,对各气候区建筑节能设计提供参考和借鉴。运用DesignBuilder作为仿真模拟工具,模拟比较了中国严寒地区、寒冷地区、夏热冬冷和夏热冬暖地区5种预设的办公建筑功能布局在不同窗墙比下的建筑能耗,并对各模拟方案的各分项能耗进一步比较分析。结果显示不同窗墙比区段下功能布局变化对建筑能耗影响较大,且不同窗墙比区段下的最优空间布局方案有明显差异。在严寒、寒冷地区重点考虑的低窗墙比区段,核心筒作为低性能区域,位于中央远离气候边界布局节能效益最大。在夏热冬冷、夏热冬暖地区的高窗墙比区段,低性能核心筒区域位于偏心布局的能耗略低于中央布局方案。相对而言,核心筒在各种偏心布局之间变化的能耗差异较小。

In order to explore the composite influence of WWR(window-to-wall ratios)and building space function layout on building energy consumption this paper uses Design Builder as a simulation tool to simulate and compare the building energy consumption of five preset office building functional layouts in China’s severe cold,cold,hot summer and cold winter,and hot summers and warm winter zones under different WWR.The energy consumption of each sub-item of each simulation scheme is further compared and analyzed.The results show that the impact of functional layout changes on building energy consumption varies significantly under different WWR sections,and the optimal space layout schemes under different WWR sections are significantly different.In the low-WWR section that is mainly considered in severe cold and cold zones,the core tube,as a low-performance area,is located in the center away from the climate boundary and has the greatest energy-saving benefits.In the high-WWR section in hot summer and cold winter and hot summer and warm winter zones,the energy consumption of the low-performance core tube area located in the eccentric layout is slightly lower than that of the central layout scheme.Relatively speaking,the difference in energy consumption of the core tube between various eccentric layouts is less obvious.