夏热冬暖地区中小型建筑天井对建筑能耗的影响

The Impact of Building Patios on Energy Consumption in Small and Medium-sized Buildings in Hot Summer and Warm Winter Regions

这项研究旨在响应节能减排政策,通过对不同天井设计形式进行能耗真实物理模拟,探讨天井设计对建筑能耗的影响。模拟结果显示:(1)随着天井面积与建筑投影面积比例由4.89%增至24.95%,建筑单位面积全能耗由100.69 kWh/m^(2)增加至119.21 kWh/m^(2)。建筑全能耗和建筑体型系数呈正相关,可通过缩小建筑天井面积实现建筑整体节能。(2)天井深度对建筑单位面积全能耗影响不大。(3)不同几何形态对建筑单位面积全能耗影响不大。(4)天井形式影响建筑单位面积全能耗,开放式侧边天井能耗最低,其次为封闭式天井,开放式中央天井能耗最高。研究成果可用于指导天井类及中庭类建筑的建筑设计,以降低建筑整体能耗。本研究仅采用斯维尔软件进行实验,研究结果有待现实样本或不同软件对比的进一步确认和完善。

This study aims to respond to energy-saving and emission reduction policies by conducting real physical simulations of different building patio design forms to explore their impact on building energy consumption.The simulation results indicate the following under controlled variable conditions:(1) As the ratio of patio area to building projection area varies from 4.89% to 24.95%,building energy consumption per unit area continuously increases from 100.69 kWh/m~2 to 119.21 kWh/m~2.Building energy consumption is positively correlated with the building form coefficient,and minimizing the building patio area is advantageous for overall building energy conservation.(2) Patio depth has minimal impact on building energy consumption per unit area.(3) Different geometric forms have little impact on building energy consumption per unit area.(4) Among different building patio types,open-side patios have the lowest energy consumption,followed by enclosed patios,and open-center patios consume the most energy.The research findings can be used to guide building design in buildings with patios and atriums,aiming to minimize overall building energy consumption.This study only utilized Sefaira software for experimentation,and further confirmation and refinement of thefindings are needed through real samples or comparisons with other software.