摘要
以合肥地区某实际办公建筑为例,采用计算流体力学与建筑环境及暖通系统模拟技术,采用自然通风与建筑室内热动态耦合模拟分析,基于不同自然通风形式,利用多区域通风网络原理,得到了自然通风量逐时动态变化的耦合基准模型,研究在动态自然通风情景下窗墙比对建筑能耗的影响。研究结果表明,在合肥地区实际动态自然通风情景下,随窗墙比的增加,混合自然通风形式的全年节能率在16.65%~17.17%之间,贯流自然通风形式的全年节能率在16.56%~17.41%之间,单侧自然通风全年节能率则在15.39%~18.65%之间,可为合肥地区基于实际自然通风量逐时变化情景下建筑节能设计工作提供参考。
Taking an actual office building in Hefei area as an example,a coupled simulation analysis of natural ventilation and building indoor heat dynamics is conducted using computational fluid dynamics and building environment and HVAC system simulation techniques.Based on different natural ventilation forms,a coupled benchmark model with time-by-time dynamic changes of natural ventilation is obtained using the principle of multi-zone ventilation network to study the influence of window-wall ratio on building energy consumption under dynamic natural ventilation scenarios.The research results show that under the actual dynamic natural ventilation scenario in Hefei,the annual energy saving rate of mixed natural ventilation ranges from 16.65%to 17.17%,the annual energy saving rate of cross-flow natural ventilation ranges from 16.56%to 17.41%,and the annual energy saving rate of single-side natural ventilation ranges from 15.39%to 18.65%with the increase of window-to-wall ratio,which can be used for the Hefei area.The research will provide a reference for the energy-saving design of buildings in Hefei based on the time-to-time variation of the actual natural ventilation.
作者
胡浩威
康晓彬
叶长青
韩号
殷子文
HU Haowei;KANG Xiaobin;YE Changqing;HAN Hao;YIN Ziwen(Anhui Institute of Strategic study on Carbon Emissions Peak and Carbon Neutrality in Urban-Rural Development,Ministry of Education,Anhui Jianzhu University,Hefei 230022,China;Engineering Research Center of Building Energy Efficiency Control and Evaluation,Ministry of Education,Anhui Jianzhu University,Hefei 230022,China;Anhui Association of Building Energy Conservation and Technology,Hefei 230091,China;State Grid Anhui Electric Power Co.Ltd.,Hefei 230041,China)
出处
《建筑节能（中英文）》
CAS
2023年第5期37-41,61,共6页
Building Energy Efficiency
基金
安徽省高校杰出青年基金资助项目(2022AH020028)
安徽省自然科学基金资助项目(1908085QF292)
安徽省住房城乡建设科学技术计划项目(2022-RK025、2021-RK11)。
关键词
自然通风
计算流体力学
风压系数
窗墙比
建筑能耗
natural ventilation
computational fluid dynamics
wind pressure coefficient
window-wall ratio
building energy consumption
