被动节能技术对岭南高层住宅生态性的影响

Impact of Passive Energy-saving Technology on Ecology of Lingnan High-rise Residential Buildings

被动式节能方法根据建筑所处的气候特征,以无机械动力的方式与周围环境进行能量交换,可降低建筑耗能并提高建筑生态性.以珠海横琴新家园为例,利用建筑物理环境仿真模拟计算软件的模拟结果和实际的各项物理指标的实测结果的对比,研究了被动节能技术在高层住宅中的应用,并分析了其对岭南地区高层住宅建筑生态性的影响,分析表明:岭南地区高层住宅应采取措施降低太阳辐射和加强室内自然通风以提高室内环境舒适度;为确保良好的室内通风效果,建筑的主要朝向应尽量迎向主导风向,并确保室内通风通道顺畅、均匀,除此以外自然通风开口面积应满足要求且方便调节,以便人们灵活开启使用并在不需要的时候及时关闭;岭南地区高层住宅全年存在较大的降温需求及新风需求,应合理利用建筑遮阳构件减少太阳辐射得热,同时将室外适宜状态下的新风引入室内降温及补充室内新风,从而实现建筑与周围环境的能源和物质交换、构成和谐的建筑热生态系统和风生态系统.

Passive energy-saving method helps buildings exchange energy with the surrounding environment without mechanical power based on their climate characteristics.These methods can reduce the energy consumption of buildings and improve architectural ecology.Taking “Hengqin New Home”as an example,the simulation results of buildings physical environment simulation calculation software were compared with the actual measured results of various physical indicators.It aims to study the application of passive energy-saving technology in high-rise residential buildings,and its impact on the ecology of high-rise residential buildings in south of five ridge of China(also referred “Lingnan area”).The study shows that high-rise residential buildings in Lingnan area should take measures to reduce solar radiation and strengthen indoor natural ventilation in order to improve indoor environmental comfort.In order to maintain comfortable indoor ventilation effect,the main orientation of buildings should be as far as possible to face the dominant wind direction,and ensure smooth and uniform indoor ventilation channels.Besides,the open area of natural ventilation should meet the requirements and the device should be adjusted conveniently so that residents can open it flexibly.There is a large cooling demand and new air demand for high-rise residential buildings in Lingnan area throughout the year,so,it is necessary to make rational use of the building shading components to reduce the solar radiation heat gain,and to introduce outdoor fresh air into the indoor cooling and supplement the indoor the indoor fresh air in the suitable state,so as to realize the energy and material exchange between the building and surrounding environment,and to create a harmonious building environment with heat generation eco-system and wind eco-system.