粗放式屋顶绿化的热惰性  

Thermal Inertia of Extensive Green Roof

作　　者：唐鸣放[1,2] 王东[1,2] 

机构地区：[1]重庆大学建筑城规学院 [2]山地城镇建设与新技术教育部重点实验室,重庆400045

出　　处：《土木建筑与环境工程》2014年第2期84-88,125,共6页Journal of Civil,Architectural & Environment Engineering

基　　金：国家科技支撑计划课题(2013BAJ11B05)

摘　　要：屋顶绿化的热工性能是进行建筑节能工程设计和评价的依据,但目前对屋顶绿化热工性能的研究很少关注热惰性。以一种粗放式屋顶绿化在自然通风状态下连续5个月的对比测量数据为依据,采用统计分析方法研究了屋顶绿化对气候热作用波动的衰减和延迟特性。结果表明,绿化屋顶与裸屋顶相比,对气候热作用波动的平均衰减倍数提高了1倍以上,延迟时间有所减少。Thermal performance of the green roof is an important basis for energy-efficient design and evaluation. However, the current studies on the thermal performance of the green roof seldom involve thermal inertia of the green roof. Based on a long-term experiment of an extensive green roof in natural ventilation state and a five-month ongoing measured data in summer, thermal inertia of the extensive green roof was studied by statistical analysis method. The results show that thermal decay to outdoor climate effect through green roof was increased by more than 100% and delay time of thermal response to outdoor climate on internal surface of the green roof was reduced in comparison with that of the bare roof.

关 键 词：屋顶绿化 内表面温度 热惰性 

分 类 号：TU111.4[建筑科学—建筑理论]