学术论文

      佛甲草绿化屋面的隔热和降温增湿效应研究——以广州市羊城创意产业园屋顶为例

      Thermal Insulation,Temperature-lowering and Humidity-promotion Effects of Sedum lineare Green Roof:A Case Study of Yangcheng Creative Industrial Park

      摘要:
      在广州市大力推广屋顶绿化的背景下,对比了羊城创意产业园屋顶佛甲草绿化屋面与传统水泥屋面的内表面温度、外表面温度、环境气温和湿度的日变化.结果表明,佛甲草绿化屋面具有良好的隔热性能,与水泥屋面相比,具有内表面温度波幅较小,内表面最高温度较低且出现时间较晚等特点.同时,佛甲草绿化屋面可以有效降低屋顶的外表面温度,提高屋顶环境的湿度,而这种作用在12:00-15:00尤为显著,降温增湿的平均幅度分别达到15.8%和20.6%.为广州市屋顶绿化尤其是粗放型屋顶绿化的推广提供理论依据.
      Abstract:
      The municipal authorities of Guangzhou promote people to build green roof in urban area.In this paper,the roof inner and outer surface temperature,air temperature and humidity were compared between green roof made by Sedum lineare and traditional cement roof.The results showed that the green roof had a good thermal insulation performance,manifested by the features of smaller varying amplitude of inner surface temperature,lower and delaying of maximum inner surface temperature compared to the control.The roof outer surface temperature decreased,and the humidity increased by greening roof.During 12:00-15:00,the temperature decreased by 15.8%,and the humidity increased by 20.6 %.The results would provide a theoretical basis for green roof (especially extensive green roof) promotion in Guangzhou.
      作者: 邓小飞 徐瑾 李丽
      Author: DENG Xiao-fei XU Jin LI Li
      作者单位: 广州大学建筑与城市规划学院,广东广州,510006
      刊 名: 西北林学院学报 ISTICPKU
      年,卷(期): 2017, 32(4)
      分类号: S731.1
      在线出版日期: 2017年8月4日
      基金项目: 广州市绿色建筑低碳技术重点实验室,广东省环保低碳建筑工程技术中心建设项目