摘要
基于扩大太阳能利用范围和同时进行路面融雪化冰的需求,在天津某一空地搭建道路太阳能利用小型试验平台,设计数据自动采集程序,对系统进行为期一年的数据监测。结果表明:在夏季,系统吸收太阳能辐射热可降低路面温度2.8℃,沥青路面的平均吸热效率可达37%,平均蓄热效率为17%;在秋季,系统停止运行,储存在地下换热器附近的热量向周围土壤扩散,土壤温度持续下降,到秋季结束,土壤温度下降了4.4℃;在冬季,储存在地下土壤中的热量通过系统向路面放热,可提高路面温度4.1℃,有效防止路面积雪冻冰。
Based on the demands for expanding the scope of solar energy utilization and snow melting on pavement, a small pilot platform for the road-solar energy utilization was built to design automatic data acquisition system for monitoring year-round operating data of system in Tianjin. The results show that the system can absorb solar radiation to reduce road surface temperature by 2.8 ℃ in summer, the 37% and the average heat storage efficiency is 17%. The underground heat exchanger spreads to the surrounding soil, The heat stored in underground soil spreads to pavement average heat absorptivity of asphalt pavement can be up to system doesn＇ t work in autumn, the heat stored near the soil temperature declines by 4.4℃ at the end of the autumn. through 4.1℃ and effectively prevent snow cover and ice over on pavement. the system and increases road surface temperature by
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2015年第2期484-489,共6页
Acta Energiae Solaris Sinica
基金
国家"十二五"科技支撑项目(2013BAJ09B01)
国家环保公益项目(2013467070)
天津市科技支撑项目(12ZCZDSF00100)
关键词
太阳辐射
沥青路面温度
路面吸热效率
系统蓄热效率
地下土壤温度
solar radiation
asphalt pavement temperature
heat absorptivity of pavement
heat storage efficiency of system
underground soil temperature
