摘要
平板集热器盖板透过率受大气降尘量的影响下降,进而影响其集热效果,针对该问题对北京地区自然条件下大气降尘、降水量对0°、40°、90°倾角盖板透过率的变化规律进行为期12个月的实验,总结回归出大气降尘、降水综合作用下不同倾角盖板透过率变化的经验公式,公式计算值与实验值的偏差小于6%。以此为基础建议北京地区的太阳能供暖系统在运行期间逐月清洁,全年运行的太阳能热水系统在每年的12月份~次年5月份逐月清洁,以保证系统的实际使用效果。
Nature dustfall influences on transmittance of flat-plate solar collectors cover and will furtherly influences on its working efficiency.Based on this,12 months experimental studies on flat-plate solar collectors cover transmittance reduction by accumulated dustfall and rainfall was investigated in Beijing.An accuracy of 6%empirical formula with tilt angle was developed,which could be used to make maintenance strategy of solar thermal system operating in Beijing or other areas with similar climate.
作者
王敏
李博佳
徐伟
李先庭
张昕宇
王博渊
Wang Min;Li Bojia;Xu Wei;Li Xianting;Zhang Xinyu;Wang Boyuan(Department of Building Science,Tsinghua University,Beijing100084,China;China Academy of Building Research,Beijing100013,China;National Center for Quality Supervision and Testing of Solar Water Heating Systems(Beijing),Beijing100013,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2018年第11期3053-3059,共7页
Acta Energiae Solaris Sinica
基金
国家重点研发计划项目(2016YFC0700400)
关键词
降尘
降水
太阳集热器
盖板透过率
集热器维护保养
dust
rainfall
solar collector
cover transmittance
maintenance strategy of solar collectors
