摘要
在实验测定吸热板表面相对太阳辐照度和涂层太阳吸收比的基础上 ,分析研究了圆柱形吸热体具有圆形和半圆形吸收涂层的真空管集热器 ,在不同管中心距下的入射角修正系数随光线入射角变化的规律。指出对于真空管集热器而言 ,其入射角修正系数同时取决于入射高度角和入射方位角 ,并给出入射角修正系数的解析式 ,为进一步研究全日入射角修正系数提供依据。
Based on measuring data of solar irradiance ratio on absorbers with cylindrical shape in evacuated collector tube(ECT)as well as the solar absorptivity changing with the incidence angle on the coating,this paper has analyzed and investigated regular patterns of the incidence angle angle modifier(IAM)changing with the incidence angle at different centre to centre distances of integral collector storage evacuated tube(ICSET)with full circular and semi circular selective coated absorbers The analytical equation of the incidence angle modifier of ICSET has been given It is indicated that the incidence angle modified coefficient was dependent on both the incidence altitude angle and the incidence azimuth angle of the incidence light
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2000年第1期62-68,共7页
Acta Energiae Solaris Sinica
关键词
太阳辐射
储热
真空集热管
入射角修正系数
evacuated collector tube,incidence angle modifier,angle of incidence
