基于光-机耦合的太阳炉聚光性能分析

ANALYSIS OF CONCENTRATING PERFORMANCE OF SOLAR FURNACE BASED ON OPTICAL-STRUCTURAL COUPLING

以点聚焦太阳炉为研究对象,提出光-机耦合角度建立能流密度分布仿真计算模型,对该太阳炉理想条件下、考虑重力和风荷载作用下、实测面型条件下进行能流密度模拟分析,并进行能流密度分布实测研究。研究结果表明:对于太阳炉系统而言,在计算工况下,重力对聚光性能的影响较小,约为5%;安装误差和风致变形对聚光性能影响较大,约为11%和25%。通过理论预测和实验结果对比,提出对软件预测模型中聚光器误差因子进行9 mrad的修正。

Taking the point focus solar furnace as the research object,the optical-structural coupling is proposed,and the simulation calculation model of energy flow density distribution is established.The flux density simulation distribution analysis is carried out under the ideal conditions,considering the action of gravity and wind load and the measured surface condition of the solar furnace,and the measured research of flux density distribution is carried out.The results show that for the solar furnace system,the influence of gravity on the concentrating performance is small,about 5%;The installation error and wind-induced deformation have a great impact on the condensing performance,about 11%and 25%,respectively.Through the comparison between theoretical prediction and experimental results,it is proposed to correct the error factor of concentrator in the software prediction model by 9 mrad.