摘要
根据部分工况的试验数据,通过均匀设计法和回归方程来得到全部工况的数据,以达到简化定日镜风洞试验、提高试验效率的目的,并在此基础上对定日镜群镜平均风力系数进行研究。首先,根据风洞试验得到群镜13个工况的平均风力系数值;其次,分别确定二元非线性回归方程,利用回归方程计算出全部工况下群镜的平均风力系数回归值;再次,通过对典型工况下平均风力系数进行研究得到其变化规律,并分析出全部工况下群镜平均风力系数整体的变化规律;最后得出群镜平均风力系数与单镜平均风力系数变化规律基本一致等相关结论。
Data of all working conditions can be obtained by uniform design method and regression equations based on the test data of a few working conditions.This method can simplify the wind tunnel test of heliostats and improve the test efficiency.On the same time,the wind load coefficient variation law of heliostat group is obtained.Firstly,13 different working conditions have been selected according to the uniform design method,and 13 different wind load coefficient values are obtained by the wind tunnel test.The binary nonlinear regression equations have been determined by using the Fall back method and the wind load coefficient variation law.Wind load coefficient regression values are calculated by regression equations.Wind load coefficient variation law under typical working conditions are obtained,and then the overall wind load coefficient variation law of heliostat group under all working conditions are analyzed.Finally it is concluded that the wind load coefficient of isolated heliostat and the wind load coefficient of heliostat group are basically consistent.
作者
姜安民
熊奇伟
李正农
董彦辰
王飞飞
Jiang Anmin;Xiong Qiwei;Li Zhengnong;Dong Yanchen;Wang Feifei(Department of Management Engineering,Hunan Urban Construction College,Xiangtan 411100,China;College of Civil Engineering,Central South University of Forestry and Technology,Changsha 410004,China;College of Civil Engineering,Hunan University,Changsha 410082,China;Changsha Institute of Mining Research Co.,Ltd.,Changsha 410012,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2023年第6期330-342,共13页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(52178476,51278190)
湖南建工集团科技计划(2021JGJTK-20)。
关键词
太阳能热发电
定日镜
受力测试
回归分析
风洞试验
均匀设计法
风力系数
solar thermal power generation
heliostat
force measurement
regression analysis
wind tunnel test
uniform design method
wind load coefficient
