集成方位跟踪太阳能塔式接收器热流密度分布特性研究  

An Investigation of Heat Flow Density Distribution Characteristics of Integrated Azimuthal Tower Receive

作　　者：朱银锋 赵宝剑 崔清源 周军 何友军 ZHU Yinfeng;ZHAO Baojian;CUI Qingyuan;ZHOU Jun;HE Youjun(School of Mechanical and Electrical Engineering,Anhui Jianzhu University,Hefei Anhui 230601,China)

机构地区：[1]安徽建筑大学机械与电气工程学院,安徽合肥230601

出　　处：《长沙大学学报》2024年第2期51-56,70,共7页Journal of Changsha University

基　　金：国家自然科学基金面上项目“环氧树脂增韧剂迁移对超导磁体低温绝缘特性的影响机制”,编号:51877001;安徽省高等学校质量工程项目“CAD/CAE/CAM线下课程”,编号:2020kfkc168;安徽省高等学校质量工程项目“机械设计基础教学团队”,编号:2020jxtd062;校级质量工程项目“精品线下开放课程(CAD/CAE/CAM)”,编号:2020kj12。

摘　　要：为研究接收器与竖直方向夹角和射线集中点的位置对热流密度值与分布的影响,我们以集成方位跟踪太阳能集热实验装置中集热单元为研究对象,基于SolTrace软件和射线追踪技术搭建了定日镜和接收器光学模型。以光学模型为基础,通过改变接收器的角度和位置来改变热流密度值与分布,得到接收器在不同位置时的热流密度值与分布状态。结果表明:接收器上热流密度值在接收器与竖直方向夹角为0°~90°时,随夹角的增大先增后减,夹角为40°时其值达到最大;射线焦点在接收器开口焦点2位置附近时热流密度分布较为均匀,射线可全部进入接收器内,热流密度峰值只有70 kW/m^(2)左右。建模仿真结果对集热单元中接收器安装和位置的调节提供了有益参考。In order to investigate the effect of the angle between the receiver and the vertical direction and the distance from the ray concentration point on the value and distribution of the stream density,taking the collector unit in the integrated azimuthal tracking solar collector experimental setup as the object of study,an optical model of the heliostat and receiver is constructed based on SolTrace software and ray tracing technology.Based on the optical model,the heat flow density value and distribution are changed by the angle and distance of the receiver,and the heat flow density value and distribution are obtained at different positions of the receiver.The results show that the heat flow density value on the receiver increases and then decreases with the increase of the receiver angle from 0°to 90°,and reaches the maximum value at 40°;the ray focus in the receiver opening focus 2 position near the heat flow density distribution is more uniform,the ray can all enter the receiver,and the peak heat flow density is only about 70 kW/m^(2).The modeling simulation results provide a useful reference for the installation and adjustment of the receiver position in the collector unit.

关 键 词：太阳能 SolTrace 接收器 热流分布 

分 类 号：TK513[动力工程及工程热物理—热能工程]