该研究利用自研的镜场效率分析软件,分别计算和比较了交错玉米田、圆周径向交错、Campo型和仿生型4种镜场的年均余弦效率、阴影遮挡效率、大气衰减效率、截断效率和综合效率。计算结果表明,在定日镜数量、尺寸,塔高和镜场可用面积等镜场参数基本相同时,圆周径向交错布置的阴影遮挡损失最小,在远端镜场有明显优势;交错玉米田镜场年均余弦效率最高,在近端镜场有明显优势;仿生型镜场由于易形成较高密度的布置,在中端镜场有一定优势;Campo型镜场各方面均无明显优势。
Abstract
This study used self-developed heliostat field efficiency analysis software to calculate and compare the annual cosine efficiency, shadowing and blocking efficiency, atmospheric attenuation efficiency, interception efficiency, and comprehensive efficiency of 4 types of heliostat fields： radial cornfield, radial staggered, Campo-type, and bio-mimetic type. The calculation results show that when the number and size of heliostats, tower height, and available area of heliostat field are basically equal, the shadowing and blocking loss of radial staggered layout is the smallest, and it has a significant advantage in the remote heliostat field; The annual cosine efficiency of the radial cornfield heliostat field is the highest, and it has a significant advantage in the near field heliostat field; The bio-mimetic heliostat fields have certain advantages in the mid-range due to their tendency to form higher densities; The Campo-type heliostat field has no significant advantages in all aspects.
关键词
塔式太阳能热发电 /
定日镜场 /
光学效率 /
光线追迹 /
太阳位置 /
动态仿真
Key words
solar power tower generation /
heliostat field /
optical efficiency /
ray tracing /
sun position /
dynamic simulation
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基金
陕西省秦创原“科学家+工程师”队伍建设项目（2022KXJ-179）
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