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首页> 外文会议>Nonimaging optics: Efficient design for illumination and solar concentration VIII >A Hemispherical Static Concentrator with Double Aspheric Compensated Lens Array for Continued Collecting Sunlight
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A Hemispherical Static Concentrator with Double Aspheric Compensated Lens Array for Continued Collecting Sunlight

机译：具有双非球面补偿透镜阵列的半球形静态聚光器，用于持续收集阳光

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摘要

Natural light is an inexhaustible and environmentally friendly energy. The solar energy exposed to the earth everyday is about three thousand times to the global energy consumption. Therefore, it would be a considerably large energy saving if we collect and guide the sunlight for lighting. Currently, there are two types of solar concentrators for collecting sunlight purpose, namely, active and static. The former is more efficient, but needs costly active sun-tracking system for supplement; the latter is cheaper, but is limited for certain time slots. In static "systems, a hemispherical concentrator can gather the sunlight with longer time, but the collected flux is not stable and the energy density of optical fiber is lower than the illuminance of sunlight. We, in this paper, propose a hemispherical static concentrator that consists of double aspheric compensated lens array. The double layers of lenses are designed with large tolerance for continued collecting sunlight and the apertures of lenses are larger than optical fiber for increasing the energy density. According to the simulation results, we get uniform distribution of collected flux from 10 a.m. to 4 p.m. that is less than 10% change. Moreover, the energy density of optical fiber is about 50 Lm/cm~2 in summer when the illuminance of sunlight is about 120,000 Lux.
机译：自然光是一种取之不尽，用之不竭的环保能源。每天暴露于地球的太阳能约为全球能源消耗的三千倍。因此，如果我们收集并引导阳光进行照明，将大大节省能源。当前，有两种类型的用于太阳能收集的太阳能集中器，即，主动式和静态式。前者效率更高，但需要昂贵的主动式太阳跟踪系统进行补充；后者比较便宜，但在某些时段内受到限制。在静态“系统中，半球形聚光器可以长时间收集阳光，但是收集到的通量不稳定，并且光纤的能量密度低于阳光的照度。我们在本文中提出一种半球形聚光器，它可以由双非球面补偿透镜阵列组成，双层透镜设计有较大的容差，可以连续收集太阳光，并且透镜的孔径比光纤大，可以增加能量密度，根据仿真结果，可以得到均匀分布的从上午10点到下午4点的光通量变化不超过10％，而且在夏天，当日照度约为120,000 Lux时，光纤的能量密度约为50 Lm / cm〜2。

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  • 来源
  • 会议地点 San Diego CA(US)
  • 作者

    Wei-An Chen; Yi-Yung Chen; Allen Jong-Woei Whang; Chi-Tang Ma;

  • 作者单位

    Photonics System Simulation and Design Laboratory, Department of Electronic Engineering, National Taiwan University of Science and Technology #43, Sec. 4, Keelung Rd., Taipei, 106, Taiwan, R.O.C;

    Photonics System Simulation and Design Laboratory, Department of Electronic Engineering, National Taiwan University of Science and Technology #43, Sec. 4, Keelung Rd., Taipei, 106, Taiwan, R.O.C;

    Photonics System Simulation and Design Laboratory, Department of Electronic Engineering, National Taiwan University of Science and Technology #43, Sec. 4, Keelung Rd., Taipei, 106, Taiwan, R.O.C,Photonics System Simulation and Design Laboratory, Department of Electro-Optical Engineering National Taiwan University of Science and Technology #43, Sec. 4, Keelung Rd., Taipei, 106, Taiwan, R.O.C;

    Photonics System Simulation and Design Laboratory, Department of Electronic Engineering, National Taiwan University of Science and Technology #43, Sec. 4, Keelung Rd., Taipei, 106, Taiwan, R.O.C;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 电气照明;
  • 关键词

    hemispherical static concentrator; aspheric lens; double lens array; compensate; stable indoor illumination;

    机译：半球形静态集中器；非球面镜片双透镜阵列补偿;稳定的室内照明;

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