• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Nonimaging optics: efficient design for illumination and solar concentration XIV >Optical Performance Effects of the Misalignment of Non-Imaging Optics Solar Collectors
【24h】

Optical Performance Effects of the Misalignment of Non-Imaging Optics Solar Collectors

机译：非成像光学太阳能集热器未对准的光学性能影响

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The use of non-imaging optics in the application of high temperature solar thermal collectors can be extremely advantageous in eliminating the need to track the sun. The stationary nature of non-imaging optics collectors, commonly called compound parabolic concentrators (CPC's), present a unique design challenge when orienting them to collect sunlight. Many facilities throughout the world that adopt CPCs are not situated to orient the collectors in the ideal angle facing the sun. This East-West misalignment can adversely affect the optical and power performance of the CPC collector. To characterize how this misalignment effects CPCs, reverse raytracing simulations are conducted for varying offset angles of the collectors from solar South. Optical performance is analyzed for an ideal East-West oriented CPC with a 40-degree acceptance angle. Direction cosine plots are used to develop a ratio of annual solar collection by the CPC over the total annual solar input. From these simulations, average annual collector performance is given for offset angles ranging from 0 to 90 degrees for different Earth Latitudes in 10 degree increments.
机译：在高温太阳能集热器的应用中使用非成像光学器件在消除跟踪太阳的需求方面可能会非常有利。非成像光学收集器（通常称为复合抛物面聚光器（CPC））的固定特性在定向收集太阳光时提出了独特的设计挑战。世界上许多采用CPC的设施都无法将收集器定向为面向太阳的理想角度。这种东西方向的不对准会不利地影响CPC收集器的光学和功率性能。为了表征这种未对准如何影响CPC，对来自南方太阳的收集器的偏移角进行了反向射线追踪模拟。针对具有40度接受角的理想的东西方向CPC进行了光学性能分析。方向余弦图用于确定CPC年度太阳能收集量与年度太阳能总输入量的比例。从这些模拟中，可以得出以10度为增量的不同地球纬度的0至90度偏移角的年平均收集器性能。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号