...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Solar Energy >Parabolic trough collector or linear Fresnel collector? A comparison of optical features including thermal quality based on commercial solutions
【24h】

Parabolic trough collector or linear Fresnel collector? A comparison of optical features including thermal quality based on commercial solutions

机译：抛物线槽式捕集器或线性菲涅尔捕集器？基于商业解决方案的光学特性（包括热质量）的比较

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

Parabolic trough collectors (PTCs) are still today the most mature technology in concentrating solar power. However, linear Fresnel collectors (LFCs) have been identified by many authors as a candidate to reduce the levelized cost of electricity, although with lower efficiencies. Within Fresnel technology, two possibilities appear for the receiver: multitube receiver and secondary reflector receiver. In the present work a developed Monte Carlo Ray Trace code is used in order to compare the energy effectiveness and flux intensity map at the receiver for different days of the year and different orientations in Almeria, Spain, and in Aswan, Egypt. The optical annual energy and exergy efficiencies are also obtained for PTCs and LFCs, with multitube or secondary reflector receiver, where the concentration at each tube is used to weigh the exergy efficiency. It results that the maximum efficiency is obtained by PTCs, while the lowest one corresponds to LFCs with multitube receiver. Also, it is concluded that, while for PTCs NS orientation leads to clearly higher efficiencies, this is not the case for LFCs, where both orientations achieve similar efficiencies even when the solar field has been designed for NS orientation. (C) 2015 Elsevier Ltd. All rights reserved.
机译：抛物槽收集器（PTC）仍然是当今集中太阳能的最成熟技术。但是，尽管效率较低，但许多作者已将线性菲涅耳收集器（LFC）确定为降低平准化电力成本的候选人。在菲涅耳技术中，接收器出现了两种可能性：多管接收器和辅助反射器接收器。在当前的工作中，使用了已开发的蒙特卡洛雷迹线代码，以比较西班牙阿尔梅里亚和埃及阿斯旺一年中不同日期和不同方位的接收器处的能量效率和通量强度图。对于多管或次级反射器接收器，还可以获取PTC和LFC的年度光学能量和火用效率，其中使用每根管子的浓度来衡量火用效率。结果是，通过PTC可获得最高效率，而最低效率则对应于具有多管接收器的LFC。此外，可以得出结论，尽管对于PTC，NS定向会明显提高效率，但对于LFC却不是这样，因为即使将太阳能场设计为用于NS定向，两种定向都可获得相似的效率。 （C）2015 Elsevier Ltd.保留所有权利。

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