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首页> 外文期刊>International journal of green energy >PRELIMINARY EXPERIMENTAL COMPARISON OF THE PERFORMANCE OF A NOVEL LENS-WALLED COMPOUND PARABOLIC CONCENTRATOR (CPC) WITH THE CONVENTIONAL MIRROR AND SOLID CPCs
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PRELIMINARY EXPERIMENTAL COMPARISON OF THE PERFORMANCE OF A NOVEL LENS-WALLED COMPOUND PARABOLIC CONCENTRATOR (CPC) WITH THE CONVENTIONAL MIRROR AND SOLID CPCs

机译：新型镜壁混合抛物面浓缩器（CPC）与常规镜和固体CPC的性能的初步实验比较

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摘要

A conventional mirror compound parabolic concentrator (CPC) is limited by its half acceptance angle when pursuing a large geometrical concentration ratio with no tracking. A solid CPC, which is made from solid dielectric materials without notches, can achieve a larger half acceptance angle compared with the conventional mirror CPC of the same geometrical concentration ratio, which is attributed to the optical refraction caused by the dielectric material. However, solid CPCs are heavier and costlier. This paper presents a preliminary experiment on a novel lens-walled CPC. An experimental comparison of the conventional mirror and solid CPCs and the lens-walled CPC with the same geometrical concentration ratios of 2.5 is given for different incidence angles. Here the conventional mirror CPC chose the evaporated aluminium coating as the reflection layer, for short conventional CPC. Transparent acrylic was chosen as both the dielectric material and lens material. The three CPCs were all attached to a PV cell Through the output characteristics of the cell, the optical performances of these CPCs can be obtained. The results showed that when the incidence angle was smaller than 35°, the optical efficiency of the lens-walled CPC remained above 46.7% and was more stable against incidence angle changes compared with the conventional CPC. It also weighed and cost less than the solid CPC. Thus, lens-walled CPC adequately combines the advantages of conventional and solid CPCs, and has great potential for use in large-scale practical applications.
机译：当追求大的几何浓度比而没有跟踪时，常规的镜面复合抛物面聚光器（CPC）受其半接收角的限制。与具有相同几何浓度比的常规反射镜CPC相比，由不带槽口的固态介电材料制成的固态CPC可以实现更大的半接收角，这归因于介电材料引起的光学折射。但是，可靠的每次点击费用较重且成本较高。本文介绍了一种新型的带透镜壁式CPC的初步实验。对于不同的入射角，给出了传统镜面CPC和实心CPC以及具有相同几何浓度比2.5的透镜壁CPC的实验比较。在这里，常规反射镜CPC选择蒸发的铝涂层作为反射层，简称常规CPC。选择透明丙烯酸作为电介质材料和透镜材料。这三个CPC均附接到PV电池上。通过该电池的输出特性，可以获得这些CPC的光学性能。结果表明，当入射角小于35°时，与传统的CPC相比，透镜壁式CPC的光学效率保持在46.7％以上，并且对于入射角变化更为稳定。它的重量和成本也低于可靠的每次点击费用。因此，带镜壁的CPC充分结合了常规CPC和实心CPC的优点，并在大规模实际应用中具有巨大的潜力。

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  • 来源
    《International journal of green energy》 |2013年第10期|848-859|共12页
  • 作者

    G. Li; Y. Su; G. Pei; X. Yu; J. Ji; S. Riffat;

  • 作者单位

    Department of Architecture and Built Environment, University of Nottingham, Nottingham, UK,Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei, Anhui, China;

    Department of Architecture and Built Environment, University of Nottingham, Nottingham, UK;

    Department of Architecture and Built Environment, University of Nottingham, Nottingham, UK,Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei, Anhui, China,University of Science and Technology of China, Hefei, Anhui 230026, China;

    Department of Architecture and Built Environment, University of Nottingham, Nottingham, UK;

    Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei, Anhui, China;

    Department of Architecture and Built Environment, University of Nottingham, Nottingham, UK;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Lens-walled; CPC; Solid; Concentration; Optical; Half acceptance angle;

    机译：镜墙;每次点击费用;固体;浓度;光学;半接收角;

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