Optical design of centered-receiver trough-based CPV system

IF 1.5 4区 工程技术 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY
I. Ullah
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引用次数: 1

Abstract

Abstract. Concentrating photovoltaic (CPV) systems require less area of the solar cell while achieving a high efficiency. One of the development factors in the CPV includes the irradiance uniformity over the solar cell. To overcome this issue, a parabolic trough-based optical design is proposed using two nonimaging secondary reflectors: reflective grooves and compound parabolic concentrator (CPC). The reflective grooves convert the line focus to a square shape irradiance distribution, and the CPC is used for redirecting the rays to the receiver. The proposed system delivers the concentrated light over the solar cell having a size of 30  ×  30  mm2 at the center of the trough. The CPV system reduces the number of cells compared with conventional trough-based CPV systems by attaining the concentration ratio of 285. The results indicate that the system has achieved an optical efficiency of 60% at an acceptance angle of ±2  deg. The detailed optical design and raytracing simulation are presented showing that the proposed concentrator can achieve significantly higher overall concentration while maintaining irradiance uniformity.
基于中心接收槽的CPV系统光学设计
摘要聚光光伏(CPV)系统需要较少的太阳能电池面积,同时实现高效率。CPV中的发展因素之一包括太阳能电池上的辐照度均匀性。为了克服这个问题,提出了一种基于抛物面槽的光学设计,使用两个非成像二次反射器:反射槽和复合抛物面聚光器(CPC)。反射槽将线焦点转换为方形辐照度分布,CPC用于将光线重定向到接收器。所提出的系统在尺寸为30的太阳能电池上传输集中的光  ×  30  槽中心的mm2。与传统的基于槽的CPV系统相比,CPV系统通过达到285的浓度比来减少细胞的数量。结果表明,该系统在±2的接受角下实现了60%的光学效率  详细的光学设计和光线跟踪模拟表明,所提出的集中器可以在保持辐照度均匀性的同时实现显著更高的总浓度。
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来源期刊
Journal of Photonics for Energy
Journal of Photonics for Energy MATERIALS SCIENCE, MULTIDISCIPLINARY-OPTICS
CiteScore
3.20
自引率
5.90%
发文量
28
审稿时长
>12 weeks
期刊介绍: The Journal of Photonics for Energy publishes peer-reviewed papers covering fundamental and applied research areas focused on the applications of photonics for renewable energy harvesting, conversion, storage, distribution, monitoring, consumption, and efficient usage.
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