Model construction and performance analysis for asymmetric compound parabolic concentrator with circular absorber

Xueyan Zhang, Shuoxun Jiang, Ziming Lin, Qinghua Gui and Fei Chen

Energy, 2023, vol. 267, issue C

Abstract: Solar CPC (Compound Parabolic Concentrator, CPC) has advantages of static concentration, easy construction and wide application. In this paper, the A-CPC (Asymmetric Compound Parabolic Concentrator, A-CPC) with circular absorber operating at horizontal condition was studied. Based on the edge ray principle, the mathematical model of A-CPC with circular absorber was theoretically constructed, and the concentration performance was verified by the visual experiment. The study found that the average optical efficiency of A-CPC is 42.69% within the whole incidence angle, which is 9.2% higher than the S-CPC (Standard CPC, S-CPC) with the same specification. The results also showed that the maximum acceptable angle and the annual average daily direct radiation collection time of A-CPC reached 69° and 10.82 h, indicating the A-CPC has stronger adaptability to weather conditions. The total annual radiation collection amount of A-CPC, which is 3670 MJ/m2, has surpassed that of S-CPC with 2880 MJ/m2 by 27.4%. Economic analysis reveals that A-CPC can effectively save the total cost and has more friendly potential in application to engineering.

Keywords: Solar energy; CPC (Compound parabolic concentrator); Asymmetry; Optical efficiency; Radiation collection (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:267:y:2023:i:c:s0360544222034843

DOI: 10.1016/j.energy.2022.126597

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