PRINCIPLE AND EXPERIMENTAL RESEARCH ON PARABOLIC CONCENTRATOR WITH FIXED REFLECTOR

Yu Lei; Chen Jifeng; Yang Song; Peter Lund; Wang Jun

doi:10.19912/j.0254-0096.tynxb.2025-0326

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (7) : 518-529. DOI: 10.19912/j.0254-0096.tynxb.2025-0326

PRINCIPLE AND EXPERIMENTAL RESEARCH ON PARABOLIC CONCENTRATOR WITH FIXED REFLECTOR

Yu Lei¹, Chen Jifeng², Yang Song³, Peter Lund^1,4, Wang Jun¹

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Abstract

This paper presents a novel conceptual design of solar concentrator, the fixed reflector parabolic concentrator, which consists of a fixed reflector with an asymmetric parabolic profile and a movable receiver. Compared with traditional linear concentrators （parabolic trough and linear Fresnel）, it offers the advantages of fewer moving parts, lower construction cost and higher land utilization rate. Firstly, the relationship between the deviation angle and the concentration characteristics was studied through optical simulation and experiments. Then, the distribution characteristics of the deviation angle were investigated by establishing a mathematical model. The results show that for different geographical locations, when the concentrator is placed in the east-west axis direction and the parabolic inclination angle is set to the local latitude, the focal spot is the smallest and the overall concentration ratio ranges from 8 to 22. This paper provides an initial validation of the feasibility of the novel linear solar concentrator for solar concentration under varying temporal and positional conditions.

Key words

solar energy / linear concentrators / Monte Carlo methods / geometrical optics / receiver / reflector / deviation angle

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Yu Lei, Chen Jifeng, Yang Song, Peter Lund, Wang Jun. PRINCIPLE AND EXPERIMENTAL RESEARCH ON PARABOLIC CONCENTRATOR WITH FIXED REFLECTOR[J]. Acta Energiae Solaris Sinica. 2026, 47(7): 518-529 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0326

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