INFLUENCE OF TRACKING AND INSTALLATION ACCURACY ON FRESNEL DIRECTIONAL LIGHT TRANSMISSION DEVICE

Wang Ziyuan; Zhao Lianyu; Mo Lianjian; Chen Musheng; Hu Yanxin

doi:10.19912/j.0254-0096.tynxb.2022-1302

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (12) : 113-120. DOI: 10.19912/j.0254-0096.tynxb.2022-1302

INFLUENCE OF TRACKING AND INSTALLATION ACCURACY ON FRESNEL DIRECTIONAL LIGHT TRANSMISSION DEVICE

Wang Ziyuan^1,2, Zhao Lianyu^2,3, Mo Lianjian⁴, Chen Musheng⁴, Hu Yanxin⁴

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Abstract

This paper built an experimental platform of the Fresnel directional light-transmitting device and carried out the research of its heat collection performance. The topic model of the Fresnel directional light-transmitting device was established by using theTracePro optical simulation software to establish the optical model of the Fresnel directional light-transmitting device. After model validation, the effects of tracking error and installation error on optical efficiency were simulated and analyzed. The research results show that the tracking errors of the pitch angle and rotation angle will lead to the reduction of the optical efficiency of the Fresnel directional light transmission device. The error range of the pitch motor should be controlled within ±0.1°, and the error range of the azimuth motor should be controlled within ±0.5°. When there is an installation error between the focal point of the parabolic reflection surface of the directional light transmitter and the focus of the Fresnel lens, the optical efficiency of the Fresnel directional light transmission device generally decreases, and the maximum offset should not exceed 0.1. However, when the offset does not exceed 0.5, the directional light transmitter is shifted downward or the Fresnel lens is shifted upward, which is beneficial to improve the optical efficiency of the orientated light transmitting Fresnel lens solar concentrator （LTF-SC）. The results of this study provide a reference for the research and application of the Fresnel directional light transmission device and the Fresnel central receiving high temperature heat collection system.

Key words

solar energy / optical properties / numerical simulation / tracking error / orientated light transmitting

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Wang Ziyuan, Zhao Lianyu, Mo Lianjian, Chen Musheng, Hu Yanxin. INFLUENCE OF TRACKING AND INSTALLATION ACCURACY ON FRESNEL DIRECTIONAL LIGHT TRANSMISSION DEVICE[J]. Acta Energiae Solaris Sinica. 2023, 44(12): 113-120 https://doi.org/10.19912/j.0254-0096.tynxb.2022-1302

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