STUDY ON CONDENSING PERFORMANCE OF LFR SYSTEM BASED ON MIRROR DUST ACCUMULATION

Zhao Xiaoyan, Yan Suying, Xing Yaodong, Zhang Weiwei, Fu Jiating, Zhao Ning

Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (5) : 206-212.

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (5) : 206-212. DOI: 10.19912/j.0254-0096.tynxb.2021-1360

STUDY ON CONDENSING PERFORMANCE OF LFR SYSTEM BASED ON MIRROR DUST ACCUMULATION

  • Zhao Xiaoyan1,2, Yan Suying1,2, Xing Yaodong1, Zhang Weiwei1,2, Fu Jiating1, Zhao Ning1
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Abstract

Aiming at the problem of light loss caused by mirror dust accumulation in LFR system, a three-dimensional model of mirror dust accumulation is established, and the optical simulation is carried out by Monte Carlo ray tracing method. The influence of dust particle shape, particle size and dust density on light path, energy flux density and concentrating efficiency is studied. The reliability of the simulation method is verified by LFR energy flux density test results. The results show that: Spherical particles have a convergence effect on the light, and the light incident to the square particles will be absorbed completely. When the dust density of mirror increases by 1 g/m2, the average energy flux density around the collector tube will decrease by 625.17 W/m2, and the concentrating efficiency of the system will decrease by 5.53%. Moreover, the smaller the particle size of the dust particles on the mirror, the greater the energy flux density around the collector tube decreases. The variation trend of the energy flux density under different dust densities from optical simulation and experimental test is consistent, and the error between them is 9.6%.

Key words

solar concentrators / mirror dust / optical design / CCD cameras / LFR concentrating system

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Zhao Xiaoyan, Yan Suying, Xing Yaodong, Zhang Weiwei, Fu Jiating, Zhao Ning. STUDY ON CONDENSING PERFORMANCE OF LFR SYSTEM BASED ON MIRROR DUST ACCUMULATION[J]. Acta Energiae Solaris Sinica. 2022, 43(5): 206-212 https://doi.org/10.19912/j.0254-0096.tynxb.2021-1360

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