EFFECT OF DUST MORPHOLOGY AND DENSITY ON PERFORMANCE OF SOLAR PV/T SYSTEM

Zhang Dong; Yu Kai; Jing Jinlong; Liu Chang; An Zhoujian; Li Bingyang

doi:10.19912/j.0254-0096.tynxb.2021-1596

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (5) : 171-177. DOI: 10.19912/j.0254-0096.tynxb.2021-1596

EFFECT OF DUST MORPHOLOGY AND DENSITY ON PERFORMANCE OF SOLAR PV/T SYSTEM

Zhang Dong^1,2, Yu Kai^1,2, Jing Jinlong^2,3, Liu Chang^1,2, An Zhoujian¹, Li Bingyang^1,2

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Abstract

In order to analyze the influence of the dust morphology and density on system performance, the experimental test platform of solar photovoltaic/thermal （PV/T） system is built outdoors. The results show that the photothermal conversion efficiency of solar PV/T system is mainly affected by the morphology of dust, while the photoelectric conversion efficiency is mainly affected by the density of dust. Compared with loose dust, the bonding dust has a greater impact on the photothermal conversion efficiency and comprehensive efficiency. When the density of loose dust changes from 0 to 33.79 g/m², the decline rate of photothermal efficiency is only 2.32% and the decline rate of photoelectric efficiency is 48.65%. In this experiment, the working temperature of photovoltaic cells are 53.99, 52.92, 50.73 and 55.58 ℃, respectively with the increase of the dust density, the trend of the working temperature of photovoltaic cells tends to decrease first and then increase. Therefore, a small amount of dust will not rise the working temperature of the photovoltaic cell and will not affect the normal operation of the solar PV/T system.

Key words

solar collectors / solar modules / collector efficiency / PV/T / dust problems / morphology of dust / density of dust

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Zhang Dong, Yu Kai, Jing Jinlong, Liu Chang, An Zhoujian, Li Bingyang. EFFECT OF DUST MORPHOLOGY AND DENSITY ON PERFORMANCE OF SOLAR PV/T SYSTEM[J]. Acta Energiae Solaris Sinica. 2023, 44(5): 171-177 https://doi.org/10.19912/j.0254-0096.tynxb.2021-1596

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