积尘形态及密度对太阳能PV/T系统的性能影响研究

张东; 俞凯; 景金龙; 刘畅; 安周建; 李秉阳

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

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太阳能学报 ›› 2023, Vol. 44 ›› Issue (5) : 171-177. DOI: 10.19912/j.0254-0096.tynxb.2021-1596

积尘形态及密度对太阳能PV/T系统的性能影响研究

张东^1,2, 俞凯^1,2, 景金龙^2,3, 刘畅^1,2, 安周建¹, 李秉阳^1,2

作者信息 +

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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摘要

在室外搭建太阳能光伏/热（PV/T）系统实验测试平台,研究积尘形态及密度对系统性能的影响。研究结果表明：积尘形态主要影响太阳能PV/T系统的光热效率,积尘密度主要影响系统的光电效率。与松散积尘相比,粘结积尘对系统光热效率及综合效率的影响更大。当松散积尘密度从0变化至33.79 g/m²时,系统的光热效率下降率仅为2.32%,而系统的光电效率下降率高达48.65%。在该文实验中,随着积尘密度的增大,太阳电池的工作温度依次为53.99、52.92、50.73和55.58 ℃,呈先降后增的变化趋势。故少量积尘不会使太阳能PV/T系统中太阳电池的工作温度升高而影响其正常工作。

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.

导出引用

张东, 俞凯, 景金龙, 刘畅, 安周建, 李秉阳. 积尘形态及密度对太阳能PV/T系统的性能影响研究[J]. 太阳能学报. 2023, 44(5): 171-177 https://doi.org/10.19912/j.0254-0096.tynxb.2021-1596

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

中图分类号： TK519

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