Experimental study on sunlight absorption characteristics of Au-CuS blended nanofluids
Experimental study on sunlight absorption characteristics of Au-CuS blended nanofluids
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DOI：
10.1080/15567036.2019.1576078
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发表时间：
2019-02
期刊：
影响因子：
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通讯作者：
Qian Du;Junjie Xu;Zhiyan Cheng;Jianmin Gao
中科院分区：
文献类型：
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作者：
Qian Du;Junjie Xu;Zhiyan Cheng;Jianmin Gao
摘要将纳米流体应用于直接吸收式太阳能集热器的研究代表了解决传统太阳能集热系统热损失高问题的一种有前景的方法。本工作合成了Au、CuS和Au-CuS共混纳米粒子，并对其太阳能光热转换性能进行了实验研究。通过对实验结果的分析可知，温度和光热转换效率随着光强和光强的增加而显著提高。我们的工作发现，混合不同的NP以匹配太阳光谱强度可以制备用于太阳能光热转换的工作流体，而不是增加相同NP的体积分数。当Au-CuS混合纳米粒子的浓度比为4：6时，转换效率最高，达到26.04%。
ABSTRACT Research on the application of nano-fluids into the direct absorption solar collector represents a prospective approach to solving the problem of high thermal losses of traditional solar collection systems. In this work, Au, CuS and Au-CuS blended Nanoparticles (NPs) were synthesized and the solar photo-thermal conversion performance of them was studied in an experimental investigation. According to the analysis of the results of the experiment, we knew that the temperature and photo-thermal conversion efficiency rised markedly as the light intensity and concentration increase. Our work found that mixing different NPs to match the solar spectral intensity can prepare working fluids for solar photo-thermal conversion instead of increasing the volume fraction of the same NP. When the concentration ratio of Au-CuS blended nanoparticles is 4:6, the conversion efficiency is the highest, reaching 26.04%.