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首页> 外文期刊>Energy Conversion & Management >Heat transfer enhancement in a PV cell using Boehmite nanofluid
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Heat transfer enhancement in a PV cell using Boehmite nanofluid

机译：使用勃姆石纳米流体增强PV电池的传热

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摘要

Experiments were conducted to investigate the cooling performance of channels by water-based nanofluids containing small concentrations of Boehmite (A100H-xH_2O) for the PV cell. The channels were fabricated in two different configurations as straight and helical. The straight channel consists of 23 parallel rectangular channels with a hydraulic diameter of 4.1 mm, a length of 24.5 cm, a width of 5 mm and a depth of 3.5 mm. For the helical configuration the plate was divided into four symmetrical sections which, each part contains a helical channel with a width of 5 mm, a depth of 3.5 mm and a hydraulic diameter of 4.1 mm. The nanofluid cooling performance was assessed from the results obtained for the average temperature and electrical output of the PV cell. Results showed that the nanofluid perform better than water and caused higher decrease in the average PV cell temperature. They were about 39.70% and 53.76% for 0.1 wt.% (the best case) at flow rate of 80 ml/min for the helical and straight channel, respectively. Moreover, the highest decrease of average temperature relative to the reference temperature was observed for 0.1 wt.% nanofluid concentration in both channels. This led to the highest electrical efficiency about 20.57% and 37.67% for the straight and helical channel, respectively. Furthermore, power-hydraulics performance was defined to compare the performance of the studied channels. The results showed that the helical channel works in more efficient way compared with the straight one.
机译：进行实验以研究含有少量勃姆石（A100H-xH_2O）的水基纳米流体对PV电池的通道的冷却性能。通道以直线和螺旋两种不同的构造制成。直通道由23个平行的矩形通道组成，水力直径为4.1毫米，长度为24.5厘米，宽度为5毫米，深度为3.5毫米。对于螺旋结构，将板分成四个对称部分，每个部分包含一个宽度为5毫米，深度为3.5毫米，水力直径为4.1毫米的螺旋形通道。从获得的PV电池平均温度和电输出结果评估纳米流体的冷却性能。结果表明，纳米流体的性能优于水，并且导致平均PV电池温度的下降幅度更大。螺旋通道和直通道的流速分别为80 ml / min时，对于0.1 wt。％（最佳情况），它们分别约为39.70％和53.76％。此外，对于两个通道中0.1wt。％的纳米流体浓度，观察到平均温度相对于参考温度的最高降低。这导致直通道和螺旋通道的最高电效率分别约为20.57％和37.67％。此外，定义了动力液压性能以比较所研究通道的性能。结果表明，与直通道相比，螺旋通道的工作效率更高。

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  • 来源
    《Energy Conversion & Management》 |2014年第10期|275-285|共11页
  • 作者

    Nooshin Karami; Masoud Rahimi;

  • 作者单位

    CFD Research Center, Chemical Engineering Department, Razi University, Kermanshah, Iran;

    CFD Research Center, Chemical Engineering Department, Razi University, Kermanshah, Iran, Chemical Engineering Department, Razi University, Taghe Bostan, Kermanshah, Iran;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Cooling; Nanofluid; Channel; Photovoltaic cell; Boehmite nanoparticles;

    机译：冷却;纳米流体渠道;光伏电池勃姆石纳米颗粒;

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