通过被动对流冷却提高光伏系统的效率和寿命

Erik P. Soderholm, Eoin Cotter, D. McCloskey
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引用次数: 0

摘要

太阳能光伏(PV)技术正在快速安装。面板效率和寿命受到高工作温度的负面影响。本研究考察了具有增强后向对流的光伏板的冷却。这是通过简单的铝翅片结构来实现的,通过增加对流换热系数和换热面积来降低操作温度。测量到全天温度下降~10°C,相应的峰值输出功率上升19%。这是用简单的直鳍完成的。换热系数由26.0 W/m2°C提高到36.4 W/m2°C。对于商业应用,主要的改进是使用更少的材料和设计一种外形因素,可以对当前部署的系统进行改造或集成到当前的制造过程中。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Enhancing Efficiency and Lifetime of Photovoltaic Systems Through Passive Convective Cooling
Solar Photovoltaic (PV) technology is being installed at a rapid pace. Panel efficiencies and lifetimes are negatively affected by high operating temperatures. This study examines the cooling of PV panels with enhanced rearward convection. This is achieved through simple Aluminium fin structures which reduce operating temperatures by increasing the convective heat transfer coefficient and the area for heat exchange to occur. A temperature drop of ~10°C was measured throughout the day with a corresponding rise in peak output power of 19%. This was done with simple straight fins. An overall heat transfer coefficient of 26.0 W/m2 °C was increased to 36.4 W/m2 °C for the modified panel. For commercial adoption the main improvements to be made are using less material and designing a form factor which could be retrofitted to currently deployed systems or integrated into current manufacturing processes.
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