Thermal analysis of a multi-layer microchannel heat sink for cooling concentrator photovoltaic (CPV) cells
Thermal analysis of a multi-layer microchannel heat sink for cooling concentrator photovoltaic (CPV) cells
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用于冷却聚光光伏 (CPV) 电池的多层微通道散热器的热分析
DOI：
10.1063/1.5001434
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
S. Sundaram
中科院分区：
文献类型：
--
作者：
I. A. Siyabi;K. Shanks;T. Mallick;S. Sundaram
聚光光伏（CPV）技术越来越多地被认为是太阳能发电的替代选择。然而，增加聚光比会由于电池温度的增加而降低系统输出功率。采用数值分析方法对多层微通道热沉结构的性能进行了评估。本文采用三维不可压层流定常流动模型进行数值求解。耦合了太阳能电池的电和热模型来计算太阳能电池的温度和效率。热阻，太阳能电池温度和泵浦功率用于系统效率的评估。微通道层数的增加在热阻、太阳能电池温度均匀性和压降方面表现出最佳的整体性能。沟道高度和宽度对太阳能电池的最高温度没有影响。然而，增加通道高度导致减少…
Concentrator Photovoltaic (CPV) technology is increasingly being considered as an alternative option for solar electricity generation. However, increasing the light concentration ratio could decrease the system output power due to the increase in the temperature of the cells. The performance of a multi-layer microchannel heat sink configuration was evaluated using numerical analysis. In this analysis, three dimensional incompressible laminar steady flow model was solved numerically. An electrical and thermal solar cell model was coupled for solar cell temperature and efficiency calculations. Thermal resistance, solar cell temperature and pumping power were used for the system efficiency evaluation. An increase in the number of microchannel layers exhibited the best overall performance in terms of the thermal resistance, solar cell temperature uniformity and pressure drop. The channel height and width has no effect on the solar cell maximum temperature. However, increasing channel height leads to a reducti...