Experimental and Numerical Thermal Analysis of Multi-Layered Microchannel Heat Sink for Concentrating Photovoltaic Application
Experimental and Numerical Thermal Analysis of Multi-Layered Microchannel Heat Sink for Concentrating Photovoltaic Application
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DOI：
10.3390/en12010122
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发表时间：
2019-01-01
期刊：
影响因子：
3.2
通讯作者：
Mallick, Tapas
中科院分区：
文献类型：
--
作者：
Al Siyabi, Idris;Khanna, Sourav;Mallick, Tapas
聚光光伏具有主要的挑战，因为在该过程中升高的高温降低了太阳能电池的效率。在许多其他冷却技术中，多层微通道热沉技术被认为在散热和泵送功率方面更有效。因此，在目前的工作中，多层微通道热沉用于集中光伏冷却。系统的热行为进行了实验和数值研究。结果表明，在30 W/cm（2）的极端热负荷和30 mL/min的传热流体流速下，将层数从1增加到4将热源温度从88.55 ℃降低到73.57 ℃。此外，与具有较高层数的散热器相比，单层MLM散热器遭受热源温度的最高不均匀性。此外，结果表明，将层数从1增加到4将压降从162.79 Pa降低到32.75 Pa。
Concentrating photovoltaic has a major challenge due to the high temperature raised during the process which reduces the efficiency of the solar cell. A multi-layered microchannel heat sink technique is considered more efficient in terms of heat removal and pumping power among many other cooling techniques. Thus, in the current work, multi-layered microchannel heat sink is used for concentrating photovoltaic cooling. The thermal behavior of the system is experimentally and numerically investigated. The results show that in extreme heating load of 30 W/cm(2) with heat transfer fluid flow rate of 30 mL/min, increasing the number of layers from one to four reduces the heat source temperature from 88.55 to 73.57 degrees C. In addition, the single layered MLM heat sink suffers from the highest non-uniformity in the heat source temperature compared to the heat sinks with the higher number of layers. Additionally, the results show that increasing the number of layers from one to four reduces the pressure drop from 162.79 to 32.75 Pa.