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Experimental and numerical thermal analysis of multi-layered microchannel heat sink for concentrating photovoltaic application

Al Siyabi, Idris; Khanna, Sourav; Sundaram, Senthilarasu; Mallick, Tapas


Idris Al Siyabi

Sourav Khanna

Tapas Mallick


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/cm2 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 °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.

Journal Article Type Article
Acceptance Date Dec 24, 2018
Publication Date Dec 30, 2018
Deposit Date Mar 13, 2023
Publicly Available Date Mar 15, 2023
Publisher MDPI
Peer Reviewed Peer Reviewed
Volume 12
Issue 1
Article Number 122
Keywords multi-layered, microchannel, CPV, non-uniform heat source


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