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

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

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 °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.

Original languageEnglish
Article number122
JournalEnergies
Volume12
Issue number1
Early online date30 Dec 2018
DOIs
Publication statusPublished - Jan 2019

Keywords

  • CPV
  • microchannel
  • multi-layered
  • non-uniform heat source

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