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Integrated microchannel cooling for densely packed electronic components using vanadium pentaoxide (V2O5)-xerogel nanoplatelets-based nanofluids
(Springer Science and Business Media B.V., 2023) Narendran, G.; Gnanasekaran, N.; Arumuga Perumal, D.A.; Moolayadukkam, M.; Nagaraja, H.S.
The present study reports the implementation of novel nanoplatelets-based vanadium pent oxide (V2O5)-xerogel for the application of conjugate cooling in densely packed electronic devices. An integrated heat sink is made up of copper with a channel width of 490 µm and is shrink-fitted into aluminium block that acts as a heat spreader. V2O5-xerogel is synthesized by melt quenching process and characterized based on field emission scanning electron microscope, transmission electron microscope, and X-ray diffraction to analyse the surface morphology of the particles. Studies related to the stability of the nanofluids for different concentrations are discussed in this paper. Furthermore, a study on the effect of pulsating flow in microchannel is performed for different flow rates. As a result, a maximum enhancement of 17% in heat transfer coefficient was observed for the concentration of 0.4 mass% with a flow rate of 200 mL min-1 compared to a pure fluid. Finally, the results reveal that the xerogel is a potential working fluid for heat transfer applications involving microscale devices. © 2023, Akadémiai Kiadó, Budapest, Hungary.