Narendran, G.Gnanasekaran, N.Arumuga Perumal, D.A.Moolayadukkam, M.Nagaraja, H.S.2026-02-042023Journal of Thermal Analysis and Calorimetry, 2023, 148, 6, pp. 2547-256513886150https://doi.org/10.1007/s10973-022-11925-0https://idr.nitk.ac.in/handle/123456789/21996The present study reports the implementation of novel nanoplatelets-based vanadium pent oxide (V<inf>2</inf>O<inf>5</inf>)-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. V<inf>2</inf>O<inf>5</inf>-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.Electronic coolingEthanolMicrochannelsMorphologyScanning electron microscopySurface morphologyTransmission electron microscopyXerogelsConjugate coolingElectronic componentElectronics devicesIntegrated micro-channel coolingNanofluidsNanoplateletPulsating flowRectangular microchannelsReynold numberV2O5-xerogelReynolds number