Open AccessHydrothermal performance evaluation of super hydrophobic square pin fin mini channel heat sink
Author(s) -
Fazle Hadi,
Hafız Muhammad Ali
Publication year - 2022
Publication title -
thermal science/thermal science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.339
H-Index - 43
eISSN - 2334-7163
pISSN - 0354-9836
DOI - 10.2298/tsci210901009h
Subject(s) - pressure drop , materials science , heat sink , heat transfer , nusselt number , distilled water , fin , mechanics , reynolds number , heat transfer enhancement , heat transfer coefficient , thermodynamics , composite material , physics , turbulence
Efficient heat removal with less pressure drop is the focal point of research work in the field of thermal management systems. This research work is aimed to analyze pin fin (inline) mini channel heat sink with super hydrophobic coatings. SiO2 aqueous nanofluids with 0.01% and 0.02% volumetric concentration are used as heat transfer fluid. Data is attained at steady state with power input of40 watt, 55 watt and 70 watt, flow rate of 300 to 700 ml/min and Reynolds number ranging from 400 to 1230. Test rig is authenticated by matching the data of distilled water for simple pin fin heat sink with the theoretical model of Tullius which matched the data well. Super hydrophobic mini channel heat sink performed better with 25.23%, 21.8%, and 23.38% augmentation in Nusselt number and 33.19%, 30.5%, 31.1% reduction in pressure drop for distilled water, SiO2 (0.01%) and SiO2 (0.02%) respectivelyas compared to the conventional pin fin mini channel heat sink. The nutshell of this experimental work is magnification in heat transfer with reduction in pressure drop.