Utilization of wavy porous layer, magnetic field and hybrid nanofluid with slot jet impingement on the cooling performance of conductive panel

Abstract

Purpose The purpose of this study is to analyze the impacts of combined utilization of multi-jet impinging cooling of nanofluids with magnetic field and porous layer on the cooling performance, as effective cooling with impinging jets are obtained for various energy systems, including photovoltaic panels, electronic cooling and many other convective heat transfer applications. Design/methodology/approach Finite element method is used to explore the magnetic field effects with the inclusion of porous layer on the cooling performance efficiency of slot nanojet impingement system. Impacts of pertinent parameters such as Reynolds number (Re between 250 and 1,000), strength of magnetic field (Ha between 0 and 30), permeability of the porous layer (Da between 0.001 and 0.1) on the cooling performance for flat and wavy surface configurations are explored. Findings It is observed that the average Nusselt number (Nu) rises by about 17% and 20.4% for flat and wavy configuration while temperature drop of 4 K is obtained when Re is increased to 1,000 from 250. By using magnetic field at the highest strength, the average Nu rises by about 29% and 7% for flat and wavy cases. Porous layer permeability is an effective way of controlling the cooling performance while up to 44.5% variations in the average Nu is obtained by varying its value. An optimization routine is used to achieve the highest cooling rate while the optimum parameter set is obtained as (Re, Ha, Da, γ, sx) = (1,000, 30, 0.07558, 86.28, 2.585) for flat surface and (Re, Ha, Da, γ, sx) = (1,000, 30, 0.07558, 71.85, 2.329) for wavy surface configurations. Originality/value In thermal systems, cooling system design is important for thermal management of various energy systems, including fuel cells, photovoltaic panels, electronic cooling and many others. Impinging jets are considered as effective way of cooling because of its ability to give higher local heat transfer coefficients. This paper offers novel control tools, such as magnetic field, installation of porous layer and hybrid nano-liquid utilization for control of cooling performance with multiple impinging jets.

A numerical study integrated with RSM for hydrothermal and entropy performance of porous jet impingement

“…The results indicated that square jets provided the largest heat transfer when compared with circular jets 23 . Moreover, the various applications and uses of a magnetic field, a wavy porous layer, and a multijet and slot‐impinging system, along with more related studies regarding hybrid/nonhybrid nanofluids, are considered and can be observed here 24–36 …”

“…23 Moreover, the various applications and uses of a magnetic field, a wavy porous layer, and a multijet and slot-impinging system, along with more related studies regarding hybrid/nonhybrid nanofluids, are considered and can be observed here. [24][25][26][27][28][29][30][31][32][33][34][35][36] The aforementioned evaluations indicate that several computational and experimental types of research studies on the forced laminar convection heat transfer of jet impingement on the flat target surface have been carried out. However, less attention is focused on the effect of metal foam across a jet impingement integrated with an ANSYS FLUENT-CFD and response surface methodology (RSM) approach optimization study under the pressure drop effect.…”

Analysis of hydrothermal performance for laminar forced convective flow through a wavy channel with porous blocks

“…Mehta et al (2022b) computationally analyzed the hydrothermal performance for flow through a ribbed wavy channel by varying the number of ribbed and their shape: rectangular, semi-circular and triangular and observed that the rectangular ribbed-wavy channel has a higher performance factor among all the configurations in the regime: 50 # Re # 125. Additionally, numerous recent research investigations relating to heat transfer enhancement have been conducted using the irregular geometries, such as the 60°C hevron plate heat exchanger (Singh and Ghosh, 2022), wavy porous layer (Ouni et al, 2022), wavy surface with finite wall thickness (Borah et al, 2022), wavy channel with linearly varying amplitude (Kumar et al, 2022a(Kumar et al, , 2022b and novel wavy fin-and-circle tube heat exchanger having concave curved vortex generators (Song et al, 2022).…”

Impacts of using discrete and continuous porous layers on the cooling performance of confined multiple slot jet impingement under partially active magnetic field

“…They considered various flow regimes and different HT mechanisms. In Je-Im systems, nanofluid with porous systems have been considered in many studies (Zahmatkesh and Ali Naghedifar, 2017; Ouni et al , 2022; Siavashi et al , 2019; Selimefendigil and Öztop, 2020; Buonomo et al , 2019).…”

“…The thickness of the PL was found to be an influencing parameter on the variation of average Nu while it was varied by about 17% when PL thickness was increased from 0.1 to 0.3. In Je-Im systems, nanofluid with porous systems have been considered in many studies (Zahmatkesh and Ali Naghedifar, 2017;Ouni et al, 2022;Siavashi et al, 2019;Selimefendigil and Öztop, 2020;Buonomo et al, 2019).…”