Assessment of thermo-hydraulic performance of MXene-based nanofluid as coolant in a dimpled channel: a numerical approach

Abstract

The present study numerically investigates the optimization of thermal performance in a dimpled channel using a promising genre of nanofluid which is equipped with the inclusion of two-dimensional (2D) MXene (Ti3C2) nanoparticles to the Soybean Oil. The stream-wise and span-wise variation of the spherical dimples were kept 3.00 and 3.15 over the flow domain with an elongation of 2.5 mm. The detailed evaluation of both the local and global parameters are carried out for 0.025%, 0.075% and 0.125% weight concentrations of MXene. The Reynolds Number are varied from 1000 to 6000 to understand the effect of both the laminar and turbulent flow characteristics in predicting the thermal performance. The simulations are carried out using Finite Volume Method (FVM) under constant heat flux, assuming the mixture of nanoparticles as homogeneous mixture. The results show that with the increase in the weight concentration of nanoparticles, thermal performances of the nanofluid increases. However, it is also identified that with the increase in Reynolds Number, the thermal performance increases under turbulent flow regime. On the contrary, thermal performance was observed to be decreased with the increase in Reynolds Number under laminar flow regime. An astounding improvement of 88.9% thermal performance is found for 0.125% weight concentrations of Soybean based MXene nanofluid which exclusively indicates the credibility of MXene nanofluid as a next generation potential candidate for heat exchanger industries.

Augmentation of heat transfer through passive techniques

“…The TEF values are shown in Figure 8 which 6,50 F I G U R E 6 Heat transfer coefficient with Reynolds number. 51 is computed using Equation (10). From Figure 8, the TEF values are increasing with the increase of shell side mass flow rate in addition to the volume concentration of Al 2 O 3 /water nanofluids.…”

“…F I G U R E 7 Pumping power with Reynolds number. 51 F I G U R E 8 Thermal performance enhancement factor Al 2 O 3 nanofluid. 52…”

“…Figure 6 shows the HTCs of dimple surface using MXene nanofluids of different volume concentrations ranging from 0% to 0.125% which is computed using Equation (1). Ahmed et al 51 noticed that the HTC increases with the increase of Re and volume concentrations of nanofluids. They concluded that the dimpled surface with higher volume concentrations of MXene nanofluid.…”

“…Heat transfer coefficient with Reynolds number 51 . [Color figure can be viewed at wileyonlinelibrary.com]…”

Numerical and experimental study of a shell and tube heat exchanger for different baffles

“…Sohan et al 20 reviewed the synthesis, properties, energy storage, and recent research applications of two‐dimensional (2D) MXene, and suggested that MXene is a future option material for energy storage. Ahmed et al 21 numerically investigated optimization of thermal performance in a dimpled channel using 2D MXene (Ti 3 C 2 ) nanoparticles based on soybean oil, in their study 3 is streamwise and 3.15 is a span‐wise variation of the spherical dimples with 2.5 mm as an elongation by varying mass concentrations of MXene (0.025%, 0.075%, and 0.125%). They observed that the thermal performances of the nanofluid increase with the increase of mass concentration of the coolant fluid.…”