Thermal Conductivity Enhancement via Synthesis Produces a New Hybrid Mixture Composed of Copper Oxide and Multi-walled Carbon Nanotube Dispersed in Water: Experimental Characterization and Artificial Neural Network Modeling

Abstract

Nanofluid is a solid-fluid mixture. By using one solid nanoparticle or one fluid, mono-nanofluid (MN) forms, and by using two solid nanoparticles (NPs) or two fluids, hybrid-nanofluid (HN) forms. For this study, for MN, copper oxide (CuO) and for HN, two solids, which are CuO and multi-walled carbon nanotube (MWCNT) were dispersed in base fluid which is water. After nanofluid preparation, thermal conductivity was measured, and the achievements were numerically modeled. After that, XRD-EDX were performed for the phase-structural analysis. Then, FESEM was examined for NPs-microstructural study. Thermal conductivity (TC) of MN and HN were investigated at 0.2 % to 1.0 % volume fractions (Vf) in 25 °C to 50 °C temperature (T) ranges. Thermal conductivity enhancements of 19.16 % and 37.05 % were seen at the utmost Vf and T for mono-nanofluid and hybrid-nanofluid, respectively. New correlations have been presented with R 2 = 0.9, and also Artificial Neural Network (ANN) has been done with R 2 = 0.999. For the presented correlation, 0.86 %, and 0.51 % deviations, and for the trained model, 0.41 % and 0.51 % deviations were estimated for mono-nanofluid and hybrid-nanofluid, respectively. As a final result, by adding MWCNT to CuO-H 2 O mixture, thermal conductivity is raised by 17.89 %, and the hybrid-nanofluid has acceptable heat-transfer capability.

Fabrication of fibrous poly (ɛ‐caprolactone) nano‐fibers containing cerium doped‐bioglasses nanoparticles encapsulated collagen

“…In addition to the positive effect of adding BG into PCL membrane on the bioactivity, cell proliferation and adhesion, the enhanced effect of Ce incorporation into BG structure on the proliferation, differentiation, and mineralization of primary osteoblasts has been reported frequently 20 . To best our knowledge, the evaluation of the effect of incorporation of Ce doped BG nanoparticles on the cytocompatibility and bioactivity of PCL fibrous scaffold has not been a matter of discussions, in recent years 32–40 . In this study, the author loaded collagen microsphere containing BG nanopowder with different content of doped Ce into PCL fibrous scaffolds and their bioactivity and biocompatibility were evaluated in detail.…”

“…20 To best our knowledge, the evaluation of the effect of incorporation of Ce doped BG nanoparticles on the cytocompatibility and bioactivity of PCL fibrous scaffold has not been a matter of discussions, in recent years. [32][33][34][35][36][37][38][39][40] In this study, the author loaded collagen microsphere containing BG nanopowder with different content of doped Ce into PCL fibrous scaffolds and their bioactivity and biocompatibility were evaluated in detail.…”

A Review on Polymeric Wound Dress for the Treatment of Burns and Diabetic Wounds

“…To produce nanofibers, one of the high-voltage power supply electrodes are connected to a polymer, the other solution to the ground or to a conductive collector. [17][18][19][20][21][22][23][24][25] By passing the solution from the inside of the capillary tube, the fluid is drained from the tip of the capillary tube to the collector due to the electric field generated by the high voltage supply between the tip of the copper tube and the collector connected to the earth. Due to the fluid motion, the solvent is evaporated and filaments with a diameter below a micron are produced on the collector.…”

“…19 Other factors such as the extent of tissue damage as well as the location of the laceration. 20 There is a variation in wound healing rates between individuals as well. 21,22 In other words, ulcers can be divided into two categories such as non-infectious wounds in which the wound occur accidentally and accidentally under clean conditions and do not cause an infectious problem for the patient.…”

Free Convection of a Viscous Electrically Conducting Fluid Past a Stretching Surface

“…Further, the development in the said work is obtained by simulating the thermal domains considering Cu-water nanofluid in a nanochannel that is proposed by Asgari et al [21]. Karimipour and his co-workers [22] have analyzed the behavior on the physical properties of thermal conductivity in a byhrid nanofluid composed of Cu and CNT nanopartcles. Cattaneo-Christov heat flux model is proposed by Nadeem et al [23][24][25] in various non-Newtonian fluid considering different geometries.…”