Influence of magnetic field on the thermal conductivity of the water based mixed Fe 3 O 4 /CuO nanofluid

Ebrahimi, Samaneh; Saghravani, Seyed Fazlolah

doi:10.1016/j.jmmm.2017.05.090

Cited by 42 publications

(11 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…8 displays TC by temperature in varied Vf. TC growth can be seen by the rise in Vf and temperature [33]. The outcome trend for Vf and temperature was not similar [34].…”

Section: 221mentioning

confidence: 94%

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

et al. 2020

View full text Add to dashboard Cite

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.

show abstract

“…8 displays TC by temperature in varied Vf. TC growth can be seen by the rise in Vf and temperature [33]. The outcome trend for Vf and temperature was not similar [34].…”

Section: 221mentioning

confidence: 94%

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

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Ebrahimi and Saghravani [ 60 ] investigated the effect of a magnetic field on the thermal conductivity of water based Fe 3 O 4 /CuO hybrid nanofluid using THW technique. A metallic Ag wire was used as hot wire and magnetic fields of 0.1 and 0.2 T were applied to the samples during the measurements.…”

Section: Techniques For Thermal Conductivity Measurements Of Nfsmentioning

confidence: 99%

“…A metallic Ag wire was used as hot wire and magnetic fields of 0.1 and 0.2 T were applied to the samples during the measurements. The results showed that an increase in the particle concentration and magnetic field improved the thermal conductivity of the nanofluid [ 60 ].…”

Section: Techniques For Thermal Conductivity Measurements Of Nfsmentioning

confidence: 99%

A Review of the Advances and Challenges in Measuring the Thermal Conductivity of Nanofluids

et al. 2022

View full text Add to dashboard Cite

Fluids containing colloidal suspensions of nanometer-sized particles (nanofluids) have been extensively investigated in recent decades with promising results. Driven by the increase in the thermal conductivity of these new thermofluids, this topic has been growing in order to improve the thermal capacity of a series of applications in the thermal area. However, when it comes to measure nanofluids (NFs) thermal conductivity, experimental results need to be carefully analyzed. Hence, in this review work, the main traditional and new techniques used to measure thermal conductivity of the NFs are presented and analyzed. Moreover, the fundamental parameters that affect the measurements of the NFs’ thermal conductivity, such as, temperature, concentration, preparation of NFs, characteristics and thermophysical properties of nanoparticles, are also discussed. In this review, the experimental methods are compared with the theoretical methods and, also, a comparison between experimental methods are made. Finally, it is expected that this review will provide a guidance to researchers interested in implementing and developing the most appropriate experimental protocol, with the aim of increasing the level of reliability of the equipment used to measure the NFs thermal conductivity.

show abstract

“…Se ha encontrado que los iones Cu 2+ se localizan principalmente en el sitio octaédrico B de la estructura tipo espinela [17,18] y que la magnetización de saturación decrece con el incremento en el contenido de Cu [19]. Se han realizado estudios en nanofluidos de F e 3 O 4 /CuO, para determinar la influencia de un campo magnético en la conductividad térmica del compuesto obtenido para posibles aplicaciones biomédicas [20].…”

Section: +unclassified

CARACTERIZACIÓN MAGNÉTICA E HIPERFINA DE LA TRANSFORMACIÓN TÉRMICA CuO - Fe2O3 A Fe3O4

Betancur¹,

Restrepo²,

Fernández³

et al. 2018

Momento

View full text Add to dashboard Cite

ResumenSe presenta un estudio magnético acerca de la transformación térmica de hematita dopada con CuO (F e 2 O 3 + CuO). El tratamiento térmico se realizó a una temperatura de 375±1 o C, en una atmósfera controlada compuesta por 20 % de hidrógeno y 80 % de nitrógeno. Las muestras fueron caracterizadas por espectroscopía Mössbauer a temperatura ambiente, magnetización en función de la temperatura y ciclos de histéresis a 10K. Los resultados sugieren que los campos hiperfinos y los anchos de línea A y B permanecen esencialmente constantes con el aumento de la concentración de CuO, mientras que a la vez surge una componente paramagnética, lo cual es indicativo de la aparición de un precipitado o nueva fase de F e − Cu, i.e. no hay una incorporación efectiva del cobre en la estructura de la magnetita. La magnetización de saturación cae aproximadamente de 87 emu/g a 78 emu/g, consistente con la presencia de dicha fase paramagnética.

show abstract

Influence of magnetic field on the thermal conductivity of the water based mixed Fe 3 O 4 /CuO nanofluid

Cited by 42 publications

References 35 publications

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

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

A Review of the Advances and Challenges in Measuring the Thermal Conductivity of Nanofluids

CARACTERIZACIÓN MAGNÉTICA E HIPERFINA DE LA TRANSFORMACIÓN TÉRMICA CuO - Fe2O3 A Fe3O4

Contact Info

Product

Resources

About