Results 191 to 200 of about 12,794 (266)

Effect of electromagnetic induction on the heat transmission in engine oil-based hybrid nano and ferrofluids: A nanotechnology application

Proceedings of the Institution of mechanical engineers. Part E, journal of process mechanical engineering, 2022
This analysis investigates the control of electromagnetic induction over the flow and heat transmission in shear-thickening hybrid nano and ferrofluids for cooling/heating applications. The stream is time-free and not turbulent. The leading equations are
K. Anantha Kumar, N. Sandeep, S. Samrat, G. Ashwinkumar   +3 more
semanticscholar   +1 more source

Advanced biomedical applications of iron oxide nanostructures based ferrofluids

Nanotechnology, 2021
Ferrofluids or magnetic nanofluids are highly stable colloidal suspensions of magnetic nanoparticles (NPs) dispersed into various base fluids. These stable ferrofluids possess high thermal conductivity, improved thermo-physical properties, higher ...
Mohd Imran, A. Affandi, Md. Mottahir Alam, Afzal Khan, A. Khan   +4 more
semanticscholar   +1 more source

Analyses of thermal performance and pressure drop in a plate heat exchanger filled with ferrofluids under a magnetic field

Fuel, 2021
This paper experimentally investigates the effect of various magnetic fields on the performance of a plate heat exchanger filled with ferrofluids. Spherical nanoparticles Fe3O4 with an average diameter of 20 nm are dispersed into DI-water to synthesize ...
D. Zheng, Jiawang Yang, Jin Wang, S. Kabelac, B. Sundén   +4 more
semanticscholar   +1 more source

A Magnetic Field Sensor Based on SPR-POF Platforms and Ferrofluids

IEEE Transactions on Instrumentation and Measurement, 2021
We present a novel methodology for magnetic field sensing by exploiting surface plasmon resonance (SPR) sensors based on D-shaped plastic optical fiber (POF) and magnetic fluids (MFs).
N. Cennamo, F. Arcadio, V. Marletta, S. Baglio, L. Zeni, B. Andò   +5 more
semanticscholar   +1 more source

The use of ferrofluids in micromechanics

Sensors and Actuators A: Physical, 2000
An introduction to ferrofluids in MEMS applications is presented. Ferrofluids are fluids with magnetic properties. By applying a magnetic field, the balance of forces within the ferrofluid is varied so that the magnetic fluid can move or apply pressure ...
Raquel Perez-Castillejos, J A Plaza, J Esteve   +2 more
exaly   +2 more sources

Ferrofluids

2023
Abstract An explanation of the structure and components in a ferrofluid is presented together with a simple preparation process to produce these magnetic liquids. Unusual phenomena such as the surface and labyrinthine instabilities are then described.
K. O’Grady, G. Vallejo Fernandez, A. Hirohata   +2 more
openaire   +1 more source

Syntheses of ferrofluids using polyethylene glycol (PEG) coated magnetite (Fe3O4), citric acid, and water as the working liquid in a cylindrical heat pipe

, 2021
Ferrofluids were synthesized from magnetite (Fe3O4) nanoparticles coated with three different base fluids: polyethylene glycol (PEG), citric acid (CA), and water. Each of the fluids act as the working liquid in a cylindrical heat pipe.
N. S. Asri, A. Tetuko, Agung Esmawan, M. Addin, E. A. Setiadi, W. B. Putri, M. Ginting, P. Sebayang   +7 more
semanticscholar   +1 more source

Shape-Reconfigurable Ferrofluids

Nano Letters, 2022
Ferrofluids (FFs) can adapt their shape to a magnetic field. However, they cannot maintain their shape when the magnetic field is removed. Here, with a magneto-responsive and reconfigurable interfacial self-assembly (MRRIS) process, we show that FFs can be structured by a magnetic field and maintain their shape, like solids, after removing the magnetic
Sai Zhao, Jun-Yan Zhang, Yuchen Fu, Shipei Zhu, Ho Cheung Shum, Xubo Liu, Zhaoyu Wang, Ruquan Ye, Ben Zhong Tang, Thomas P. Russell, Yu Chai   +10 more
openaire   +3 more sources

Ferrofluids-based microextraction systems to process organic and inorganic targets: The state-of-the-art advances and applications

, 2021
The advancement of smart materials has substantially affected the sample preparation techniques. Recently, different smart materials like carbon-based materials, magnetic nanoparticles, and ferrofluids have been used to separate analytes from different ...
Reyhaneh Nayebi, F. Shemirani
semanticscholar   +1 more source

Heat transfer of ferrofluids with magnetoviscous effects

, 2021
Ferrofluids have more excellent thermal performance than their carrier liquids, but the magnetoviscous effects under magnetic fields will increase the flow resistance to weaken this enhancement.
F. Jiao, Qian Li, Yanying Jiao, Yongqing He   +3 more
semanticscholar   +1 more source