Please use this identifier to cite or link to this item:
Title: Pulsating TiO2/water nanofluids flow and heat transfer in the spirally coiled tubes with different magnetic field directions
Authors: Naphon P.
Wiriyasart S.
Keywords: Friction
Heat convection
Heat transfer
Heat transfer coefficients
Magnetic fields
Convective heat transfer
Different-magnetic fields
Flow and heat transfer
Heat Transfer enhancement
Permanent magnetics
Pulsating flow
Pulsating frequencies
Issue Date: 2017
Abstract: In this study, four different heat transfer enhancement techniques (Pulsating flow, nanofluids, curved tube, and magnetic field effect) are combined to enhance heat transfer in this study. In experiment, eight permanent magnetic bars are arranged with three different magnetic field directions. Effect of pulsating flow frequency, magnetic fields directions on the convective heat transfer characteristics and friction factor of TiO2 nanofluids in the spirally coiled tubes are considered. Due to the thermal boundary disruption and high mixing of nanofluids, the heat transfer rate is promoted. The pulsating frequency and magnetic field have significant effect on the heat transfer enhancement. The Nusselt number from the pulsating flow is higher than that from the continuous flow whereas the magnetic and pulsating flow has slightly increment of the friction factor. © 2017 Elsevier Ltd
ISSN: 179310
Appears in Collections:Scopus 1983-2021

Files in This Item:
There are no files associated with this item.

Items in SWU repository are protected by copyright, with all rights reserved, unless otherwise indicated.