THERMAL SCIENCE

International Scientific Journal

Asif Waheed

,

Ali Imran

,

Shumaila Javeed

,

Dumitru Baleanu

,

Muhammad Zeb

,

Sohail Ahmad

STUDY OF ELECTRO-OSMOTIC NANOFLUID TRANSPORT FOR SCRAPED SURFACE HEAT EXCHANGER WITH HEAT TRANSFER PHENOMENON

ABSTRACT
In this study a novel mathematical model for electroosmotic flow for Cu-water based nanofluid with heat transfer phenomenon is reported for scraped-surface heat exchanger. The flow is initiated due to motion of lower wall of the channel and axial pressure gradient. The flow is modelled with aid of low Reynolds number and lubrication approximation theory. Exact analytical expressions are gathered for axial velocity, and stream functions for various stations of scraped-surface heat exchanger. Physical phenomenon of electro osmotic parameter are investigated on velocity profile, velocity distribution and pressure rise at edge of the blades. It is reported that electro-osmotic parameter mainly works as dragging force, it can be used to control the flow. This controlling mechanism may be helpful in mixing different materials in scraped-surface heat exchanger. Pressure rise at edge of the blades mainly rises below the blades with electro-osmotic, whereas, this profiles is suppressed for region above the blades and between the blades.
KEYWORDS
scraped-surface heat exchanger, electric field, Cu-water nanofluids
PAPER SUBMITTED: 2021-03-12
PAPER REVISED: 2021-03-25
PAPER ACCEPTED: 2021-04-17
PUBLISHED ONLINE: 2021-12-18
DOI REFERENCE: https://doi.org/10.2298/TSCI21S2213W
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2021, VOLUME 25, ISSUE Special issue 2, PAGES [213 - 218]
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Study of electro-osmotic nanofluid transport for scraped surface heat exchanger with heat transfer phenomenon

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence