THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

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Mustafa S. Abdullah

,

Adnan M. Hussein

IMPACT OF COIL PITCH ON HEAT TRANSFER ENHANCEMENT OF A TURBULENT FLOW OF α-AL2O3/DW NANOFLUID THROUGH HELICAL COILS

ABSTRACT
The current study experimentally examines the impact of coil pitch on heat transfer behavior and friction factor through helical coils for α- Al2O3/Distilled water nanofluid turbulent flow. These tests were conducted on coils with coil pitches of 20, 35, and 50 mm. The nanoparticle volume fraction was 0.1%. The nanoparticles in a 0.1% volume concentration of nanofluid increased the heat transfer rate and friction factor compared to those of distilled water. Increases in coil pitch also resulted in greater heat transfer efficiency. A correlation between the Reynolds number, the Prandtl number, and the curvature ratio of the coil was also shown to be connected to the Nusselt numbers for the flow of nanofluids within the coils.
KEYWORDS
α-Al2O3/Distilled Water Nanofluid, Coil pitch, curvature ratio, nusselt number, friction factor, Shell and helical coil
PAPER SUBMITTED: 2023-02-27
PAPER REVISED: 2023-05-01
PAPER ACCEPTED: 2023-05-02
PUBLISHED ONLINE: 2023-06-11
DOI REFERENCE: https://doi.org/10.2298/TSCI230227131A
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2023, VOLUME 27, ISSUE Issue 6, PAGES [5005 - 5014]
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Impact of coil pitch on heat transfer enhancement of a turbulent flow of α-Al2O3/DW nanofluid through helical coils

© 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