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Effect of Hybrid Nanofluids Concentration and Swirling Flow on Jet Impingement Cooling

Nanofluids have become increasingly salient in heat transfer applications due to their promising properties that can be tailored to meet specific needs. The use of nanofluids in jet impingement flows has piqued the interest of numerous researchers owing to the significant heat transfer enhancement,...

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Main Authors: Jen Wai O., Gunnasegaran P., Hasini H.
Other Authors: 57928067800
Format: Article
Published: MDPI 2023
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spelling my.uniten.dspace-267292023-05-29T17:36:23Z Effect of Hybrid Nanofluids Concentration and Swirling Flow on Jet Impingement Cooling Jen Wai O. Gunnasegaran P. Hasini H. 57928067800 35778031300 6507435998 Nanofluids have become increasingly salient in heat transfer applications due to their promising properties that can be tailored to meet specific needs. The use of nanofluids in jet impingement flows has piqued the interest of numerous researchers owing to the significant heat transfer enhancement, which is vital in the technological dependence era in every aspect of life, particularly in engineering applications and industry. The aim of this current work is to investigate the effect of hybrid nanofluids concentration and swirling flow on jet impingement cooling through experimental approach. The hybrid nanofluids are prepared through a two-step method and the characterization process is carried out to study the stability and morphological structure of the sample prepared. The prepared hybrid nanofluids are then used as a cooling agent to evaluate the heat transfer performance of jet impinging system. The experimental investigation compares the performance of swirling impinging jets (SIJs) with conventional impinging jets (CIJs) under various jet-to-plate distance (H/D) ratios and nanofluid concentrations. The effects of adding surfactant on nanofluids are also examined. The heat transfer performance of ZnO/water and CuO/water mono-nanofluids are used as comparison to ZnO-CuO/water hybrid nanofluid. The results show that the thermal performance of ZnO-CuO/water hybrid nanofluid is better than that of the mono-nanofluids. Furthermore, as the mass fraction increases, the heat transfer rates improve. The effect of heat transmission by swirling impinging jets is better than that of conventional impinging jets under similar operating conditions. At H/D = 4, Re = 20,000 and hybrid nanofluid concentration at 0.1% under SIJ is observed to have the highest overall Nusselt number. � 2022 by the authors. Final 2023-05-29T09:36:22Z 2023-05-29T09:36:22Z 2022 Article 10.3390/nano12193258 2-s2.0-85139822217 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85139822217&doi=10.3390%2fnano12193258&partnerID=40&md5=70ba7961fc79baeb46aa751469c602c2 https://irepository.uniten.edu.my/handle/123456789/26729 12 19 3258 All Open Access, Gold, Green MDPI Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
description Nanofluids have become increasingly salient in heat transfer applications due to their promising properties that can be tailored to meet specific needs. The use of nanofluids in jet impingement flows has piqued the interest of numerous researchers owing to the significant heat transfer enhancement, which is vital in the technological dependence era in every aspect of life, particularly in engineering applications and industry. The aim of this current work is to investigate the effect of hybrid nanofluids concentration and swirling flow on jet impingement cooling through experimental approach. The hybrid nanofluids are prepared through a two-step method and the characterization process is carried out to study the stability and morphological structure of the sample prepared. The prepared hybrid nanofluids are then used as a cooling agent to evaluate the heat transfer performance of jet impinging system. The experimental investigation compares the performance of swirling impinging jets (SIJs) with conventional impinging jets (CIJs) under various jet-to-plate distance (H/D) ratios and nanofluid concentrations. The effects of adding surfactant on nanofluids are also examined. The heat transfer performance of ZnO/water and CuO/water mono-nanofluids are used as comparison to ZnO-CuO/water hybrid nanofluid. The results show that the thermal performance of ZnO-CuO/water hybrid nanofluid is better than that of the mono-nanofluids. Furthermore, as the mass fraction increases, the heat transfer rates improve. The effect of heat transmission by swirling impinging jets is better than that of conventional impinging jets under similar operating conditions. At H/D = 4, Re = 20,000 and hybrid nanofluid concentration at 0.1% under SIJ is observed to have the highest overall Nusselt number. � 2022 by the authors.
author2 57928067800
author_facet 57928067800
Jen Wai O.
Gunnasegaran P.
Hasini H.
format Article
author Jen Wai O.
Gunnasegaran P.
Hasini H.
spellingShingle Jen Wai O.
Gunnasegaran P.
Hasini H.
Effect of Hybrid Nanofluids Concentration and Swirling Flow on Jet Impingement Cooling
author_sort Jen Wai O.
title Effect of Hybrid Nanofluids Concentration and Swirling Flow on Jet Impingement Cooling
title_short Effect of Hybrid Nanofluids Concentration and Swirling Flow on Jet Impingement Cooling
title_full Effect of Hybrid Nanofluids Concentration and Swirling Flow on Jet Impingement Cooling
title_fullStr Effect of Hybrid Nanofluids Concentration and Swirling Flow on Jet Impingement Cooling
title_full_unstemmed Effect of Hybrid Nanofluids Concentration and Swirling Flow on Jet Impingement Cooling
title_sort effect of hybrid nanofluids concentration and swirling flow on jet impingement cooling
publisher MDPI
publishDate 2023
_version_ 1806423379534675968
score 13.211869

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