Effect of surfactants on the convective heat transfer and pressure drop characteristics of ZnO/DIW nanofluids: An experimental study
<p>The advancement of nanotechnology has demonstrated the ability of metal-oxide-based nanofluids (NFs) to produce high heat flux in microscale thermal applications. Convective heat transfer (HTC) and flow characteristics (pressure drop (ΔP) and friction factor (f)) of aqueous ZnO NFs' wi...
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2023
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| _version_ | 1864513529505120256 |
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| author | Adnan Qamar (14421759) |
| author2 | Rabia Shaukat (17820995) Shahid Imran (7207316) Muhammad Farooq (186443) Muhammad Amjad (6613673) Zahid Anwar (692904) Hassan Ali (3348749) Muhammad Farhan (4454434) M.A. Mujtaba (17430954) Theodosios Korakianitis (17820998) M.A. Kalam (17430951) Fares Almomani (12585685) |
| author2_role | author author author author author author author author author author author |
| author_facet | Adnan Qamar (14421759) Rabia Shaukat (17820995) Shahid Imran (7207316) Muhammad Farooq (186443) Muhammad Amjad (6613673) Zahid Anwar (692904) Hassan Ali (3348749) Muhammad Farhan (4454434) M.A. Mujtaba (17430954) Theodosios Korakianitis (17820998) M.A. Kalam (17430951) Fares Almomani (12585685) |
| author_role | author |
| dc.creator.none.fl_str_mv | Adnan Qamar (14421759) Rabia Shaukat (17820995) Shahid Imran (7207316) Muhammad Farooq (186443) Muhammad Amjad (6613673) Zahid Anwar (692904) Hassan Ali (3348749) Muhammad Farhan (4454434) M.A. Mujtaba (17430954) Theodosios Korakianitis (17820998) M.A. Kalam (17430951) Fares Almomani (12585685) |
| dc.date.none.fl_str_mv | 2023-02-01T00:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.csite.2023.102716 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Effect_of_surfactants_on_the_convective_heat_transfer_and_pressure_drop_characteristics_of_ZnO_DIW_nanofluids_An_experimental_study/25036397 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Chemical engineering Fluid mechanics and thermal engineering Nanotechnology Friction factor Pressure drop Heat transfer coefficient Mini tube Nanofluids Nanoparticles Reynolds number Dispersion stability Stabilising agents |
| dc.title.none.fl_str_mv | Effect of surfactants on the convective heat transfer and pressure drop characteristics of ZnO/DIW nanofluids: An experimental study |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p>The advancement of nanotechnology has demonstrated the ability of metal-oxide-based nanofluids (NFs) to produce high heat flux in microscale thermal applications. Convective heat transfer (HTC) and flow characteristics (pressure drop (ΔP) and friction factor (f)) of aqueous ZnO NFs' within a circular mini tube (D i = 1.0 mm, L = 330 mm) were analyzed. Experiments were carried out under steady-state and varying flow rates using 0.012–0.048 wt % of NFs and sodium hexametaphosphate (SHMP) and acetylacetone (ACAC) as surfactants (SFs). Laminar flow and constant wall heat flux conditions were used to assess NFs heat transfer properties, ΔP and f. The viscosity (VC) and thermal conductivity (TC) of NFs exhibited a strong dependence on the operating temperature and NFs concentration. VC and TC increased by increasing the NFs concentration and decreased by increasing the operating temperature. Maximum VC and TC enhancement of 16.75% and 23.70% were achieved for SHMP-stabilised NFs, respectively. The average HTC increased by increasing NFs loading and flow rate, with HTCmax of 17.0% noticed for ACAC-stabilised NFs. The ΔPmax and f max were 16.0% and 12.0%, respectively. Experimental and theoretical results showed a maximum deviation of ±7.0% and ±4.0%, respectively.</p><h2>Other Information</h2> <p> Published in: Case Studies in Thermal Engineering<br> License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.csite.2023.102716" target="_blank">https://dx.doi.org/10.1016/j.csite.2023.102716</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_ac40af5a612cb782e24719761cc229f7 |
| identifier_str_mv | 10.1016/j.csite.2023.102716 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/25036397 |
| publishDate | 2023 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Effect of surfactants on the convective heat transfer and pressure drop characteristics of ZnO/DIW nanofluids: An experimental studyAdnan Qamar (14421759)Rabia Shaukat (17820995)Shahid Imran (7207316)Muhammad Farooq (186443)Muhammad Amjad (6613673)Zahid Anwar (692904)Hassan Ali (3348749)Muhammad Farhan (4454434)M.A. Mujtaba (17430954)Theodosios Korakianitis (17820998)M.A. Kalam (17430951)Fares Almomani (12585685)EngineeringChemical engineeringFluid mechanics and thermal engineeringNanotechnologyFriction factorPressure dropHeat transfer coefficientMini tubeNanofluidsNanoparticlesReynolds numberDispersion stabilityStabilising agents<p>The advancement of nanotechnology has demonstrated the ability of metal-oxide-based nanofluids (NFs) to produce high heat flux in microscale thermal applications. Convective heat transfer (HTC) and flow characteristics (pressure drop (ΔP) and friction factor (f)) of aqueous ZnO NFs' within a circular mini tube (D i = 1.0 mm, L = 330 mm) were analyzed. Experiments were carried out under steady-state and varying flow rates using 0.012–0.048 wt % of NFs and sodium hexametaphosphate (SHMP) and acetylacetone (ACAC) as surfactants (SFs). Laminar flow and constant wall heat flux conditions were used to assess NFs heat transfer properties, ΔP and f. The viscosity (VC) and thermal conductivity (TC) of NFs exhibited a strong dependence on the operating temperature and NFs concentration. VC and TC increased by increasing the NFs concentration and decreased by increasing the operating temperature. Maximum VC and TC enhancement of 16.75% and 23.70% were achieved for SHMP-stabilised NFs, respectively. The average HTC increased by increasing NFs loading and flow rate, with HTCmax of 17.0% noticed for ACAC-stabilised NFs. The ΔPmax and f max were 16.0% and 12.0%, respectively. Experimental and theoretical results showed a maximum deviation of ±7.0% and ±4.0%, respectively.</p><h2>Other Information</h2> <p> Published in: Case Studies in Thermal Engineering<br> License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.csite.2023.102716" target="_blank">https://dx.doi.org/10.1016/j.csite.2023.102716</a></p>2023-02-01T00:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.csite.2023.102716https://figshare.com/articles/journal_contribution/Effect_of_surfactants_on_the_convective_heat_transfer_and_pressure_drop_characteristics_of_ZnO_DIW_nanofluids_An_experimental_study/25036397CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/250363972023-02-01T00:00:00Z |
| spellingShingle | Effect of surfactants on the convective heat transfer and pressure drop characteristics of ZnO/DIW nanofluids: An experimental study Adnan Qamar (14421759) Engineering Chemical engineering Fluid mechanics and thermal engineering Nanotechnology Friction factor Pressure drop Heat transfer coefficient Mini tube Nanofluids Nanoparticles Reynolds number Dispersion stability Stabilising agents |
| status_str | publishedVersion |
| title | Effect of surfactants on the convective heat transfer and pressure drop characteristics of ZnO/DIW nanofluids: An experimental study |
| title_full | Effect of surfactants on the convective heat transfer and pressure drop characteristics of ZnO/DIW nanofluids: An experimental study |
| title_fullStr | Effect of surfactants on the convective heat transfer and pressure drop characteristics of ZnO/DIW nanofluids: An experimental study |
| title_full_unstemmed | Effect of surfactants on the convective heat transfer and pressure drop characteristics of ZnO/DIW nanofluids: An experimental study |
| title_short | Effect of surfactants on the convective heat transfer and pressure drop characteristics of ZnO/DIW nanofluids: An experimental study |
| title_sort | Effect of surfactants on the convective heat transfer and pressure drop characteristics of ZnO/DIW nanofluids: An experimental study |
| topic | Engineering Chemical engineering Fluid mechanics and thermal engineering Nanotechnology Friction factor Pressure drop Heat transfer coefficient Mini tube Nanofluids Nanoparticles Reynolds number Dispersion stability Stabilising agents |