Experimental Investigation of the Thermal-hydraulic Performance of Conically Coiled Tubes using Al2O3/Water Nanofluid
The thermal-hydraulic performance of conically coiled tubes (CCTs) was investigated experimentally under constant heat flux boundary conditions in this study. The effect of several factors, such as the flow Dean number, coil torsion, and varied nanoparticle weight concentrations, on the flow's...
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| Формат: | Статья |
| Язык: | Arabic |
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Faculty of Engineering, Tanta University
2023-03-01
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| Серии: | Journal of Engineering Research - Egypt |
| Предметы: | |
| Online-ссылка: | https://erjeng.journals.ekb.eg/article_286251_aa5bce33d57bf2fe8c06298540c61f6a.pdf |
| _version_ | 1826994368380141568 |
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| author | Mohamed Abdelghany Mahmoud Sharafeldin Osama Abdellatif Samir Elshamy |
| author_facet | Mohamed Abdelghany Mahmoud Sharafeldin Osama Abdellatif Samir Elshamy |
| author_sort | Mohamed Abdelghany |
| collection | DOAJ |
| description | The thermal-hydraulic performance of conically coiled tubes (CCTs) was investigated experimentally under constant heat flux boundary conditions in this study. The effect of several factors, such as the flow Dean number, coil torsion, and varied nanoparticle weight concentrations, on the flow's heat transfer coefficient and pressure drop was studied. Thermo-hydraulic performance was studied at 0.3%, 0.6%, and 0.9% volume concentrations (ϕ) of Al2O3/water nanofluid, a Dean number (De) of 1148–2983, and coil torsions (λ) ranging from 0.02 to 0.052. Results indicated that the heat transfer rates (HTRs) of CCTs increased when the coil torsion was decreased. According to the findings, the average heat transfer coefficient (havg) rises as De increases, while friction factor (ƒ) tends to decrease. The average increase in havg is 32% at lower De values and 26% at higher De values as the nanofluid concentration increased from 0.3% to 0.9%. The thermal performance factor (TPF) improved when λ lowered from 0.052 to 0.02. |
| first_indexed | 2024-03-13T04:14:14Z |
| format | Article |
| id | doaj.art-16fcb5d5d9134828aecd83c2fec4ab5f |
| institution | Directory Open Access Journal |
| issn | 2356-9441 2735-4873 |
| language | Arabic |
| last_indexed | 2025-02-18T09:17:38Z |
| publishDate | 2023-03-01 |
| publisher | Faculty of Engineering, Tanta University |
| record_format | Article |
| series | Journal of Engineering Research - Egypt |
| spelling | doaj.art-16fcb5d5d9134828aecd83c2fec4ab5f2024-11-02T22:10:39ZaraFaculty of Engineering, Tanta UniversityJournal of Engineering Research - Egypt2356-94412735-48732023-03-017114114910.21608/erjeng.2023.192940.1152286251Experimental Investigation of the Thermal-hydraulic Performance of Conically Coiled Tubes using Al2O3/Water NanofluidMohamed Abdelghany0Mahmoud Sharafeldin1Osama Abdellatif2Samir Elshamy3Mechatronics Department, High institute of engineering, October 6 City, Egypt.Mechanical Engineering Department, Faculty of Engineering at shoubra.Mechanical Engineering Department, Faculty of Engineering at shoubra.Mechatronics Department, High institute of engineering, October 6 City, Egypt.The thermal-hydraulic performance of conically coiled tubes (CCTs) was investigated experimentally under constant heat flux boundary conditions in this study. The effect of several factors, such as the flow Dean number, coil torsion, and varied nanoparticle weight concentrations, on the flow's heat transfer coefficient and pressure drop was studied. Thermo-hydraulic performance was studied at 0.3%, 0.6%, and 0.9% volume concentrations (ϕ) of Al2O3/water nanofluid, a Dean number (De) of 1148–2983, and coil torsions (λ) ranging from 0.02 to 0.052. Results indicated that the heat transfer rates (HTRs) of CCTs increased when the coil torsion was decreased. According to the findings, the average heat transfer coefficient (havg) rises as De increases, while friction factor (ƒ) tends to decrease. The average increase in havg is 32% at lower De values and 26% at higher De values as the nanofluid concentration increased from 0.3% to 0.9%. The thermal performance factor (TPF) improved when λ lowered from 0.052 to 0.02.https://erjeng.journals.ekb.eg/article_286251_aa5bce33d57bf2fe8c06298540c61f6a.pdfnanofluidconical coiled tubesthermal performance factorcoil torsionheat transfer |
| spellingShingle | Mohamed Abdelghany Mahmoud Sharafeldin Osama Abdellatif Samir Elshamy Experimental Investigation of the Thermal-hydraulic Performance of Conically Coiled Tubes using Al2O3/Water Nanofluid Journal of Engineering Research - Egypt nanofluid conical coiled tubes thermal performance factor coil torsion heat transfer |
| title | Experimental Investigation of the Thermal-hydraulic Performance of Conically Coiled Tubes using Al2O3/Water Nanofluid |
| title_full | Experimental Investigation of the Thermal-hydraulic Performance of Conically Coiled Tubes using Al2O3/Water Nanofluid |
| title_fullStr | Experimental Investigation of the Thermal-hydraulic Performance of Conically Coiled Tubes using Al2O3/Water Nanofluid |
| title_full_unstemmed | Experimental Investigation of the Thermal-hydraulic Performance of Conically Coiled Tubes using Al2O3/Water Nanofluid |
| title_short | Experimental Investigation of the Thermal-hydraulic Performance of Conically Coiled Tubes using Al2O3/Water Nanofluid |
| title_sort | experimental investigation of the thermal hydraulic performance of conically coiled tubes using al2o3 water nanofluid |
| topic | nanofluid conical coiled tubes thermal performance factor coil torsion heat transfer |
| url | https://erjeng.journals.ekb.eg/article_286251_aa5bce33d57bf2fe8c06298540c61f6a.pdf |
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