Advanced Thermo-Hydraulic Assessment of Helical Pipes with Different Shapes of Jackets Using Single-Phase and Hybrid Nanofluids
This study investigates the efficiency and flow characteristics of helical pipes with different jacket shapes, utilizing single and hybrid nanofluids to enhance heat transfer. The research work presented here provides a unique, coherent method to enhance heat transfer efficiency by concurrently inco...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-05-01
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| Series: | International Journal of Thermofluids |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666202724000703 |
| _version_ | 1797262854130237440 |
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| author | S M Naqib Ul Islam Ashraf Mustakim Rifat Ahamed Musfequs Salehin M Monjurul Ehsan |
| author_facet | S M Naqib Ul Islam Ashraf Mustakim Rifat Ahamed Musfequs Salehin M Monjurul Ehsan |
| author_sort | S M Naqib Ul Islam |
| collection | DOAJ |
| description | This study investigates the efficiency and flow characteristics of helical pipes with different jacket shapes, utilizing single and hybrid nanofluids to enhance heat transfer. The research work presented here provides a unique, coherent method to enhance heat transfer efficiency by concurrently incorporating geometrical alterations and improving operating fluid efficiency. A computational framework analyzes turbulent flow in three-dimensional helical pipes with Reynolds numbers ranging from 5000 to 30,000 and a constant heat flux of 1000 W/m2. This investigation involves evaluating the thermo-hydrodynamic performance of spiral pipes with circular, triangular, and square-shaped jackets, using various volume fractions of single-phase nanofluids (water-based Al2O3 and CuO nanofluids) and a water-based hybrid nanofluid comprising Al2O3/Cu. The results indicate that using different nanofluids significantly improves the Nusselt number value and heat transfer coefficients, ranging from 36 % to 60 % compared to water in a smooth coiled pipe. The strategic design of the jacket enhances the Nusselt number values by generating vortices and increasing turbulence. The Bejan number indicates greater irreversibility in the heat transfer process, leading to substantial energy dispersion. The performance evaluation criterion (PEC) value exceeding one suggests that the modified geometries have the potential to outperform smooth channels. |
| first_indexed | 2024-04-25T00:03:43Z |
| format | Article |
| id | doaj.art-6c5f3673e3d74943bf54baf781c438da |
| institution | Directory Open Access Journal |
| issn | 2666-2027 |
| language | English |
| last_indexed | 2024-04-25T00:03:43Z |
| publishDate | 2024-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Thermofluids |
| spelling | doaj.art-6c5f3673e3d74943bf54baf781c438da2024-03-14T06:16:08ZengElsevierInternational Journal of Thermofluids2666-20272024-05-0122100628Advanced Thermo-Hydraulic Assessment of Helical Pipes with Different Shapes of Jackets Using Single-Phase and Hybrid NanofluidsS M Naqib Ul Islam0Ashraf Mustakim1Rifat Ahamed2Musfequs Salehin3M Monjurul Ehsan4Department of Mechanical and Production Engineering (MPE), Islamic University of Technology (IUT), Gazipur, 1704, BangladeshDepartment of Mechanical and Production Engineering (MPE), Islamic University of Technology (IUT), Gazipur, 1704, BangladeshDepartment of Mechanical and Production Engineering (MPE), Islamic University of Technology (IUT), Gazipur, 1704, BangladeshDepartment of Aircraft Maintenance Engineering (Aerospace), Bangabandhu Sheikh Mujibur Rahman Aviation and Aerospace University, Dhaka, 1215, BangladeshDepartment of Mechanical and Production Engineering (MPE), Islamic University of Technology (IUT), Gazipur, 1704, Bangladesh; Corresponding author.This study investigates the efficiency and flow characteristics of helical pipes with different jacket shapes, utilizing single and hybrid nanofluids to enhance heat transfer. The research work presented here provides a unique, coherent method to enhance heat transfer efficiency by concurrently incorporating geometrical alterations and improving operating fluid efficiency. A computational framework analyzes turbulent flow in three-dimensional helical pipes with Reynolds numbers ranging from 5000 to 30,000 and a constant heat flux of 1000 W/m2. This investigation involves evaluating the thermo-hydrodynamic performance of spiral pipes with circular, triangular, and square-shaped jackets, using various volume fractions of single-phase nanofluids (water-based Al2O3 and CuO nanofluids) and a water-based hybrid nanofluid comprising Al2O3/Cu. The results indicate that using different nanofluids significantly improves the Nusselt number value and heat transfer coefficients, ranging from 36 % to 60 % compared to water in a smooth coiled pipe. The strategic design of the jacket enhances the Nusselt number values by generating vortices and increasing turbulence. The Bejan number indicates greater irreversibility in the heat transfer process, leading to substantial energy dispersion. The performance evaluation criterion (PEC) value exceeding one suggests that the modified geometries have the potential to outperform smooth channels.http://www.sciencedirect.com/science/article/pii/S2666202724000703Heat exchangerNanofluidHybridHelical jacketBejan number, pec |
| spellingShingle | S M Naqib Ul Islam Ashraf Mustakim Rifat Ahamed Musfequs Salehin M Monjurul Ehsan Advanced Thermo-Hydraulic Assessment of Helical Pipes with Different Shapes of Jackets Using Single-Phase and Hybrid Nanofluids International Journal of Thermofluids Heat exchanger Nanofluid Hybrid Helical jacket Bejan number, pec |
| title | Advanced Thermo-Hydraulic Assessment of Helical Pipes with Different Shapes of Jackets Using Single-Phase and Hybrid Nanofluids |
| title_full | Advanced Thermo-Hydraulic Assessment of Helical Pipes with Different Shapes of Jackets Using Single-Phase and Hybrid Nanofluids |
| title_fullStr | Advanced Thermo-Hydraulic Assessment of Helical Pipes with Different Shapes of Jackets Using Single-Phase and Hybrid Nanofluids |
| title_full_unstemmed | Advanced Thermo-Hydraulic Assessment of Helical Pipes with Different Shapes of Jackets Using Single-Phase and Hybrid Nanofluids |
| title_short | Advanced Thermo-Hydraulic Assessment of Helical Pipes with Different Shapes of Jackets Using Single-Phase and Hybrid Nanofluids |
| title_sort | advanced thermo hydraulic assessment of helical pipes with different shapes of jackets using single phase and hybrid nanofluids |
| topic | Heat exchanger Nanofluid Hybrid Helical jacket Bejan number, pec |
| url | http://www.sciencedirect.com/science/article/pii/S2666202724000703 |
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