The impact of D-shaped jaggedness on heat transfer enhancement technique using Al2O3 based nanoparticles
The study focused on analyzing the dimpled surface's impact over the mini channel on the flow parameters and heat transfer over a circular flow regime using a numerical approach. Alumina nano-fluid evaluated as thermo-fluid with different volume fractions was analyzed to observe the heat transf...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-05-01
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| Series: | International Journal of Thermofluids |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666202721000070 |
| _version_ | 1819096659699695616 |
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| author | Farid Ahmed Md Atrehar Abir A.S.M. Redwan Arafat A. Bhuiyan A.S. Mollah |
| author_facet | Farid Ahmed Md Atrehar Abir A.S.M. Redwan Arafat A. Bhuiyan A.S. Mollah |
| author_sort | Farid Ahmed |
| collection | DOAJ |
| description | The study focused on analyzing the dimpled surface's impact over the mini channel on the flow parameters and heat transfer over a circular flow regime using a numerical approach. Alumina nano-fluid evaluated as thermo-fluid with different volume fractions was analyzed to observe the heat transfer enhancement over the dimpled channel under laminar flow conditions. Through varying stream-wise spacing (x/d) and span-wise spacing (y/d), the investigations identify the impact of dimpled surface in the heat transfer enhancement under constant and uniform heat flux. The results concluded that the dimpled flow channel could enhance heat transfer compared to a smooth channel with a 27% increase in thermal efficiency. The results showed that the dimpled channel with a 4% volume fraction of alumina nano-fluid has an increase in thermal efficiency up to 32%, followed by a 1% volume fraction having a thermal efficiency of 29%. The evaluation also made that the decrease in stream-wise spacing (x/d) and span-wise spacing (y/d) increases Nusselt number and friction factors. Further studies are going to analyze the nanoparticle clogging overflow channel using numerical simulations. |
| first_indexed | 2024-12-22T00:02:43Z |
| format | Article |
| id | doaj.art-b5bb4009c3404fbd8ff64f68d9c23219 |
| institution | Directory Open Access Journal |
| issn | 2666-2027 |
| language | English |
| last_indexed | 2024-12-22T00:02:43Z |
| publishDate | 2021-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Thermofluids |
| spelling | doaj.art-b5bb4009c3404fbd8ff64f68d9c232192022-12-21T18:45:38ZengElsevierInternational Journal of Thermofluids2666-20272021-05-0110100069The impact of D-shaped jaggedness on heat transfer enhancement technique using Al2O3 based nanoparticlesFarid Ahmed0Md Atrehar Abir1A.S.M. Redwan2Arafat A. Bhuiyan3A.S. Mollah4Dept. of Nuclear Science and Engineering, Military Institute of Science and Technology (MIST), Mirpur Cantonment, Dhaka-1216, BangladeshDepartment of Mechanical and Production Engineering, Islamic University of Technology (IUT), Board Bazar, Gazipur-1704, BangladeshDepartment of Mechanical and Production Engineering, Islamic University of Technology (IUT), Board Bazar, Gazipur-1704, BangladeshDepartment of Mechanical and Production Engineering, Islamic University of Technology (IUT), Board Bazar, Gazipur-1704, Bangladesh; Corresponding author:Dept. of Nuclear Science and Engineering, Military Institute of Science and Technology (MIST), Mirpur Cantonment, Dhaka-1216, BangladeshThe study focused on analyzing the dimpled surface's impact over the mini channel on the flow parameters and heat transfer over a circular flow regime using a numerical approach. Alumina nano-fluid evaluated as thermo-fluid with different volume fractions was analyzed to observe the heat transfer enhancement over the dimpled channel under laminar flow conditions. Through varying stream-wise spacing (x/d) and span-wise spacing (y/d), the investigations identify the impact of dimpled surface in the heat transfer enhancement under constant and uniform heat flux. The results concluded that the dimpled flow channel could enhance heat transfer compared to a smooth channel with a 27% increase in thermal efficiency. The results showed that the dimpled channel with a 4% volume fraction of alumina nano-fluid has an increase in thermal efficiency up to 32%, followed by a 1% volume fraction having a thermal efficiency of 29%. The evaluation also made that the decrease in stream-wise spacing (x/d) and span-wise spacing (y/d) increases Nusselt number and friction factors. Further studies are going to analyze the nanoparticle clogging overflow channel using numerical simulations.http://www.sciencedirect.com/science/article/pii/S2666202721000070CFDHeat transferDimpled SurfaceNano-fluid |
| spellingShingle | Farid Ahmed Md Atrehar Abir A.S.M. Redwan Arafat A. Bhuiyan A.S. Mollah The impact of D-shaped jaggedness on heat transfer enhancement technique using Al2O3 based nanoparticles International Journal of Thermofluids CFD Heat transfer Dimpled Surface Nano-fluid |
| title | The impact of D-shaped jaggedness on heat transfer enhancement technique using Al2O3 based nanoparticles |
| title_full | The impact of D-shaped jaggedness on heat transfer enhancement technique using Al2O3 based nanoparticles |
| title_fullStr | The impact of D-shaped jaggedness on heat transfer enhancement technique using Al2O3 based nanoparticles |
| title_full_unstemmed | The impact of D-shaped jaggedness on heat transfer enhancement technique using Al2O3 based nanoparticles |
| title_short | The impact of D-shaped jaggedness on heat transfer enhancement technique using Al2O3 based nanoparticles |
| title_sort | impact of d shaped jaggedness on heat transfer enhancement technique using al2o3 based nanoparticles |
| topic | CFD Heat transfer Dimpled Surface Nano-fluid |
| url | http://www.sciencedirect.com/science/article/pii/S2666202721000070 |
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