Heat transfer, friction factor and exergy efficiency analysis of nanodiamond-Fe3O4/water hybrid nanofluids in a tube with twisted tape inserts
In the present study, the Nusselt number, exergy efficiency, entropy generation and themal performance factor of nanodiamond-Fe3O4/water hybrid nanofluids in a tube with twisted tape inserts have been conducted experimentally. The experiments have been performed under turbulent flow regime in differ...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Ain Shams Engineering Journal |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2090447922003793 |
| _version_ | 1827808385299382272 |
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| author | L. Syam Sundar |
| author_facet | L. Syam Sundar |
| author_sort | L. Syam Sundar |
| collection | DOAJ |
| description | In the present study, the Nusselt number, exergy efficiency, entropy generation and themal performance factor of nanodiamond-Fe3O4/water hybrid nanofluids in a tube with twisted tape inserts have been conducted experimentally. The experiments have been performed under turbulent flow regime in different Reynolds number ranging from 2000 to 22000, volume loadings from 0 to 0.2 %, and twisted tape inserts, H/D of 5, 10, and 15, respectively. It is found that, compared to water plain tube, the Nusselt number and exergy efficiency of 0.2 % vol. of nanofluid in a tube is raised by 29.55 % and 18.13 % with twisted tape insert, H/D of 5, the Nusselt number and exergy efficiency is further raised by 73.04 % and 161.31 % at a Reynolds number of 20,095 with a maximum friction factor penalty of 61.93 %. The thermal entropy generation is dropped by 30.72 % for 0.2 % vol. of nanofluid in a tube and with twisted tape insert, H/D of 5, the thermal entropy generation is further dropped by 48.58 % compared to water. Maximum increase of frictional entropy generation is about 74.81 % at 0.2 % vol. of nanofluid with twisted tape insert of H/D = 5 over base fluid. New Nusselt number and friction factor correlations were developed. |
| first_indexed | 2024-03-11T22:26:26Z |
| format | Article |
| id | doaj.art-00445a2c168945038a403f068c9279a4 |
| institution | Directory Open Access Journal |
| issn | 2090-4479 |
| language | English |
| last_indexed | 2024-03-11T22:26:26Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ain Shams Engineering Journal |
| spelling | doaj.art-00445a2c168945038a403f068c9279a42023-09-24T05:14:46ZengElsevierAin Shams Engineering Journal2090-44792023-09-01149102068Heat transfer, friction factor and exergy efficiency analysis of nanodiamond-Fe3O4/water hybrid nanofluids in a tube with twisted tape insertsL. Syam Sundar0Department of Mechanical Engineering, College of Engineering, Prince Mohammad Bin Fahd University, P.O. Box 1664, Al-Khobar 31952, Saudi ArabiaIn the present study, the Nusselt number, exergy efficiency, entropy generation and themal performance factor of nanodiamond-Fe3O4/water hybrid nanofluids in a tube with twisted tape inserts have been conducted experimentally. The experiments have been performed under turbulent flow regime in different Reynolds number ranging from 2000 to 22000, volume loadings from 0 to 0.2 %, and twisted tape inserts, H/D of 5, 10, and 15, respectively. It is found that, compared to water plain tube, the Nusselt number and exergy efficiency of 0.2 % vol. of nanofluid in a tube is raised by 29.55 % and 18.13 % with twisted tape insert, H/D of 5, the Nusselt number and exergy efficiency is further raised by 73.04 % and 161.31 % at a Reynolds number of 20,095 with a maximum friction factor penalty of 61.93 %. The thermal entropy generation is dropped by 30.72 % for 0.2 % vol. of nanofluid in a tube and with twisted tape insert, H/D of 5, the thermal entropy generation is further dropped by 48.58 % compared to water. Maximum increase of frictional entropy generation is about 74.81 % at 0.2 % vol. of nanofluid with twisted tape insert of H/D = 5 over base fluid. New Nusselt number and friction factor correlations were developed.http://www.sciencedirect.com/science/article/pii/S2090447922003793Exergy AnalysisHybrid NanoparticlesNusselt NumberPumping PowerEquations |
| spellingShingle | L. Syam Sundar Heat transfer, friction factor and exergy efficiency analysis of nanodiamond-Fe3O4/water hybrid nanofluids in a tube with twisted tape inserts Ain Shams Engineering Journal Exergy Analysis Hybrid Nanoparticles Nusselt Number Pumping Power Equations |
| title | Heat transfer, friction factor and exergy efficiency analysis of nanodiamond-Fe3O4/water hybrid nanofluids in a tube with twisted tape inserts |
| title_full | Heat transfer, friction factor and exergy efficiency analysis of nanodiamond-Fe3O4/water hybrid nanofluids in a tube with twisted tape inserts |
| title_fullStr | Heat transfer, friction factor and exergy efficiency analysis of nanodiamond-Fe3O4/water hybrid nanofluids in a tube with twisted tape inserts |
| title_full_unstemmed | Heat transfer, friction factor and exergy efficiency analysis of nanodiamond-Fe3O4/water hybrid nanofluids in a tube with twisted tape inserts |
| title_short | Heat transfer, friction factor and exergy efficiency analysis of nanodiamond-Fe3O4/water hybrid nanofluids in a tube with twisted tape inserts |
| title_sort | heat transfer friction factor and exergy efficiency analysis of nanodiamond fe3o4 water hybrid nanofluids in a tube with twisted tape inserts |
| topic | Exergy Analysis Hybrid Nanoparticles Nusselt Number Pumping Power Equations |
| url | http://www.sciencedirect.com/science/article/pii/S2090447922003793 |
| work_keys_str_mv | AT lsyamsundar heattransferfrictionfactorandexergyefficiencyanalysisofnanodiamondfe3o4waterhybridnanofluidsinatubewithtwistedtapeinserts |