Analysis study of nano fluids and longitudinal fins on the heat transfer in the counter flow double pipe heat exchanger
In this paper, the heat transfer enhancement in a counter-flow double pipe heat exchanger with longitudinal rectangular fins on the outer surface of the inner tube was numerically investigated by ANSYS 20.R1 software using CFD package and finite volume method. Hot water flows in the inner tube at 6...
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Wasit University
2022-07-01
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| Series: | Wasit Journal of Engineering Sciences |
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| Online Access: | https://ejuow.uowasit.edu.iq/index.php/ejuow/article/view/288 |
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| author | Ban ghulam ridha ali Zena khalefa Kadhim |
| author_facet | Ban ghulam ridha ali Zena khalefa Kadhim |
| author_sort | Ban ghulam ridha ali |
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In this paper, the heat transfer enhancement in a counter-flow double pipe heat exchanger with longitudinal rectangular fins on the outer surface of the inner tube was numerically investigated by ANSYS 20.R1 software using CFD package and finite volume method. Hot water flows in the inner tube at 60℃ while cold water flows in the outer tube at 25℃. The flow is laminar with five mass flow rates from 0.012kg/s to 0.02kg/s) for hot side and from 0.01kg/s to 0.03kg/s for cold side. Two types of nanoparticles Al₂O₃ and SiO₂ have been added to produce nanofluids as heat transfer fluid in the external channel (cold fluid flow) with four different concentrations from 0.04% to 1%. Results showed, as the concentration of Nanofluids increased, the heat transfer rate also increased. At 1% concentration, the maximum heat transfer coefficient was belonged to Al₂O₃/water nanofluid by 22.3% enhancement in comparison with distilled water, while the SiO₂/water nanofluid has enhancement of 19% in heat transfer coefficient in comparison with the distilled water. Both nanofluids show higher pressure drop compared with distilled water where the SiO₂/water nanofluid gives a higher drop of (33.2%), while the Al₂O₃/water nanofluid has (32.1%) of the pressure drop.
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| format | Article |
| id | doaj-art-820531b5f46445bc80ff2beebab1bc54 |
| institution | OA Journals |
| issn | 2305-6932 2663-1970 |
| language | English |
| publishDate | 2022-07-01 |
| publisher | Wasit University |
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| series | Wasit Journal of Engineering Sciences |
| spelling | doaj-art-820531b5f46445bc80ff2beebab1bc542025-08-20T02:06:50ZengWasit UniversityWasit Journal of Engineering Sciences2305-69322663-19702022-07-0110210.31185/ejuow.Vol10.Iss2.288Analysis study of nano fluids and longitudinal fins on the heat transfer in the counter flow double pipe heat exchangerBan ghulam ridha ali0Zena khalefa Kadhim 1University of wasitDepartment of Mechanical Engineering, College of engineering, University of Wasit, Wasit, Iraq In this paper, the heat transfer enhancement in a counter-flow double pipe heat exchanger with longitudinal rectangular fins on the outer surface of the inner tube was numerically investigated by ANSYS 20.R1 software using CFD package and finite volume method. Hot water flows in the inner tube at 60℃ while cold water flows in the outer tube at 25℃. The flow is laminar with five mass flow rates from 0.012kg/s to 0.02kg/s) for hot side and from 0.01kg/s to 0.03kg/s for cold side. Two types of nanoparticles Al₂O₃ and SiO₂ have been added to produce nanofluids as heat transfer fluid in the external channel (cold fluid flow) with four different concentrations from 0.04% to 1%. Results showed, as the concentration of Nanofluids increased, the heat transfer rate also increased. At 1% concentration, the maximum heat transfer coefficient was belonged to Al₂O₃/water nanofluid by 22.3% enhancement in comparison with distilled water, while the SiO₂/water nanofluid has enhancement of 19% in heat transfer coefficient in comparison with the distilled water. Both nanofluids show higher pressure drop compared with distilled water where the SiO₂/water nanofluid gives a higher drop of (33.2%), while the Al₂O₃/water nanofluid has (32.1%) of the pressure drop. https://ejuow.uowasit.edu.iq/index.php/ejuow/article/view/288Heat exchanger, Nanofluids, Longitudinal Fins, Laminar flow, CFD, Rectangular Fins. |
| spellingShingle | Ban ghulam ridha ali Zena khalefa Kadhim Analysis study of nano fluids and longitudinal fins on the heat transfer in the counter flow double pipe heat exchanger Wasit Journal of Engineering Sciences Heat exchanger, Nanofluids, Longitudinal Fins, Laminar flow, CFD, Rectangular Fins. |
| title | Analysis study of nano fluids and longitudinal fins on the heat transfer in the counter flow double pipe heat exchanger |
| title_full | Analysis study of nano fluids and longitudinal fins on the heat transfer in the counter flow double pipe heat exchanger |
| title_fullStr | Analysis study of nano fluids and longitudinal fins on the heat transfer in the counter flow double pipe heat exchanger |
| title_full_unstemmed | Analysis study of nano fluids and longitudinal fins on the heat transfer in the counter flow double pipe heat exchanger |
| title_short | Analysis study of nano fluids and longitudinal fins on the heat transfer in the counter flow double pipe heat exchanger |
| title_sort | analysis study of nano fluids and longitudinal fins on the heat transfer in the counter flow double pipe heat exchanger |
| topic | Heat exchanger, Nanofluids, Longitudinal Fins, Laminar flow, CFD, Rectangular Fins. |
| url | https://ejuow.uowasit.edu.iq/index.php/ejuow/article/view/288 |
| work_keys_str_mv | AT banghulamridhaali analysisstudyofnanofluidsandlongitudinalfinsontheheattransferinthecounterflowdoublepipeheatexchanger AT zenakhalefakadhim analysisstudyofnanofluidsandlongitudinalfinsontheheattransferinthecounterflowdoublepipeheatexchanger |