Computational investigation of thermal behaviors of the automotive radiator operated with water/anti-freezing agent nanofluid based coolant
In this study, a 3D computational fluid dynamics (CFD) study was conducted in ANSYS (FLUENT) to examine the thermal performance of an automotive radiator using conventional and hybrid coolant with a Al2O3 nanoparticles (NPs) . A hybrid mixture of pure water H2Oand ethylene glycol (EG) in the volume...
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| Format: | Article |
| Language: | English |
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Universidade Federal de Viçosa (UFV)
2022-03-01
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| Series: | The Journal of Engineering and Exact Sciences |
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| Online Access: | https://periodicos.ufv.br/jcec/article/view/13977 |
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| author | Ibrahim Ademola Fetuga Olabode Thomas Olakoyejo Daniel Ejike Ewim Joshua Kolawole Gbegudu Adekunle Omolade Adelaja Olayinka Omowunmi Adewumi |
| author_facet | Ibrahim Ademola Fetuga Olabode Thomas Olakoyejo Daniel Ejike Ewim Joshua Kolawole Gbegudu Adekunle Omolade Adelaja Olayinka Omowunmi Adewumi |
| author_sort | Ibrahim Ademola Fetuga |
| collection | DOAJ |
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In this study, a 3D computational fluid dynamics (CFD) study was conducted in ANSYS (FLUENT) to examine the thermal performance of an automotive radiator using conventional and hybrid coolant with a Al2O3 nanoparticles (NPs) . A hybrid mixture of pure water H2Oand ethylene glycol (EG) in the volumetric proportion of , was coupled with Al2O3 nanoparticles with volume fraction of 1% - 4% at different inlet temperatures. The Reynolds number was varied from 4 000 to 8 000. From the numerical results obtained, it was found that an increase in nanoparticle volume fraction led to an increase in heat transfer rate and pressure drop in the automotive radiator. Also, it was found that at a Reynolds number of 8 000, using the hybrid mixture as a base fluid increased the Nusselt number by 55.6% in contrast to pure water. However, further suspension of 4% Vol. Al2O3 nanoparticles into existing hybrid mixture increased the Nusselt number by 70%. Furthermore, it was found that an increase in the inlet temperature of the radiator caused more enhancement in the heat transfer rate. For Re=8 000 4% vol. Al2O3-water nanofluid, the heat transfer rate was enhanced by 54.57% when increasing the inlet temperature from 60oC to 90oC. Therefore, it is recommended that automobile radiators be operated at a high inlet temperature with nanofluid containing a very high concentration of suitable nanoparticles and an anti-freezing agent in an adequate volumetric proportion to achieve better thermal performance.
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| format | Article |
| id | doaj-art-4fe62075d3664c81aed878e4e88cfc13 |
| institution | Kabale University |
| issn | 2527-1075 |
| language | English |
| publishDate | 2022-03-01 |
| publisher | Universidade Federal de Viçosa (UFV) |
| record_format | Article |
| series | The Journal of Engineering and Exact Sciences |
| spelling | doaj-art-4fe62075d3664c81aed878e4e88cfc132025-02-02T19:56:37ZengUniversidade Federal de Viçosa (UFV)The Journal of Engineering and Exact Sciences2527-10752022-03-018210.18540/jcecvl8iss2pp13977-01eComputational investigation of thermal behaviors of the automotive radiator operated with water/anti-freezing agent nanofluid based coolantIbrahim Ademola Fetuga0Olabode Thomas Olakoyejo1Daniel Ejike Ewim2Joshua Kolawole Gbegudu3Adekunle Omolade Adelaja4Olayinka Omowunmi Adewumi5Department of Mechanical Engineering, University of LagosDepartment of Mechanical Engineering, University of LagosDepartment of Mechanical Engineering, Durban University of Technology, South AfricaDepartment of Mechanical Engineering, University of LagosDepartment of Mechanical Engineering, University of LagosDepartment of Mechanical Engineering, University of Lagos In this study, a 3D computational fluid dynamics (CFD) study was conducted in ANSYS (FLUENT) to examine the thermal performance of an automotive radiator using conventional and hybrid coolant with a Al2O3 nanoparticles (NPs) . A hybrid mixture of pure water H2Oand ethylene glycol (EG) in the volumetric proportion of , was coupled with Al2O3 nanoparticles with volume fraction of 1% - 4% at different inlet temperatures. The Reynolds number was varied from 4 000 to 8 000. From the numerical results obtained, it was found that an increase in nanoparticle volume fraction led to an increase in heat transfer rate and pressure drop in the automotive radiator. Also, it was found that at a Reynolds number of 8 000, using the hybrid mixture as a base fluid increased the Nusselt number by 55.6% in contrast to pure water. However, further suspension of 4% Vol. Al2O3 nanoparticles into existing hybrid mixture increased the Nusselt number by 70%. Furthermore, it was found that an increase in the inlet temperature of the radiator caused more enhancement in the heat transfer rate. For Re=8 000 4% vol. Al2O3-water nanofluid, the heat transfer rate was enhanced by 54.57% when increasing the inlet temperature from 60oC to 90oC. Therefore, it is recommended that automobile radiators be operated at a high inlet temperature with nanofluid containing a very high concentration of suitable nanoparticles and an anti-freezing agent in an adequate volumetric proportion to achieve better thermal performance. https://periodicos.ufv.br/jcec/article/view/13977Simulation. Nanofluid. Ethylene glycol. Automotive Radiator. Heat enhancement. |
| spellingShingle | Ibrahim Ademola Fetuga Olabode Thomas Olakoyejo Daniel Ejike Ewim Joshua Kolawole Gbegudu Adekunle Omolade Adelaja Olayinka Omowunmi Adewumi Computational investigation of thermal behaviors of the automotive radiator operated with water/anti-freezing agent nanofluid based coolant The Journal of Engineering and Exact Sciences Simulation. Nanofluid. Ethylene glycol. Automotive Radiator. Heat enhancement. |
| title | Computational investigation of thermal behaviors of the automotive radiator operated with water/anti-freezing agent nanofluid based coolant |
| title_full | Computational investigation of thermal behaviors of the automotive radiator operated with water/anti-freezing agent nanofluid based coolant |
| title_fullStr | Computational investigation of thermal behaviors of the automotive radiator operated with water/anti-freezing agent nanofluid based coolant |
| title_full_unstemmed | Computational investigation of thermal behaviors of the automotive radiator operated with water/anti-freezing agent nanofluid based coolant |
| title_short | Computational investigation of thermal behaviors of the automotive radiator operated with water/anti-freezing agent nanofluid based coolant |
| title_sort | computational investigation of thermal behaviors of the automotive radiator operated with water anti freezing agent nanofluid based coolant |
| topic | Simulation. Nanofluid. Ethylene glycol. Automotive Radiator. Heat enhancement. |
| url | https://periodicos.ufv.br/jcec/article/view/13977 |
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