A numerical study of the effect of different geometrical parameters on the cooling processes in electrical transformer
Proper thermal control is one of the most important aspects that should be considered when utilizing electrical transformers. This research work offers a numerical analysis of the effect of changing the shape of transformer fins on the heat exchange process. Based on the results of CFD simulations...
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| Language: | English |
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Wasit University
2024-12-01
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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/576 |
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| author | Marwa Mohammed Hadi Basher |
| author_facet | Marwa Mohammed Hadi Basher |
| author_sort | Marwa Mohammed |
| collection | DOAJ |
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Proper thermal control is one of the most important aspects that should be considered when utilizing electrical transformers. This research work offers a numerical analysis of the effect of changing the shape of transformer fins on the heat exchange process. Based on the results of CFD simulations, several types of fin shapes such as rectangular, triangular and wavy are discussed to describe the improvements of heat transfer. The study examines the shape of an electrical transformer, determining the optimal distance between fins, fin shapes, transformer shape, rib type, and rib number. The results are then applied to a special case, representing the best of all variables on the transformer. The study also considers the effect of increasing the surface area of the ribs on the fins, and the number of ribs used on the fins. The temperature gradient of a coil, oil, and transformer varies depending on the distance between fins, fin shape, rib type, and number of ribs. The coil temperature is 383 K when the fins are 7 cm apart, 381 K when the fins are 5 cm apart, and 381 K when the fins are 3cm apart. The temperature gradient also varies depending on the rib type, with triangular ribs increasing the surface area for heat energy transfer and reducing the temperature value. The oil temperature gradient varies depending on the fins, ribs type, and number of ribs. The heat transfer coefficient gradient of the transformer surface varies depending on the fins, ribs type, and number of ribs. The surface heat transfer coefficient reaches 1.5 W/m2. K when the fins are l shape, 1.6 W/m2. K when the fins are c shape, 1.7 W/m2. K when the fins are z shape, 1.4 W/m2. K when the ribs are rectangular, 1.6 W/m2. K when the ribs are triangular, and 1.4 W/m2. K when the ribs are 9 ribs.
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| format | Article |
| id | doaj-art-58387b522dcd44779024d49ddebd8fe1 |
| institution | OA Journals |
| issn | 2305-6932 2663-1970 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Wasit University |
| record_format | Article |
| series | Wasit Journal of Engineering Sciences |
| spelling | doaj-art-58387b522dcd44779024d49ddebd8fe12025-08-20T02:07:01ZengWasit UniversityWasit Journal of Engineering Sciences2305-69322663-19702024-12-0112410.31185/ejuow.Vol12.Iss4.576A numerical study of the effect of different geometrical parameters on the cooling processes in electrical transformerMarwa Mohammed0Hadi Basher Wasit University Proper thermal control is one of the most important aspects that should be considered when utilizing electrical transformers. This research work offers a numerical analysis of the effect of changing the shape of transformer fins on the heat exchange process. Based on the results of CFD simulations, several types of fin shapes such as rectangular, triangular and wavy are discussed to describe the improvements of heat transfer. The study examines the shape of an electrical transformer, determining the optimal distance between fins, fin shapes, transformer shape, rib type, and rib number. The results are then applied to a special case, representing the best of all variables on the transformer. The study also considers the effect of increasing the surface area of the ribs on the fins, and the number of ribs used on the fins. The temperature gradient of a coil, oil, and transformer varies depending on the distance between fins, fin shape, rib type, and number of ribs. The coil temperature is 383 K when the fins are 7 cm apart, 381 K when the fins are 5 cm apart, and 381 K when the fins are 3cm apart. The temperature gradient also varies depending on the rib type, with triangular ribs increasing the surface area for heat energy transfer and reducing the temperature value. The oil temperature gradient varies depending on the fins, ribs type, and number of ribs. The heat transfer coefficient gradient of the transformer surface varies depending on the fins, ribs type, and number of ribs. The surface heat transfer coefficient reaches 1.5 W/m2. K when the fins are l shape, 1.6 W/m2. K when the fins are c shape, 1.7 W/m2. K when the fins are z shape, 1.4 W/m2. K when the ribs are rectangular, 1.6 W/m2. K when the ribs are triangular, and 1.4 W/m2. K when the ribs are 9 ribs. https://ejuow.uowasit.edu.iq/index.php/ejuow/article/view/576Electrical Transformer, Fin Shape, Heat Transfer Coefficient, Rectangular Fins, Triangular Fins, Transformer Oil, Numerical Simulation |
| spellingShingle | Marwa Mohammed Hadi Basher A numerical study of the effect of different geometrical parameters on the cooling processes in electrical transformer Wasit Journal of Engineering Sciences Electrical Transformer, Fin Shape, Heat Transfer Coefficient, Rectangular Fins, Triangular Fins, Transformer Oil, Numerical Simulation |
| title | A numerical study of the effect of different geometrical parameters on the cooling processes in electrical transformer |
| title_full | A numerical study of the effect of different geometrical parameters on the cooling processes in electrical transformer |
| title_fullStr | A numerical study of the effect of different geometrical parameters on the cooling processes in electrical transformer |
| title_full_unstemmed | A numerical study of the effect of different geometrical parameters on the cooling processes in electrical transformer |
| title_short | A numerical study of the effect of different geometrical parameters on the cooling processes in electrical transformer |
| title_sort | numerical study of the effect of different geometrical parameters on the cooling processes in electrical transformer |
| topic | Electrical Transformer, Fin Shape, Heat Transfer Coefficient, Rectangular Fins, Triangular Fins, Transformer Oil, Numerical Simulation |
| url | https://ejuow.uowasit.edu.iq/index.php/ejuow/article/view/576 |
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