Arifin, Hafidh Aldiza (2019) Desain bentuk sidepod radiator dan unjuk kerja heat exchanger tipe tube and fin pada cooling system mobil formula student menggunakan metode computational fluid dynamics. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Dengan konfigurasi rear engine mounted, dimensi dan tempat radiator yang terbatas menjadikan mobil formula rawan terjadi overheating (suhu water cooling mencapai 120°C, optimal: 85- 88°C). Dilakukan desain sidepod radiator pada mobil Sapuangin speed 7 untuk mengoptimalkan kinerja heat exchanger tipe Tube and fin, perhitungan gaya drag dan lift beserta koefisien pada sidepod dan bodi dilakukan dengan metode Komputasi dinamika Fluida untuk memperoleh bentuk inlet ducting dan dimensi sidepod yang tepat untuk siklus heat rejection dan menjaga suhu water cooling dalam kondisi ideal untuk kinerja mesin yang lebih baik, tidak overheat dan overcooled. Berdasarkan pengujian lapangan, didapatkan suhu rata-rata mesin dengan radiator yang saat ini mencapai 104°C, dilakukan perhitungan performa mesin terhadap cooling system menunjukan adanya kekurangan kapasitas radiator. Kapasitas radiator yang tersedia hanya mampu memindahkan panas sebesar 8.764 kW, sedangkan secara teoritis mesin membutuhkan radiator dengan kapasitas minimal sebesar 37.986 kW. Dengan demikian dapat dikatakan bahwa radiator yang dipakai saat ini perlu diganti dengan kapasitas yang lebih baik. Dilakukan desain bodi dan sidepod dimana kinerja dari radiator dipengaruhi oleh bentuk dan desain sidepod, dari desain yang telah dilakukan didapatkan aliran udara yang baik melewati celah antara roda dan bodi depan sehingga aliran udara menuju radiator terbebas dari wake atau separasi aliran dari ban depan. Dari desain yang sudah dilakukan, didapatkan body dan sidepod dengan gaya hambat (drag) sebesar 28.758N, koefisien drag sebesar 0.49, gaya angkat (lift) sebesar -41.884N dan koefisien lift sebesar 0.135 pada kecepatan 14 m/s.
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With rear mounted engine configurations, the dimensions and place of the radiator are limited making car formula prone to overheating (cooling water temperature reach 120°C, optimal: 85-88°C). sidepod radiator design on sapuangin Speed 7 was carried out to optimize the performance of radiator, the assessment of drag and lift forces on the sidepod and body was carried out using the Computational Fluid Dynamics method to obtain ducting inlets, angles of attack and sidepod shape that could used a better Cycle heat rejection and cooling water temperatur in ideal conditions for a better engine, not too hot and too cold. Based on field testing, the average engine temperatur with a radiator is up to 104 degrees Celsius, calculating the engine's performance on a cooling system which indicates a lack of radiator capacity. The available radiator capacity is only capable of flowing 8,764 kW, while the radiator requires a minimum capacity of 37,986 kW. Radiators used today need to be replaced with better capacity. The design of the body and sidepod where the design of the radiator is needed by the design and in the sidepod design, from the design that has been done is obtained good air flow through the separation of the wheels and front body to make the air flow to the radiator free from building or separating the flow from the front tire. what has been done, obtained by the body and sidepod with a drag of 8.758 N,the drag coefficient is 0.49, the lift force is 41.884 N and the lift coefficient is 0.135 at vehicle speed 14m/s.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSF 697.23 Ari d-1 2019 |
| Uncontrolled Keywords: | Aerodynamics, Computational fluid dynamics, Heat Exchanger, Sidepod. |
| Subjects: | T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL152.5 Motor vehicles Driving T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL521 Aerodynamics, Hypersonic. |
| Divisions: | Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis |
| Depositing User: | Hafidh Aldiza Arifin |
| Date Deposited: | 21 Oct 2024 06:19 |
| Last Modified: | 21 Oct 2024 06:19 |
| URI: | http://repository.its.ac.id/id/eprint/69487 |
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