FIKRY, IZZUL (2019) Analisa Pengaruh Perubahan Span To Chord Ratio Propeller Boss Cap Fins Pada Propeller Wageningen Series C4-40 Dengan Metode CFD. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kapal adalah salah satu alat transportasi yang sangat banyak digunakan di era ini. Untuk mengoperasikan sebuah kapal, tentunya dibutuhkan sumber energi berupa bahan bakar yang tidak sedikit. Untuk meminimalkan konsumsi bahan bakar maka dilakukanlah usaha untuk menurunkan konsumsi bahan bakar. Propeller Boss Cap Fins adalah salah satu usaha peningkatan efisiensi, khususnya dalam bidang propulsi kapal. Propeller Boss Cap Fins atau biasa disebut PBCF adalah salah satu teknologi yang menggantikan teknologi boss cap propeller yang terlebih dahulu ada. Peningkatan efisiensi tentunya dapat berdampak pada konsumsi bahan bakar. Penelitian ini menjabarkan mengenai perubahan efisiensi, gaya dorong, torsi dan fenomena aliran pada propeller setelah perubahan span to chord fins dengan bentuk fin berupa NACA foil. Penelitian ini diawali dengan menentukan dimensi propeller beserta modelnya. Langkah selanjutnya adalah perancangan dan penggambaran propeller boss cap fins dengan memodifikasi span to chord ratio fin tersebut. Langkah terakhir adalah menganalisa performa propeller dengan software berbasis computation fluid dynamic. Dari perubahan span to chord ratio PBCF diyakini bahwa dapat meningkatkan efisiensi, daya dorong, torsi propeller, serta meminimalkan hub vortex. Simulasi dilakukan pada empat variasi span to chord ratio PBCF, yakni 0.17, 0.23, 0.29, dan 0.34. Dari penelitian ini dapat disimpulkan bahwa propeller boss cap fins dapat meningkatkan thrust, torque, dan efisiensi, namun perubahan span to chord ratio PBCF tidak berpengaruh banyak terhadap perubahan thrust, torque, dan efisiensi propeller.Selain itu, memperbesar span to chord ratio PBCF dapat mengurangi hub vortex pada propeller.
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Ships are one of the vehicles that are very widely used in this era. To operate a ship, the energy sources are needed in the form of fuel is not small. To minimize fuel consumption efforts are made to reduce fuel consumption. Propeller Boss Cap Fins is one of the efforts to increase efficiency, especially in the field of ship propulsion. Boss Cap Fins Propeller or commonly called PBCF is one of the technologies that replaces the boss cap propeller technology that first exists. Increasing efficiency can certainly have an impact on fuel consumption. This study describe changes in efficiency, thrust, torque and the phenomenon of flow in the propeller after changes in span to chord ratio of fins with a fin form in the form of NACA foil. This research begins with determining the dimensions of the propeller and its model. The next step is to design and draw the boss cap fins propeller by modifying the span to chord ratio of the fins. The final step is analyzing propeller performance with software based on fluid dynamic computation. It is believed that changes in the PBCF span to chord ratio can improve efficiency, thrust, propeller torque, and minimize the hub vortex. Simulations are carried out on four variations of the span to chord ratio, namely 0.17, 0.23, 0.29 and 0.34. From this study it can be concluded that the propeller boss cap fins can increase thrust, torque, and efficiency, but the changes of span to chord ratio PBCF have not much effect on thrust, torque, and propeller efficiency. Beside that, increasing the PBCF span to chord ratio can reduce the hub vortex on the propeller.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Perubahan span to chord ratio, propeller boss cap fins, CFD |
| Subjects: | V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM751 Resistance and propulsion of ships V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM773 Ship propulsion, Electric |
| Divisions: | Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis |
| Depositing User: | Izzul Fikry |
| Date Deposited: | 02 Jul 2024 03:39 |
| Last Modified: | 02 Jul 2024 03:39 |
| URI: | http://repository.its.ac.id/id/eprint/69036 |
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