Mahardika, Wizura Akmal (2019) Studi Eksperimen Drag Reduction Dengan Penerapan Metode Air Bubble-Lubricated System Pada Lambung Kapal Offshore Supply Vessel. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Industri pelayaran disinyalir sebagai salah satu kontributor utama emisi gas buang. Dalam rangka menurunkan tingkat emisi dan meminimalisir biaya operasional, studi rekayasa lambung kapal dengan sistem injeksi udara dilakukan oleh banyak peneliti. Sistem injeksi udara bekerja dengan prinsip mengurangi gaya gesek akibat viskositas fluida pada hambatan kapal. Eksperimen uji tarik kapal yang dilengkapi generator gelembung mikro dijalankan untuk mengetahui nilai pengurangan hambatan yang dapat dicapai. Sebuah kapal model dan sistem injektor gelembung dibuat secara khusus untuk memenuhi kebutuhan eksperimen. Perhitungan pengurangan hambatan menunjukan terjadi pengurangan hambatan hingga 33,49%. Penambahan kebutuhan kompressor untuk mengetahui nilai efisiensi menunjukan kebutuhan daya kompressor tidak lebih besar dibanding pengurangan yang terjadi.
Kata kunci: hambatan , gelembung mikro , injektor pelat berlubang
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Shipping industry is considered as one of major global gas emission factor. In order to pursue shipping with lower gas emission and less cost operation, air lubricated system on a ship’s hull has been developed throughout the world. Air lubricated system works by reducing the skin friction. In this study, a towing experiment of an Offshore Supply Vessel model complied with microbubble generator is conducted to investigate the drag reduction. A ship’s model and array-holes plate bubble generator spesifically made to accomodate the needs of the experiment. 33,49% maximum drag reduction is attained in this study and a further calculation shows the power reducted is bigger compared to added power due to compressor installment.
Key words : drag , microbubble , array-holes plate injector
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | drag , microbubble , array-holes plate injector |
| Subjects: | V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM161 Ships--Hydrodynamics V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM163 Hulls (Naval architecture) V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM751 Resistance and propulsion of ships |
| Divisions: | Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36201-(S1) Undergraduate Thesis |
| Depositing User: | Wizura Akmal Mahardika |
| Date Deposited: | 14 Jun 2024 00:56 |
| Last Modified: | 14 Jun 2024 00:59 |
| URI: | http://repository.its.ac.id/id/eprint/68765 |
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