Sarage, Pemal (2018) Ballast Free System Analysis on 20000 DWT Bulk Carrier Vessel. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Air balas dianggap sebagai faktor utama menyebarnya spesies asing perairan di seluruh dunia. Paradigma pemikiran yang baru pertama kali dikembangkan oleh Universitas Michigan untuk melihat kondisi ballast sebagai perubahan daya apung, bukan penambahan berat kapal, untuk membawa kapal ke desain balast yang aman. Tunnel balas akan ditambahkan ke model kapal sebagai jalur aliran air balas. Jenis kapal telah ditentukan yaitu Bulk Carrier dengan LOA 159 m. Tunnel ini dimodelkan dengan mempertimbangkan kebutuhan akan air balas pada kapal. Tunnel dimodelkan dengan bentuk pipa memanjang dan dimensi sesuai air ballast yang dibutuhkan. Untuk menganalisa berbagai efek, maka 3 model telah dibuat. Model ini kemudian diuji pada ansys dengan kecepatan 13 knot. Hasil Simulasi menunjukkan model resistansi yang dihasilkan dari model A adalah 322.309 kN, dan model b menghasilkan resistansi 222.884 kN, dan dalam model c menghasilkan resistansi 251.883 kN. Sementara perkiraan waktu untuk CFT (Complete Flushing Time) dalam model A membutuhkan 0,340205484 jam, model b membutuhkan 27,12477396 detik, dan model c membutuhkan waktu 24,31118314 detik. Dampak biaya karena sistem ballast free terintegrasi kemudian dianalisis. Analisis ini dikhususkan untuk analisis perubahan dalam modal belanja dan biiaya operasional sebelum dan sesudah menerapkan sistem ballast free. Hasil penelitian menunjukkan bahwa kapal bulk carrier dengan sistem ballast free dapat memangkas belanja modal sebesar Rp 5.184.950.000, -. Sementara dalam pengeluaran operasi, kapal dengan sistem ballast free menunjukkan biaya tambahan sebesar Rp 6.869.491.800, - per tahun.
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Ballast Water are considered the main factor for the transfer of non-indigenous species of waters around the world. A new paradigm of thought firstly developed by Michigan University to see the ballast condition as a change of buoyancy, not weight gain, to bring the vessel to its safe ballast draft. The ballast tunnel will be added to the ship model as a ballast water flow path. The type of ship has been determined as Bulk Carrier with LOA 159 m. This tunnel is modeled by considering the need for ballast water on the vessel. Tunnel modeled with longitudinal pipe shape and dimensions ajjusted to the needs of the ballast water required. To analyze the various effects of resistance , then 3 models have been made. Model is then tested on ansys with a speed of 13 knots. Simulation Result shows model a yielding resistance of 322.309 kN, and model b yields resistance of 222,884 kN, and in model c yields resistance of 251.883 kN. While the estimated time for CFT (Complete Flushing Time) in model a requires 0.340205484 hours, model b requires 27.12477396 seconds, and model c takes 24.31118314 seconds. Cost impact due to integrated ballast free system then be analyzed. The analysis is devoted to the analysis of changes in capital expenditure and operational expenditures before and after applying the ballast free system. The results showed that bulk carrier vessels with ballast free systems could cut capital expenditure of Rp 5,184,950,000,-. While in operating expenditure, vessels with ballast free system indicate an additional charge of Rp 6,869,491,800,- per year.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Ballast Free Ship, Resistance, Computational Fluid Dynamic |
| Subjects: | V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM1 Ballast (Ships) V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM161 Ships--Hydrodynamics V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM751 Resistance and propulsion of ships |
| Divisions: | Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis |
| Depositing User: | Sarage Pemal |
| Date Deposited: | 22 Jul 2024 06:56 |
| Last Modified: | 22 Jul 2024 06:56 |
| URI: | http://repository.its.ac.id/id/eprint/56831 |
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