Ezekiel, Andreas Lambok (2025) Optimasi Trim Kapal Oil Product Tanker 17.500 DWT GP Dengan Analisis CFD Guna Mengurangi Konsumsi Bahan Bakar Dan Emisi CO2 Dalam Tujuan Memenuhi Kriteria CII. Other thesis, Institut Teknologi Sepuluh Nopember.
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5019211136_Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 April 2027. Download (5MB) | Request a copy |
Abstract
Penelitian ini menganalisis pengaruh trim terhadap performa kapal Oil Product Tanker 17.500 DWT, berfokus pada tahanan, konsumsi bahan bakar, dan penilaian CII (Carbon Intensity Indicator). Pada pengujian dengan variasi kecepatan 8 knot, 10 knot, dan 12 knot yang merupakan operational speed, ditemukan bahwa kondisi trim +1 m memberikan reduksi tahanan terbesar masing-masing 13%, 9%, dan 2% apabila dibandingkan kondisi even keel. Terkait konsumsi bahan bakar, penghematan optimal terjadi pada trim -1 m untuk kecepatan 10 knot dengan penghematan 1%, dan trim -0.5 m untuk kecepatan 12 knot dengan penghematan 5%. Manajemen trim dilakukan dengan konfigurasi trim berbeda, diukur dari draft haluan. Meskipun penerapan trim tidak meningkatkan CII kapak, hal ini dapat membantu kapal memenuhi CII Requirement hingga tahun 2028. Tanpa penerapan trim, (kondisi even keel) rating CII kapal dikalkulasi akan turun dari C menjadi D pada tahun 2029, dan pada tahun 2027 sudah tidak memenuhi persyaratan CII walaupun masih pada rating C.
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This research investigates the influence of trim on the performance characteristics of a 17,500 DWT Oil Product Tanker, focusing on resistance, fuel consumption, and Carbon Intensity Indicator (CII) assessment. Testing conducted at operational speeds of 8, 10, and 12 knots revealed that a trim condition of +1 m achieved maximum resistance reductions of 13%, 9%, and 2% respectively, relative to the even keel condition. Regarding fuel consumption, optimal efficiency was attained with a -1 m trim at 10 knots, yielding a 1% reduction, while a -0.5 m trim at 12 knots achieved a 5% reduction in fuel consumption. Trim management was implemented using varying trim configurations, measured from the forward draft. Although trim implementation did not enhance the vessel's CII rating, the findings indicate that this approach can facilitate compliance with CII Requirements through 2028. Without trim implementation (even keel condition), calculations indicate that the vessel's CII rating will decline from C to D by 2029, and despite maintaining a C rating through 2027, the vessel will no longer meet CII requirements.
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