Analisa Stabilitas Kapal Akibat Penataletakan Komponen Komponen Permesinan Pada Kapal Harbortug 2x2500 HP Dual Fuel Diesel Engine

Dzakwan, Shafwan (2021) Analisa Stabilitas Kapal Akibat Penataletakan Komponen Komponen Permesinan Pada Kapal Harbortug 2x2500 HP Dual Fuel Diesel Engine. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Seiring berjalannya teknologi, kapal menggunakan gas alam cair (LNG) sebagai bahan bakar mesin kapal yang bertujuan untuk effisiensi kapal. Oleh karena itu, dalam penelitian ini berfokus pada analisa stabilitas terhadap kapal harbortug dikawasan pelabuhan. Dalam penelitian ini dilakukan analisa stabilitas pada kapal dengan variasi metode fixed trim dan free trim. Dilakukan analisa dengan sistem dual fuel engine serta tanpa sistem dual fuel engine. Proses analisa diawali dengan menggambar model kapal, kemudian menghitung kembali berat kapal, setelah itu dilakukan analisa stabilitas akibat pengurangan komponen permesinan sesuai dengan aturan IMO code on Intact Stability A.749 18), Ch 3 – design criteria applicable to all ships. Hasil analisa stabilitas setelah pengurangan komponen maka pada saat kondisi 1 diperoleh nilai GM = 2,371 meter menjadi GM = 2,009 meter dan stabilitasnya memenuhi criteria. Pada kondisi 2 diperoleh nilai GM = 2,073 meter menjadi GM = 2,038 meter dan stabilitasnya memenuhi criteria. Pada kondisi 3 diperoleh nilai GM = 2,189 meter menjadi GM = 2,134 meter dan stabilitasnya memenuhi criteria. Pada kondisi 4 diperoleh nilai GM = 2,371 meter menjadi GM = 2,296 meter dan stabilitasnya memenuhi criteria. Setelah dilakukan analisa, metode fixed trim memiliki nilai draft AP dan FP yang sama sedangkan free trim to loadcase memiliki nilai draft AP dan FP yang berbeda. Selain itu analisa free trim memiliki nilai GZ lebih tinggi dibandingkan fixed trim
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As technology progresses, ships use liquefied natural gas (LNG) as fuel for ship engines aimed at ship efficiency. Therefore, this study focuses on stability analysis of harbor tug ships in the port area. In this study, stability analysis was carried out on the ship with variations of the fixed trim and free trim methods. Analyzed with dual fuel engine system and without dual fuel engine system. The analysis process begins with drawing a ship model, then recalculates the weight of the ship. After that, a stability
analysis was carried out due to the reduction of machining components in accordance with the IMO code on Intact Stability A.749 18 rules. The results of the stability analysis after reducing the components, when condition 1 is obtained, the value of GM = 2,351
meters becomes GM = 2.181 meters and the stability meets the criteria. In condition 2, the value of GM = 1.965 meters becomes GM = 2.009 meters and the stability meets the
criteria. In condition 3, the value of GM = 2.054 meters becomes GM = 2.134 meters and the stability meets the criteria. In condition 4, the value of GM = 2,286 meters becomes GM = 2,296 meters and the stability meets the criteria. After analysis, the fixed trim
method has the same AP and FP draft values, while the free trim to loadcase has different AP and FP draft values. In addition, the free trim analysis has a higher GZ value than the fixed trim

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Stabilitas, Harbortug, LNG, Dual-Fuel, Trim
Subjects:	V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM 464 Towboats. Tugboats V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM731 Marine Engines V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM761 Stability of ships
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Shafwan Dzakwan
Date Deposited:	02 Sep 2021 00:17
Last Modified:	02 Sep 2021 00:17
URI:	http://repository.its.ac.id/id/eprint/91236

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