Analisa Pengaruh Variasi Pitch Ratio Pada Controllable Pitch Propeller Kapal Mini Lng Carrier Terhadap Engine Propeller Matching Menggunakan Metode Computational Fluid Dynamics

Hariyadi, Mohamad Irfan (2022) Analisa Pengaruh Variasi Pitch Ratio Pada Controllable Pitch Propeller Kapal Mini Lng Carrier Terhadap Engine Propeller Matching Menggunakan Metode Computational Fluid Dynamics. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Salah satu parameter penting dalam propeller yang mempengaruhi kecepatan kapal dan kesesuaian dengan mesin (engine matching) adalah nilai pitch propeller. Tugas Akhir ini mengevaluasi kinerja propeller dengan jenis CPP pada Kapal Mini LNG Carrier berdasarkan variasi pitch ratio. Metode komputasi dinamika fluida (CFD) digunakan untuk menghitung thrust dan torque propeller dengan menggunakan model aliran turbulen EASM (Explicit Algebraic Stress Model). Hasil simulasi digunakan untuk membuat diagram KT – KQ – J dan divalidasi dengan data eksperimen open water test yang telah dilakukan oleh BTH-BPPT. Simulasi dilakukan pada propeller tipe Wageningen B-Screw Series dengan variasi pitch ratio (P/D) sebesar 0.6, 0.8, 1.0, 1.2 dan 1.4. Hasil pengolahan data simulasi diperoleh P/D yang paling optimum sebesar 1.144. Pada P/D 1.144 Kapal Mini LNG Carrier berada pada kecepatan maksimumnya menggunakan BHP MCR mesin sebesar 554 KW dengan 1787 RPM dan menggunakan BHP SCR mesin sebesar 551 KW dengan 1885 RPM dengan efisiensi propeller sebesar 0.5026.
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One of the important parameters in the propeller that affects ship speed and engine matching is the propeller pitch value. This final project evaluates the performance of the propeller with the CPP type on the Mini LNG Carrier Ship based on variations in pitch ratio. The computational fluid dynamics (CFD) method is used to calculate propeller thrust and torque using the EASM (Explicit Algebraic Stress Model) turbulent flow model. The simulation results are used to create a KT – KQ – J diagram and validated with the open water test experimental data that has been carried out by BTH-BPPT. Simulations were carried out on the Wageningen B-Screw Series propeller with variations in pitch ratio (P/D) of 0.6, 0.8, 1.0, 1.2 and 1.4. The results of the simulation data processing obtained the most optimum P/D of 1.144. At P/D 1.144 Mini LNG Carrier Ship is at their maximum speed using a BHP MCR engine of 554 KW with 1787 RPM and using a BHP SCR engine of 551 KW with 1885 RPM with a propeller efficiency of 0.5026.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Controllable Pitch Propeller, Open Water Test, Computational Fluid Dynamics, Engine Propeller Matching.
Subjects:	V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering
Divisions:	Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36201-(S1) Undergraduate Thesis
Depositing User:	Mohamad Irfan Hariyadi
Date Deposited:	15 Feb 2022 02:39
Last Modified:	31 Oct 2022 03:29
URI:	http://repository.its.ac.id/id/eprint/94027

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