Analisa Aliran Fluida Pada Buritan Lambung KM. Kelola Mina Makmur 150 GT Berdasar Engine Propeller And Hull Matching Dengan Menggunakan Metode Actuator Disc Propeller

Sahid, Anwar (2019) Analisa Aliran Fluida Pada Buritan Lambung KM. Kelola Mina Makmur 150 GT Berdasar Engine Propeller And Hull Matching Dengan Menggunakan Metode Actuator Disc Propeller. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Sistem propulsi terdiri dari tiga bagian pokok yaitu penggerak utama, sistem transmisi dan alat penggerak kapal (propeller), perancangan ketiga bagian ini sangat bergantung dari bentuk lambung kapal, khususnya area kerja propeller. Permasalahan klasik yang umumnya timbul dalam perancangan sistem propulsi adalah tidak tercapainya kecepatan operasi yang direncanakan atau rendahnya efisiensi propulsi yang dihasilkan. Fenomena ini juga banyak dialami kapal-kapal yang dibangun secara tradisional. Penelitian ini adalah kajian desain konfigurasi peletakan propeller atau propeller clearance pada kapal ikan 150 GT, khususnya terhadap peningkatan efisiensi propulsi kapal. Simulasi dilakukan menggunakan software Numeca Fine Marine. Hasil penelitian menggunakan metode actuator disk propeller yang memodelkan efek baling-baling tanpa memodelkan baling-baling nyata. Optimaliasasi secara langsung akan dihitung dengan menggunakan metode CFD dari masing-masing variasi konfigurasi peletakan propeller menunjukkan bahwa besaran efisiensi propulsi yang dihasilkan sangat bergantung pada jarak peletakan propeller. Efisiensi propulsi yang paling optimal terjadi pada jarak 0.738 m dari poros kemudi dengan nilai Dprop = 0.88, KT = 0.22, KQ = 0.028, dan J = 0.40 selain itu memiliki advance velocity yang divisualisasikan dengan nilai Va = 10.6 knot yang memiliki efisiensi propulsi 50%, dimana nilai tersebut akan berkurang sesuai pengurangan jarak tersebut. Tidak optimalnya efisiensi propulsi yang dihasilkan pada kondisi peletakan dengan jarak antara -0.162 – 0.438 m dari poros kemudi. Hal tersebut dikarenakan sudut kemiringan antara masuknya air dengan longitudinal axis lambung kapal bagian buritan kapal melebihi ketentuan yang disyaratkan.
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The propulsion system consists of three main parts namely the main drive, the transmission system and propeller, the design of these three parts is very dependent on the hull model, especially the propeller work area. The problem that generally arises in the design of a propulsion system is not achieving the speed of the planned operation or the low efficiency of the propulsion produced. This phenomenon is also experienced by many traditionally built vessels. This study is a design of the configuration of laying propeller or propeller clearance on 150 GT fishing vessels, especially towards increasing ship propulsion efficiency. Simulation is done using Numeca Fine Marine software. The results of the study used a propeller disk actuator method that modeled the propeller effect without modeling a real propeller. Direct optimization will be calculated using the CFD method of each variation of the propeller laying configuration indicating that the amount of propulsion efficiency produced is very dependent on the propeller laying distance. The most optimal propulsion efficiency occurs at a distance of 0.738 m from the steering shaft with a Dprop = 0.88, KT = 0.22, KQ = 0.028, and J = 0.40 besides having an advance velocity visualized with a Va = 10.6 knots which has a 50% propulsion efficiency, which the value will decrease according to the reduction in distance. The less efficiency of the propulsion produced in the laying between -0.162 - 0.438 m from the steering shaft. This is because the slope angle between the entry of water and the longitudinal axis of the ship's hull on the stern exceeds the required conditions.

Item Type:	Thesis (Undergraduate)
Additional Information:	RSSP 623.812 45 Sah a-1 2019
Uncontrolled Keywords:	Kapal Ikan 150 GT, Propeller Clearance, Actuator Disk Proppeller, Efisiensi Propulsi
Subjects:	T Technology > T Technology (General) > T57.62 Simulation V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM753 Propellers V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM773 Ship propulsion, Electric
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Anwar Sahid
Date Deposited:	14 Dec 2021 05:36
Last Modified:	14 Dec 2021 05:36
URI:	http://repository.its.ac.id/id/eprint/61678

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