ANALISIS PENGARUH PENGGUNAAN NOZZLE DAN PENAMBAHAN END PLATE PADA PROPELLER K4-70

Pradana, GamaYoga (2024) ANALISIS PENGARUH PENGGUNAAN NOZZLE DAN PENAMBAHAN END PLATE PADA PROPELLER K4-70. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 5019221153_Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 October 2026. Download (3MB) | Request a copy

Abstract

Merancang kapal melibatkan pengembangan sistem propulsi, dengan propeller sebagai komponen kunci. Propeller mengubah daya mesin utama menjadi gaya dorong, memungkinkan kapal bergerak. Desain propeller yang efektif meningkatkan efisiensi dan mengurangi konsumsi bahan bakar. Industri kapal global berfokus pada desain propeller untuk meningkatkan efisiensi sistem propulsi. Berbagai jenis, seperti Tip Raked Propeller, Propeller Boss Cap Fins, dan AHT Nozzle, telah dikembangkan untuk tujuan ini. Desain baling-baling propeller yang berbeda memiliki karakteristik unik yang sesuai dengan jenis kapal dan kebutuhan tertentu. Untuk meningkatkan efisiensi propeller Kaplan K4-70 pada Tug Boat, tipe Tip Raked Propeller akan ditambahkan untuk meningkatkan thrust. Tipe ini memiliki ujung baling-baling yang bengkok. Forward Tip Raked Propeller, yang disebut "KAPPEL Propeller,". sedangkan Backward Tip Rake Propeller, disebut "Contracted Tip Loaded," dikembangkan dari model Tip Raked Propeller sehingga dapat menunjukkan bahwa Contracted Tip Loaded dengan variasi sudut end plate dan sudut rake meningkatkan thrust dan torsi, sehingga meningkatkan efisiensi propeller. Penelitian ini memodifikasi propeller Kaplan K4-70 dengan Contracted Tip Loaded dan tambahan nozzle untuk meningkatkan thrust. Mengacu pada penelitihan sebelumnya nozzle yang optimal memiliki rasio panjang terhadap diameter 0,8 dan sudut dihedral 15 derajat. Metode Computational Fluid Dynamics (CFD) digunakan untuk menganalisis kinerja dan efisiensi propeller yang dimodifikasi. Hasil menunjukkan bahwa penambahan ENDP meningkatkan thrust pada sudut tertentu, dengan thrust tertinggi 158858.321 N untuk panjang ENDP 48 mm dan sudut 5° dengan menggunakan nozzle 19A modified. Konfigurasi terbaik untuk thrust dan torsi tinggi dengan efisiensi yang masuk akal adalah panjang ENDP 48 mm dan sudut 5°, serta nozzle dengan rasio panjang 0,8 dan sudut dihedral 10 derajat.
========================================================================================================================
Designing ships involves the development of propulsion systems, with the propeller as a key component. The propeller converts the main engine's power into thrust, enabling the ship to move. Effective propeller design increases efficiency and reduces fuel consumption. The global ship industry focuses on propeller design to enhance propulsion system efficiency. Various types, such as Tip Raked Propeller, Propeller Boss Cap Fins, and AHT Nozzle, have been developed for this purpose. Different propeller blade designs have unique characteristics suited to specific ship types and requirements. To improve the efficiency of the Kaplan K4-70 propeller on a Tug Boat, a Tip Raked Propeller type will be added to increase thrust. This type features bent blade tips. The Forward Tip Raked Propeller, known as the "KAPPEL Propeller," and the Backward Tip Rake Propeller, called the "Contracted Tip Loaded," evolved from the Tip Raked Propeller model, demonstrating that the Contracted Tip Loaded with variations in end plate angle and rake angle increases thrust and Torque, thus enhancing propeller efficiency. This study modifies the Kaplan K4-70 propeller with the Contracted Tip Loaded and an additional nozzle to increase thrust. Referring to previous research, the optimal nozzle has a length-to-diameter ratio of 0.8 and a dihedral angle of 15 degrees. The Computational Fluid Dynamics (CFD) method is used to analyze the performance and efficiency of the modified propeller. Results show that adding an ENDP increases thrust at certain angles, with the highest thrust of 158858.321 N for an ENDP length of 48 mm and an angle of 5° and a nozzle 19A modified. The best configuration for high thrust and Torque with reasonable efficiency is an ENDP length of 48 mm and an angle of 5°, along with a nozzle with a length ratio of 0.8 and a dihedral angle of 10 degrees.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	ENDP, nozzle, Computational Fluid Dynamics (CFD), thrust, Torque, efficiency.
Subjects:	V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM753 Propellers
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Gama Yoga Pradana
Date Deposited:	06 Aug 2024 19:01
Last Modified:	06 Aug 2024 19:01
URI:	http://repository.its.ac.id/id/eprint/113715

Actions (login required)

View Item