Analisa Pengaruh Modifikasi DTMB 4382 Menjadi Tip Rake Propeller (TRP) Terhadap Kinerja Propeller Dengan Metode CFD

Sidqi, Mikhail Ali (2018) Analisa Pengaruh Modifikasi DTMB 4382 Menjadi Tip Rake Propeller (TRP) Terhadap Kinerja Propeller Dengan Metode CFD. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penggunaan Energy Saving Device (ESD) pada propeller merupakan salah satu cara yang berfungsi untuk menambahkan efisiensi pada sistem propulsi. Selain meningkatkan efisiensi, ESD juga berfungsi untuk meningkatkan gaya dorong dan torsi pada propeller. Salah satu jenis ESD adalah Tip Raked Propeller (TRP) yang dimana ujung pada daun propeller dibengkokan pada sudut-sudut tertentu. Ada dua macam tipe TRP yaitu Forward Tip Raked Propeller (FTRP) ujung daun propeller dibengkokan ke arah suction side dan Backward Tip Rake Propeller (BTRP) ujung daun propeller di bengkokan ke arah Preassure Side. Inovasi FTRP dikembangkan oleh Andersen et al, propeller tersebut diberi nama “KAPPEL Propeller”. Sedangkan BTRP dikembangkan dari model TVF Propellers, diberi nama Contracted Tip Loaded (CLT). Tujuan dari penilitian ini adalah untuk melihat bagaimana pengaruh modifikasi DTMB 4382 menjadi TRP terhadap kinerja propeller dengan menggunakan metode Computational Fluid Dynamic (CFD). Dari penilitian ini dapat disimpulkan bahwa, hasil yang optimal ada pada model FTRP Tipe 1 dengan naiknya nilai gaya dorong dan torsi yang signifikan, akan tetapi efisiensi dari model tersebut tidak terlalu signifikan dengan perbandingan efisiensi rata-rata setiap J 0.04% dari model DTMB 4382. Hal tersebut disebabkan karena nilai torsi pada model tersebut naik. Naiknya nilai gaya dorong disebabkan karena distribusi tekanan pada sisi face lebih besar. ======================================================================================================= The use of Energy Saving Device (ESD) on propeller serves to enhance the efficiency of propulsion system. In addition to improving efficiency, ESD also works to improve the thrust and force of the propeller. One type of ESD is the Tip Raked Propeller (TRP) in which the blade tip of the propeller is bent at certain angles. There are two types of TRP; Forward Tip Raked Propeller (FTRP) and Backward Tip Raked Propeller (BTRP). The blade’s tip of FTRP is bent towards the suction side, meanwhile for BTRP the blade’s tip is bent towards the pressure side. The innovation of FTRP was developed by Andersen et al, the propeller was named "KAPPEL Propeller". The BTRP is developed from the TVF Propellers model, named Contracted Tip Loaded (CLT). The purpose of this research is to identify the effect of DTMB 4382 modification to TRP on propeller’s performance using Computational Fluid Dynamic (CFD) method. From this research it can be concluded that on FTRP Type 1 model, the thrust and torque increase significantly, although the modification does not result on the improvement of propeller efficiency; with the average increase in efficiency of 0.04% on each J compared to DTMB 4382. This is because the value of the torque is increased. Advancement of thrust force values are due to the larger pressure distribution on the face side.

Item Type: Thesis (Undergraduate)
Additional Information: RSSP 623.873 Sid a-1 3100018077950
Uncontrolled Keywords: DTMB 4382, Energy Saving Device (ESD), Tip Raked Propeller (TRP), CFD
Subjects: V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM751 Resistance and propulsion of ships
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: Mikhail Ali Sidqi
Date Deposited: 03 Dec 2020 02:28
Last Modified: 03 Dec 2020 02:28
URI: https://repository.its.ac.id/id/eprint/56157

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