Ramadhan, Lazuardy Iqbal (2021) Analisis Pengaruh Bentuk Foil Flow Disturbance Terhadap Performa Turbin Darrieus. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Perkembangan penduduk menyebabkan permintaan terhadap energi juga semakin tinggi, sedangkan sumber daya untuk penyediaan energi seperti batu bara dan minyak bumi lambat laun akan semakin terkuras dan tidak mampu mengcover seluruh permintaan yang ada, sedangkan pengembangan dalam sumber energi terbarukan belum memiliki tingkat efisiensi setinggi dengan menggunakan batu bara maupun minyak bumi. Indonesia dikenal dengan potensi lautnya yg besar termasuk pada sector energi yang saat ini sedang dikembangkan pengelolaannya. Untuk mengelola sumber daya energi laut diperlukan teknologi untuk mengambil energi tersebut seperti turbin yang memanfaatkan arus laut sebagai penggeraknya. Turbin sendiri terdapat 2 tipe yang mengandalkan gaya drag dan gaya lift, untuk gaya lift memiliki spesifikasi coefficient power yang lebih tinggi namun disisi lain memerlukan cut-in speed yang cukupp tinggi juga untuk menggerakkan rotornya. Pada penelitian kali ini bertujuan untuk mengurangi cut-in speed tersebut dan meningkatkan kemampuan turbin pada arus rendah dengan menggunakan foil flow disturbance dan memvariasikan angle of attack dari foil tersebut. Metode Penelitian dengan pendekatan numerik (CFD) dilakukan dengan menggunakan Ansys Fluent. Turbin yang digunakan adalah tipe Darrieus dengan tipe aliran transient. Hasil dari penelitian ini didapatkan meningkatnya performa turbin dengan meninjau peningkatan Coefficient Power pada simulasi numerik tersebut, sehingga pemberian foil flow disturbance tipe DU 06 W 200 memberikan pengaruh yang positif terhadap performa turbin.
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Population development causes demand for energy is also higher, while resources for the provision of energy such as coal and petroleum will gradually be depleted and unable to cover all existing demand, while development in renewable energy sources does not have the highest level of efficiency compared to using coal or petroleum. Indonesia is known for its great sea potential including in the energy sector that is currently being developed management. To manage marine energy resources, technology is needed to extract such energy such as turbines that utilize ocean currents as their drivers. The turbine itself has 2 types that rely on drag force and lift style, for the lift style has a higher coefficient power specification but on the other hand requires a high enough cut-in speed also to drive the rotor. In this study aimed to reduce the cut-in speed and improve the ability of turbines at low currents by using foil flow disturbance and varying the angle of attack of the foil. Research methods with numerical approach (CFD) are done using Ansys Fluent. The turbine used is Darrieus type with transient flow type. The results of this study obtained increased turbine performance by reviewing the increase of Coefficient Power in the numerical simulation, so that the provision of foil flow disturbance type DU 06 W 200 has a positive influence on turbine performance.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | foil flow disturbance, coefficient power, Darrieus, CFD |
| Subjects: | T Technology > TC Hydraulic engineering. Ocean engineering > TC1680 Offshore structures T Technology > TC Hydraulic engineering. Ocean engineering > TC555 Spillways. Energy dissipation. Hydraulic jump. |
| Divisions: | Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis |
| Depositing User: | Lazuardy Iqbal Ramadhan |
| Date Deposited: | 14 Aug 2021 06:51 |
| Last Modified: | 14 Aug 2021 06:51 |
| URI: | http://repository.its.ac.id/id/eprint/86339 |
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