Fauzy, Achmad Nur (2025) Perancangan Casing Dan Sistem Kedap Untuk Hub Turbin Bawah Laut Kapasitas 1Kw. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Turbin arus bawah laut merupakan salah satu sistem pembangkit energi terbarukan yang memanfaatkan aliran laut sebagai sumber energi mekanik. Salah satu komponen utama dalam sistem ini adalah casing hub turbin, yang berfungsi melindungi komponen internal dari tekanan eksternal dan lingkungan laut. Penelitian ini bertujuan untuk merancang casing dan sistem kedap pada hub turbin arus bawah laut berkapasitas 1 kW dengan pendekatan perhitungan manual dan simulasi berbasis Finite Element Analysis (FEA). Perancangan mengacu pada standar ASME Section VIII Div. 1, dengan material utama Stainless Steel AISI 316 dan tekanan kerja sebesar 0,05 MPa. Berdasarkan hasil perhitungan dan simulasi FEA, casing dengan ketebalan 5 mm menunjukkan tegangan maksimum yang terjadi masih berada di bawah tegangan ijin material, serta mampu menahan tekanan hingga 1.8 MPa, yang lebih besar dari tekanan kerja sistem. Dengan demikian, desain casing dinyatakan aman secara struktural. Untuk sistem sealing, penggunaan O-Ring dengan penampang 5 mm berdasarkan hasil simulasi terbukti memberikan kinerja kedap yang lebih baik dalam menjaga kekedapan sambungan flange terhadap tekanan luar. Penelitian ini menghasilkan desain akhir berupa model 3D dan gambar teknik 2D yang layak digunakan untuk mendukung pengembangan turbin arus bawah laut skala kecil.
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Marine current turbines are one of the renewable energy systems that utilize ocean currents as a source of mechanical energy. One of the main components in this system is the turbine hub casing, which functions to protect internal components from external pressure and the marine environment. This study aims to design the casing and sealing system of a 1 kW marine current turbine hub using a combination of manual calculations and Finite Element Analysis (FEA) simulation. The design refers to the ASME Section VIII Division 1 standard, with Stainless Steel AISI 316 as the primary material and a working pressure of 0.05 MPa. Based on the results of the calculations and FEA simulation, a casing thickness of 5 mm produces a maximum stress that remains below the allowable stress limit and is capable of withstanding pressures up to 1.8 MPa, which exceeds the system’s working pressure. Therefore, the casing design is considered structurally safe. For the sealing system, the use of a 5 mm cross-sectional O-Ring has proven, through simulation, to provide better sealing performance in maintaining the tightness of the flange connection against external pressure. This study results in a final design consisting of a 3D model and 2D technical drawings that are suitable for supporting the development of small-scale marine current turbines
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Turbin bawah laut, casing, sistem kedap, analisis elemen hingga, energi terbarukan, O-Ring, Underwater turbine, casing, sealing system, finite element analysis, renewable energy. |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ808 Renewable energy sources. Energy harvesting. T Technology > TJ Mechanical engineering and machinery > TJ828 Wind turbines T Technology > TJ Mechanical engineering and machinery > TJ930 Pipelines (General). Underwater pipelines. T Technology > TS Manufactures > TS283 Pressure vessels. V Naval Science > VC Naval Maintenance > VC 270-279 Equipment of vessels, supplier,allowances,etc |
| Divisions: | Faculty of Vocational > Mechanical Industrial Engineering (D4) |
| Depositing User: | Achmad Nur Fauzy |
| Date Deposited: | 01 Aug 2025 07:56 |
| Last Modified: | 01 Aug 2025 07:56 |
| URI: | http://repository.its.ac.id/id/eprint/124512 |
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