Wirautama, Galura (2018) ANALISIS RESPON DINAMIS NREL 5MW FLOATING OFFSHORE WIND TURBINE DENGAN VARIASI FLOATER DEEPCWIND SEMISUBMERSIBLE, ITI ENERGY BARGE, DAN MIT NREL TLP DI LAUT NATUNA. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Turbin angin yang dibangun di lepas pantai memiliki kelebihan dibandingkan di darat yaitu menghasilkan energi yang lebih konsisten. Namun, diperlukan analisa dinamis yang mencakup keseluruhan struktur untuk mengetahui karakteristik dan performa turbin angin di lepas pantai, terutama yang terapung.
Penelitian ini membahas mengenai NREL 5 MW Wind Turbine yang diinstalasi di Laut Natuna dengan variasi floater meliputi MIT NREL TLP, DeepCWind semi – submersible, dan ITI Energy Barge. Analisis dilakukan menggunakan software open source FAST V.8 yang memiliki kemampuan menghitung respon dinamis struktur secara coupled aero-hydro-servo-elasto. Root Mean Square (RMS), spektra respon struktur serta besar gaya tarik tali pada sistem tambat dan jumlah energi yang dihasilkan oleh tiap konfigurasi struktur turbin angin dianalisis. Hasil analisis menunjukkan bahwa konfigurasi struktur turbin angin dengan floater MIT NREL TLP memiliki karakteristik gerak paling baik pada seluruh mode gerak surge, sway, heave, roll, pitch, dan yaw, diikuti DeepCWind dan ITI Energy Barge. Hasil analisis gaya tarik tali tambat menunjukkan bahwa gaya tarik terbesar yang dialami yaitu sebesar 11750 kN pada konfigurasi DeepCWind, 1939 kN untuk ITI Energy Barge, dan 6580 kN untuk MIT NREL TLP. Untuk energi yang dihasilkan, ITI Barge memiliki capacity factor sebesar 37.40%, MIT NREL TLP sebesar 36.53% dan DeepCWind sebesar 36.32%.
Kata Kunci: Offshore Wind Turbine , NREL 5 MW Baseline, Respon Spektra, Capacity Factor
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Wind Turbines built offshore have several advantages over those built on lands, including generating energy more consistently. However, a fully – coupled dynamic analysis is required to understand the characteristics and performance of floating offshore wind turbines.
This final project discusses the NREL 5 MW Wind Turbine installed in the Natuna Sea with a variety of floating substructures designed by the National Renewable Energy Lab (NREL). The substructures are MIT NREL TLP, DeepCWind Semisubmersible, and ITI Energy Barge. A time – domain analysis is carried out using the open source FAST v8 software which has the ability to calculate a fully coupled aero – hydro – servo – elasto analysis of the structure. The motion Root Mean Square (RMS), spectral response, and the mooring tension and energy generation of each structural configuration in analysed. The results indicate that the FOWT with MIT NREL TLP floater has the best motion response in all surge, sway, heave, roll, pitch, yaw motions with RMS of 1.362m, 1.137m, 0.41m, 0.006o, 0.008o, and 0.250o, respectively. The line tension analysis results show that the highest tension for each substructure is 11750 kN for DeepCWind, 1939 kN for ITI Energy Barge, and 6580 kN for MIT NREL TLP. ITI Energy Barge has the best energy generation capability with a capacity factor of 37.40% followed by MIT NREL TLP with 36.53% and DeepCWind with 36.32%.
Key Words: Offshore Wind Turbine, NREL 5 MW Baseline, Spectra Response, Capacity Factor
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSKe 621.406 Wir a-1 3100018078823 |
| Uncontrolled Keywords: | Offshore Wind Turbine, NREL 5 MW Baseline, Spectra Response, Capacity Factor |
| Subjects: | T Technology > TC Hydraulic engineering. Ocean engineering > TC147 Ocean wave power. T Technology > TC Hydraulic engineering. Ocean engineering > TC1665 Offshore structures--Materials. T Technology > TC Hydraulic engineering. Ocean engineering > TC1680 Offshore structures T Technology > TJ Mechanical engineering and machinery > TJ828 Wind turbines T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1001 Production of electric energy or power |
| Divisions: | Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis |
| Depositing User: | Galura Wirautama |
| Date Deposited: | 13 Aug 2021 04:54 |
| Last Modified: | 13 Aug 2021 04:54 |
| URI: | http://repository.its.ac.id/id/eprint/53717 |
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