Soebari, Hanna Anie Sharlene Rayitno (2018) Pemetaan Awal Potensi Energi Laut di Pantai Selatan Pulau Jawa Menggunakan Pemodelan Hidrodinamika. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Sumber energi nonkonvensional terbarukan yang dapat dimanfaatkan dari laut adalah arus laut, pasang surut, gradien temperatur laut (ocean thermal energy conversion/OTEC), dan gelombang laut. Penelitian ini menganalisis kecepatan arus, ketinggian gelombang, dan rentang pasang surut yang dapat dikonversi menjadi energi potensial listrik di tiap ± 20 km segmen sepanjang garis pantai.
Model hidrodinamika 3D pada penelitian ini menggunakan mesh berbentuk structured grid dari data garis pantai dan batimetri, data pasang surut, serta informasi curah hujan untuk menentukan pemilihan bulan pembuatan model. Data pasang surut dari stasiun pasut BIG.
Berdasarkan hasil pengolahan dan analisis data dari 43 titik pengamatan, pantai selatan Pulau Jawa tidak memiliki potensi energi gelombang laut dikarenakan ketinggian gelombang yang tidak memenuhi nilai minimum yang dibutuhkan. Namun, potensi energi pasang surut menghasilkan energi yang lebih besar dan lebih merata di sepanjang pesisir dibandingkan dengan potensi energi arus laut. Peninjauan akses jalan di sekitar wilayah pesisir menghasilkan 19 titik potensi energi laut di selatan Pulau Jawa.
Estimasi daya listrik terbesar bulan Februari mencapai 1040873,4 kW pada titik 113,588391° BT 8,465352° LS, sedangkan pada bulan Oktober mencapai 520482,375 kW pada titik 113,169822° BT 8,296754° LS. Keduanya berasal dari energi pasang surut. Nilai rata-rata estimasi energi pasang surut yang dihasilkan pada bulan Februari dan Oktober masing-masing sebesar 560468,327 kW dan 373867,1891 kW.
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Ocean potential renewable energy sources can be utilized from currents, tides, thermal energy conversion, and wave. This study analyzed current velocity, wave height, and tidal range that can be converted to electrical potential energy in every ± 20 km segment along the coastline.
Three-dimensional hydrodinamics model in this study used structured grid mesh from coastline, bathymetry data, tidal data, wind data, and rainfall information to define the model month selection. Tidal data from Geospatial Information Agency were used to validate the model.
Due to wave height, the ocean potential energy from the wave does not meet the minimum value requirement based on the model processing and data analysis of 43 observation points. However, the potential of tidal energy generates greater and more equitable energy along the coast compared to the potential of ocean currents. There are 19 potential points for ocean renewable energy on southern coastal of Java reviewed from the road access around the coast.
Biggest estimated ocean power in February reached 1040873.400 kW located at 113.588391° E 8.465352° S, while in October reached 496365.975 kW at 113.169822° E 8.296754° S. Both power came from the tidal energy. The average estimated power from tidal in February and October were 560468.327 kW and 373867.189 kW, respectively.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Potensi Energi Laut, Model Hidrodinamika 3D, Kecepatan Arus, Rentang Pasut, Ketinggian Gelombang, Estimasi Daya |
| Subjects: | G Geography. Anthropology. Recreation > GC Oceanography T Technology > TC Hydraulic engineering. Ocean engineering > TC424 Water levels T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1001 Production of electric energy or power |
| Divisions: | Faculty of Civil, Environmental, and Geo Engineering > Geomatics Engineering > 29202-(S1) Undergraduate Theses |
| Depositing User: | Hanna Anie Sharlene Rayitno Soebari |
| Date Deposited: | 29 Dec 2020 23:27 |
| Last Modified: | 23 Apr 2021 05:04 |
| URI: | http://repository.its.ac.id/id/eprint/56493 |
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