Ramadhan, Raif Adhi (2024) Studi Pengaruh Perubahan Tinggi Gelombang Laut dan Periode Terhadap Oscillating Water Column. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Potensi energi gelombang yang sangat besar di wilayah pesisir Indonesia menegaskan potensi energi gelombang di lokasi-lokasi spesifik, dengan Kuta Selatan Bali sebagai salah satu lokasi optimal untuk pengembangannya. Penelitian-penelitian sebelumnya telah melakukan pemeriksaan kuantitatif terhadap potensi energi gelombang Indonesia, Studi-studi tersebut menyoroti potensi energi gelombang sebagai sumber energi terbarukan di Indonesia, terutama mengingat meningkatnya konsumsi listrik nasional. Pemanfaatan teknologi Oscillating Water Column (OWC) untuk energi gelombang di Indonesia telah diidentifikasi, dengan potensi produksi energi yang signifikan di Nusa Tenggara Timur dan Pantai Baron, Gunung Kidul, di mana yang pertama melaporkan kepadatan daya sebesar 19.021,89 Watt/m². Penelitian ini bertujuan untuk menyelidiki dampak diameter kolom terhadap kinerja perangkat Oscillating Water Column (OWC), khususnya air velocity, dynamic pressure, dan Power. Studi ini mengamati perilaku kolom dengan tiga diameter berbeda (0,5 m, 0,75 m, dan 1 m) dan tiga periode gelombang berbeda (7 detik, 9 detik, dan 12 detik). Analisis hasil menunjukkan bahwa kolom dengan diameter 0,75 m atau rasio aspek 1,5:0,75 (tinggi gelombang terhadap diameter kolom) menghasilkan air velocity tertinggi. Temuan ini didukung oleh pengukuran Air velocity pada berbagai periode gelombang, dengan nilai 0,408 m/s pada 7 detik, 0,627 m/s pada 9 detik, dan 0,330 m/s pada 12 detik. Analisis lebih lanjut menunjukkan bahwa kolom dengan diameter 0,5 m atau rasio aspek 1:0,5 (tinggi gelombang terhadap diameter kolom) mengahasilkan dynamic pressure tertinggi, dengan nilai dynamic pressure yang mencapai 0,619 N/m² pada 7 detik, 3,978 N/m² pada 9 detik, dan 0,635 N/m² pada 12 detik. Kolom dengan diameter 0,75 m atau rasio aspek 1,5:0,75 (tinggi gelombang terhadap diameter kolom) menunjukkan power rata-rata tertinggi. Hal ini ditunjukkan oleh nilai daya sebesar 0,1709 J/s pada periode 7 detik, 1,0075 J/s pada periode 9 detik, dan 0,0611 J/s pada periode 12 detik, yang lebih tinggi dibandingkan dengan kolom lainnya
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The tremendous potential of wave energy on coastal areas of Indonesia underlines the potential of wave energy in specific places, citing South Kuta Bali as the optimum location for its growth. conducts a quantitative examination of Indonesia's wave energy potential, identifying the Aru Islands and Arafuru Sea as having the highest potential for power production. These studies highlight the potential of wave energy as a renewable energy source in Indonesia, particularly given the country's rising electricity consumption. The possibility of oscillating water column (OWC) technology for wave energy applications in Indonesia. identified considerable energy production potential in East Nusa Tenggara and Pantai Baron, Gunung Kidul, respectively with the former reporting a power density of 19,021.89 Watt/m2. This research aims to investigate the impact of column diameter on the performance of an Oscillating Water Column (OWC) device, specifically in terms of velocity and dynamic pressure, The present study investigated the behavior of columns with three different diameters (0.5 m, 0.75 m, and 1 m) subjected to wave loading with three different wave periods (7 s, 9 s, and 12 s). Result analysis revealed that columns with a diameter of 0.75 m or an aspect ratio 1,5 :0,75 (wave height to column diameter) exhibited the highest air velocity compared to other diameter variations. This finding is supported by the air velocity measurements across different wave periods, with values of 0,408 m/s at 7 second, 0,627 m/s at 9 seconds, and 0,330 m/s at 12 seconds. Result analysis revealed that columns with a diameter of 0,5 m or an aspect ratio of 1:0,5 (Wave Height to column diameter) experienced the highest dynamic pressure compared to other diameter variations. This is evidenced by the pressure values, which reached 0.619 N/m² at 7 seconds, 3.978 N/m² at 9 seconds, and 0.635 N/m² at 12 seconds, all exceeding those measured in other column configurations. Result analysis reevealed the one with a diameter of 0,75 m or an aspect ratio of 1.5:0.75 (wave height:Column Diameter) exhibited the greatest average power. This is evidenced by power values of 0,1709 J/s in period 7s, 1,0075 J/s in period 9s, and 0,0611 J/s in period 12s, which demonstrate higher average power compared to the other columns.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Oscillating Water Column, Velocity, Dynamic Pressure, Wave Height, Power Plant Oscillating Water Column, Velocity, Dynamic Pressure, Tinggi Gelombang, Generator Listrik |
| Subjects: | T Technology > TJ Mechanical engineering and machinery T Technology > TJ Mechanical engineering and machinery > TJ164 Power plants--Design and construction T Technology > TJ Mechanical engineering and machinery > TJ808 Renewable energy sources. Energy harvesting. |
| Divisions: | Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis |
| Depositing User: | Raif Adhi Ramadhan |
| Date Deposited: | 06 Aug 2024 07:17 |
| Last Modified: | 06 Aug 2024 07:17 |
| URI: | http://repository.its.ac.id/id/eprint/113954 |
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