Teknologi Konversi Energi Gelombang Laut Tipe Point Absorber Device Pada Fixed Pile Platform

Suprapto, Barizallen Abdullah (2024) Teknologi Konversi Energi Gelombang Laut Tipe Point Absorber Device Pada Fixed Pile Platform. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Energi adalah faktor penting dalam kehidupan manusia, namun penggunaan energi fosil berpotensi merusak lingkungan melalui efek rumah kaca. Oleh karena itu, pemanfaatan energi baru terbarukan (EBT) sangat diperlukan. Di Indonesia, terdapat banyak anjungan terpancang yang tidak digunakan karena melebihi masa aktif dan sulit untuk dilakukan dekomisioning. Sebagai alternatif, anjungan ini dapat dimanfaatkan untuk budidaya terumbu karang, turbin angin lepas pantai, dan Wave Energy Converter (WEC) pada fixed pile platform. Penelitian ini menggunakan ANSYS untuk memodelkan gerak derajat kebebasan dan menentukan kapasitas daya dari WEC. Tiga bentuk variasi diuji, yaitu wider-Trapezoid, Wider Cylinder, dan Trapezoid dengan skala 1:50. Hasil penelitian menunjukkan bahwa bentuk Trapezoid dengan diameter 0,25m memiliki performa terbaik, menghasilkan nilai puncak RAO 3,04m/m, Added Mass 6,68kg-4kg, Force 718,89N/m, dan Radiation Damping 9,23N/(m/s). Nilai daya dan efisiensi yang dihasilkan adalah 0,39 watt dan 0,09%. Penelitian ini merekomendasikan penelitian kedepannya untuk memvariasikan diameter pada tiap jenis bentuk guna memahami pengaruh diameter terhadap arah gerak heaving dan juga pada kondisi gelombang irregular floater point absorber bekerja
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Energy is an important factor in human life, but the use of fossil energy has the potential to damage the environment through the greenhouse effect. Therefore, the use of new renewable energy (EBT) is very necessary. In Indonesia, there are many fixed platforms that are not used because they have exceeded their active period and are difficult to decommission. As an alternative, this platform can be used for coral reef cultivation, offshore wind turbines, and Wave Energy Converters (WEC) on fixed pile platforms. This research uses ANSYS to model the motion degrees of freedom and determine the power capacity of the WEC. Three variations were tested, namely Wider-Trapezoid, Wider Cylinder, and Trapezoid with a scale of 1:50. The research results show that the Trapezoid shape with a diameter of 0.25m has the best performance, producing peak RAO values of 3.04m/m, Added Mass 6.68kg-4kg, Force 718.89N/m, and Radiation Damping 9.23N/(m/ s). The resulting power and efficiency values are 0.44 watts and 0.09%. This research recommends future research to vary the diameter of each type of shape in order to understand the effect of diameter on the direction of heaving motion and also on the irregular wave conditions the floater point absorber works in.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Konversi Gelombang Laut, Perangkat Penyerap Titik Tunggal, Gelombang Reguler, Wave Energy Converter, Single Point Absorber Device, Regular Wave
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering T Technology > TC Hydraulic engineering. Ocean engineering > TC147 Ocean wave power.
Divisions:	Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis
Depositing User:	Barizallen Abdullah Suprapto
Date Deposited:	25 Jul 2024 02:37
Last Modified:	25 Jul 2024 02:37
URI:	http://repository.its.ac.id/id/eprint/108836

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