SOLUSI ANALITIK RESPON GERAKAN SURGE OCEAN THERMAL ENERGY CONVERSION BERBENTUK TENSIONED LEG PLATFORM (OTEC-TLP

نویسندگان

چکیده

Peningkatan kebutuhan energi dunia relatif mengalami peningkatan yang cukup signifikan dari tahun ke tahun. Kebutuhan akan Energi Baru Terbarukan (EBT) juga meningkat seiring dengan menurunnya cadangan fosil. Ocean Thermal Energy Conversion (OTEC) menajdi salah satu alternatif sumber EBT pengembangan teknologinya berkembang dalam beberapa dekade terakhir. Umumnya OTEC menggunakan barge sebagai struktur apung penyangganya, namun bertambahnya kedalaman perairan menjadi tidak lagi ekonomis. Tipe Tensioned Leg Platform (TLP) solusi pada daerah (>1000m). Struktur OTEC-TLP terdiri ponton dan kolom ditambatkan secara taut memanfaatkan daya apung. Daya ini dipengaruhi oleh perbedaan sarat air saat kondisi free floating tertambat (DT). Perubahan DT mempengaruhi parameter hidrodinamika massa tambah, kekakuan, periode alami, gaya respon struktur. Studi dilakukan untuk mengidentifikasi pengaruh terhadap sensitivitas pendekatan analitik. Persamaan Morison digunakan studi analitik menyelesaikan gerakan surge. Berdasakan dilakukan, semakin besar DT, menyebabkan kenaikan Periode alami rendah memiliki nilai lebih dibandingkan besar, keduanya jika gelombang dominan (2 – 30s). Kondisi menjadikan stationkeeping baik karena berada area dominan.Increasing demand of energy worlwide is increasing significantly year on year. The need for New and Renewable (NRE) also increases along with the decline in fossil reserves. a viable alternative sources NRE which has been development process last few decades. In general, uses as its floater, however accordance water depth, becomes no longer economical. solution deep areas structure consists pontoons columns are tethered by means buoyancy. buoyancy floater formed difference drafts (DT) between condition. Changes will induce hydrodynamic parameters consisting added mass, stiffness, natural period, force structural response. This study was conducted to identify effect sensitivity an analytical approach. Morison's equation used this solve surge motion Based study, greater higher response motion. period at low larger than DT. However both them have relatively periods when compared wave 30s), condition creates having good responses.

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ژورنال

عنوان ژورنال: Marlin

سال: 2022

ISSN: ['2715-9639']

DOI: https://doi.org/10.15578/marlin.v3.i2.2022.103-112