Pusuratama, Dimas Meidhika (2016) Studi konsep struktur penopang turbin PLTA untuk FSO ladinda. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Ketahanan energi dunia sekarang menunjukkan penurunan khususnya energi fosil.
Kedepan kebutuhan energi semakin besar disebabkan laju pertumbuhan manusia.
Sistem penyediaan energi listrik yang dapat memenuhi kriteria di atas adalah
sistem konversi energi yang memanfaatkan sumber daya energi terbarukan,
seperti: matahari, angin, air, biomas dan lain sebagainya. FSO Ladinda salah satu
fasilitas marine yang milik perusahaan EMP Malacca Strait S.A. yang digunakan
sebagai penunjang kegiatan operasional eksplorasi dan eksploitasi minyak dan
gas bumi. Terletak di Selat Lalang, Indonesia mempunyai potensi untuk
menghasilkan energi listrik dari arus laut. Akan tetapi, terdapat pertimbangan
apabila 18 unit turbin tersebut dapat ditopang dengan menggunakan struktur
terpancang berjenis supporting platform. Oleh karena itu, dibutuhkan analisa
perancangan struktur secara statis dan dinamis untuk menghasilkan perancangan
yang baik. Dari hasil penempatan turbin berdasarkan jarak aman yang telah
ditentukan didapatkan luasan dek sebesar 15300 ft2 dengan jumlah kaki 12 buah.
Setelah perhitungan serta pemodelan analisa statis dilakukan, didapatkan respon
statis dengan Unity Check terbesar kondisi operasi sebesar 0.65 pada secondary
girder dan kondisi badai sebesar 0.56 pada secondary girder pula. Pada analisa
statis akibat beban arus tambahan, terjadi tegangan maksimum pada struktur pada
member 003P-103P dengan ID member PL1 sebesar -24,22 ksi pada load
condition 6002. Sedangkan Joint Displacment terbesar terjadi pada simpul dengan
joint ID 0008 sebesar 7,474 in, pada load condition 6002 pada kondisi badai.
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World energy security is showing a decline of fossil energy in particular nowdays.
In the future energy needs of the greater due to the growth rate of a human.
Electrical energy supply system that can meets the above criteria are energy
conversion systems that utilize renewable energy resources, such as solar, wind,
water, biomass and others. FSO Ladinda one of the marine facility that is owned
by the company EMP Malacca Strait SA which is used to support operational
activities of exploration and exploitation of oil and gas. Located in the Strait of
Lalang, Indonesia has the potential to generate electricity from ocean currents.
However, there is a consideration if the turbine unit 18 can be supported by using
a fixed structure supporting various platforms. Therefore, the required structural
design analysis of static and dynamic to produce good design. From the results of
the placement of the turbine based on a predetermined safe distance obtained a
deck area of 15300 ft2 with a number of legs 12 pieces. After calculation and
modeling of static analysis is done, the response obtained with Unity Check
biggest static operating conditions of 0.65 in secondary girder and storm
conditions of 0.56 in secondary girder anyway. In the analysis of static load due
to additional current that affect on turbine, maximum force occurs in the structure
of the member 003P-103P with the member ID PL1 of -24.22 ksi on load
condition 6002. The largest displacement joint occur in the joint node ID 0008
amounted to 7.474 in, on the load condition 6002 in storm conditions.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSKe 621.402 Pus s |
| Uncontrolled Keywords: | Fixed Platfrom, Static Response, FSO Ladinda, Selat Lalang, Turbin Darrieus BPPT LHI |
| Subjects: | V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM773 Ship propulsion, Electric |
| Divisions: | Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis |
| Depositing User: | Mr. Tondo Indra Nyata |
| Date Deposited: | 29 Aug 2017 08:47 |
| Last Modified: | 27 Dec 2018 04:23 |
| URI: | http://repository.its.ac.id/id/eprint/48781 |
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