I Putu, Suryana (2015) Analisis teknis dan ekonomis floating terminal untuk crude oil di tuban. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Single buoy mooring (SBM) merupakan salah satu sistem tambat yang dapat digunakan
dalam operasional FSO untuk tetap menjaga posisi FPO akibat pengaruh beban lingkungan
(angin, arus, gelombang). Dalam penelitian ini dilakukan analisa mooring line tension pada
sistem tambat FSO Cinta Natomas di perairan Tuban untuk kondisi intact (load case: colinear
dan non colinear) dan damage (load case: colinear dan non colinear). Analisa dilakukan pada
kondisi FSO full load dan ballast, dimana nilai chain tensionnya adalah 1093.40 kN (intactfull
load-collinear and non collinear), 1106.33 kN (intact-ballast-collinear and non collinear),
1101.351 kN (damage-full load- collinear and non collinear), 1149.71 kN (damage-ballstcollinear
and non collinear). Sedangkan maximum hawser tension 845.211 kN (intact-full
load), 1019.395 kN (intact-ballast), 748.783 kN (damage-full load), 967.741 kN (damageballast).
Pada penelitian ini juga dilakukan desain baru (SBM) guna mendukung proses
loading-offloading sehingga sistem tandem FSO-Shuttle tanker tidak lagi digunakan. Analisa
mooring chain tension dilakukan pada kondisi SBM tanpa shuttle tanker. Nilai chain tension
maksimum SBM tanpa shuttle tanker sebesar 1250.39 kN (intact-colinear dan non collinear),
1162.736 kN (damage-colinear dan non collinear). Nilai chain tension maksimum SBM
dengan shuttle tanker sebesar 1072.326 kN (intact-full load-collinear dan non collinear),
1095.507 kN (intact-ballast-collinear dan non collinear), 1076.726 kN (damage-full loadcollinear
dan non collinear), 1140.917 kN (intact-ballast-collinear dan non collinear).
Sedangkan maximum hawser tension 794.949 kN (intact -full load), 910.172 kN intact-ballast),
650.908 kN (damage-full load), 773.867kN (damage-ballast). Selain mooring line analysis
pada penelitian ini juga dilakukan fatigue life assessment pada bracket di midship FSO serta
cost etimation pembangunan SBM baru. Hasil remaining fatigue life yang diperoleh untuk
bracket 1 adalah -30.2 (load case 0.4tscant), -30.12 (load case 0.57tscant), -29.99 (load case
0.73tscant), -29.46 (load case 0.9tscant). Sedangkan untuk bracket 2 adalah -13.63 (load case
0.4tscant), -15.57 (load case 0.57tscant), -17.02 (load case 0.73tscant), -17.55 (load case 0.9tscant).
Biaya pembangunan SBM baru membutuhkan cost sebesar USD 14,428,701, biaya reparasi
bracket sebesar USD 36,802, dan biaya replating sebesar USD 241,162.
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Single buoy mooring (SBM) is one of the mooring system which is use in the FSO
operation to keep the vessel position due to the effect of environmental loads (wind, current,
and wave). In this research, mooring line tension analysis of FSO Cinta Natomas mooring
system has been conducted in condition both of intact (load case: collinear and non collinear)
and damage (load case: collinear and non collinear). Analysis was conducted in FSO condition
both of full load and ballast and the maximum chain tension are 1093.40 kN (intact-full loadcollinear
and non collinear), 1106.33 kN (intact-ballast- collinear and non collinear), 1101.351
kN (damage-full load- collinear and non collinear), dan 1149.71 kN (damage-ballst- collinear
and non collinear). The maximum hawser tension 794.949 kN (intact -full load), 910.172 kN
intact-ballast), 650.908 kN (damage-full load), 773.867kN (damage-ballast). Also carry out the
analysis of new build SBM to support loading-offloading process in aim to eliminate the tandem
system between FSO and shuttle tanker. Mooring chain tension analysis has been conducted in
condition SBM both of with and without shuttle tanker. The maximum chain tensions of SBM
without shuttle tanker are 1250.39 kN (intact-collinear dan non collinear), 1162.736 kN
(damage-collinear dan non collinear. The maximum line tensions of SBM with shuttle tanker
are 1072.326 kN (intact-full load-collinear dan non collinear), 1095.507 (intact-ballastcollinear
dan non collinear), 1076.726 kN (damage-full load-collinear dan non collinear),
1140.917 kN (intact-ballast-collinear dan non collinear). The maximum hawser tension
794.949 kN (intact -full load), 910.172 kN intact-ballast), 650.908 kN (damage-full load),
773.867kN (damage-ballast). Fatigue life assessment and cost estimation of new build SBM
also has been conducted in this research. Fatigue life assessment analysis was conducted to find
the remaining fatigue life of bracket. The remaining fatigue life for bracket 1 -30.2 (load case
0.4tscant), -30.12 (load case 0.57tscant), -29.99 (load case 0.73tscant), -29.46 (load case 0.9tscant),
for bracket 2 are -13.63 (load case 0.4tscant), -15.57 (load case 0.57tscant), -17.02 (load case
0.73tscant), -17.55 (load case 0.9tscant). The estimation of new build SBM cos is USD 14,428,701,
bracket reparation cost is USD 36,802, and replating cost is USD 241,162.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSPe 627.22 Sur a |
| Uncontrolled Keywords: | Chain; fatigue life; hawser; single buoy mooring ===================================================== Chain; fatigue life; hawser; single buoy mooring |
| Subjects: | V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM297 Ships Designs and drawings |
| Divisions: | Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36201-(S1) Undergraduate Thesis |
| Depositing User: | - Taufiq Rahmanu |
| Date Deposited: | 20 Sep 2019 02:16 |
| Last Modified: | 20 Sep 2019 02:16 |
| URI: | http://repository.its.ac.id/id/eprint/70847 |
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