Penilaian Risiko Tumpahan Minyak Pada Proses Bunkering Ship To Ship Di Pelabuhan Tanjung Perak Surabaya

Enggarputra, Irwan Maulana (2025) Penilaian Risiko Tumpahan Minyak Pada Proses Bunkering Ship To Ship Di Pelabuhan Tanjung Perak Surabaya. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kegiatan bunkering kapal ke kapal (ship-to-ship/STS) di Pelabuhan Tanjung Perak memiliki potensi risiko tumpahan minyak yang tinggi akibat kegagalan teknis atau kesalahan operasional. Penelitian ini bertujuan untuk menilai risiko tersebut secara menyeluruh dengan mengintegrasikan Hazid dengan mrtode HAZOP, Fault Tree Analysis (FTA), Event Tree Analysis (ETA), Risk Matrix, dan simulasi GNOME. Dari 406 aktivitas bunkering aktual pada Maret 2025, flexible hose teridentifikasi sebagai komponen paling kritis, dengan probabilitas kegagalan sebesar 0,004466 kejadian/bulan. FTA menunjukkan bahwa kombinasi kegagalan sistem dapat menghasilkan top event berupa tumpahan minyak besar dengan probabilitas 0,02063/bulan. ETA kemudian memetakan jalur konsekuensi yang menunjukkan bahwa tumpahan besar tetap berisiko jika tiga lapisan proteksi gagal. Simulasi GNOME menunjukkan bahwa dalam skenario terburuk, lebih dari 80% tumpahan bisa mencapai pantai dalam 24 jam tanpa mitigasi. Risk Matrix menempatkan sebagian besar skenario pada kategori risiko sedang hingga tinggi, yang dapat dikendalikan melalui sistem shutdown otomatis, SOP revisi, dan pelatihan kru.
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Ship-to-ship (STS) bunkering operations at Tanjung Perak Port carry significant oil spill risks due to equipment failures and human error. This study aims to comprehensively assess those risks using HAZID, Fault Tree Analysis (FTA), Event Tree Analysis (ETA), a 5×5 Risk Matrix, and GNOME simulation. Based on 406 recorded STS bunkering operations in March 2025, the flexible hose was identified as the most critical component, with a failure probability of 0.004466 incidents per month. FTA results show that system-level failures can lead to a major spill event with a combined probability of 0.02063 per month. ETA mapped the consequence paths, revealing that large spills could still occur if all three protective layers fail.
GNOME simulation of a worst-case scenario (full hose rupture, 10-minute delay) demonstrated that over 80% of the spilled oil could reach the shoreline within 24 hours without intervention. Most risk scenarios were classified as medium to high but could be reduced to tolerable levels through automatic shutdown systems, updated SOPs, and routine crew training. This study highlights the need for improved technical safeguards and emergency response planning to minimize the environmental impact of STS bunkering.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	bunkering, oil spill, ship to ship, FTA, ETA, GNOME, Tanjung Perak Port, bunkering, tumpahan minyak, ship to ship, FTA, ETA, GNOME, Pelabuhan Tanjung Perak
Subjects:	V Naval Science > VC Naval Maintenance > VC 270-279 Equipment of vessels, supplier,allowances,etc V Naval Science > VK > VK200 Merchant marine--Safety measures
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Irwan Maulana Enggarputra
Date Deposited:	05 Aug 2025 12:08
Last Modified:	05 Aug 2025 12:08
URI:	http://repository.its.ac.id/id/eprint/127572

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