Analisis Stabilitas dan Trim Kapal Pengangkut CO2 Cair (LCO2 Carrier) Selama Proses Loading dan Unloading Muatan

Biruni, Husein Amin (2026) Analisis Stabilitas dan Trim Kapal Pengangkut CO2 Cair (LCO2 Carrier) Selama Proses Loading dan Unloading Muatan. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Meningkatnya kebutuhan transportasi CO2 cair sebagai bagian dari rantai teknologi Carbon Capture and Storage (CCS) yang menuntut tersedianya sistem operasional yang aman dan efisien pada kapal LCO2 Carrier, khususnya selama proses loading dan unloading muatan. Perubahan distribusi berat CO2 cair selama operasi tersebut berpotensi memengaruhi stabilitas, trim, dan kekuatan memanjang kapal secara signifikan apabila tidak dikendalikan dengan baik. Penelitian ini bertujuan merancang program loading computer yang mampu menentukan konfigurasi water ballast secara otomatis serta menghitung kondisi equilibrium, stabilitas, dan kekuatan memanjang kapal LCO2 Carrier pada setiap tahap operasi loading dan unloading muatan. Objek penelitian adalah kapal LNG Carrier yang di re-design menjadi LCO2 Carrier dengan tangki muatan type C cylinder. Program dijalankan pada skenario sequence loading sembilan tahap (0%–85%) dan unloading tujuh tahap (85%–0%), sehingga menghasilkan total 16 kondisi pemuatan (loadcase). Hasil analisis menunjukkan nilai GM menurun dari 2,761 m pada Loading CO2 Step 0 menjadi 0,528 m pada Loading CO2 Step 8 (85%), kemudian meningkat menjadi 2,827 m pada Unloading CO2 Step 7 (0%). Program berhasil mempertahankan trim ≤ 0,500 m dan heel ≤ 0,100° pada seluruh 16 kondisi pemuatan. Seluruh kondisi juga memenuhi keenam kriteria wajib IMO Intact Stability Code 2008 Part A serta batas permissible Still Water Bending Moment (SWBM) dan Still Water Shear Force (SWSF) berdasarkan rules class CCS. Program dilengkapi user interface (UI) dashboard yang menampilkan hasil perhitungan secara visual, sehingga dapat digunakan sebagai alat bantu operasional dalam menentukan sequence loading dan unloading muatan CO2 cair yang aman
dan efisien.
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The increasing demand for liquid CO2 transportation as part of the Carbon Capture and Storage (CCS) technology chain requires a safe and efficient operational system on board LCO2 Carrier ships, particularly during cargo loading and unloading operations. Changes in the weight distribution of liquid CO2 during these operations have the potential to significantly affect the ship's stability, trim, and longitudinal strength if not properly controlled. This study aims to design a loading computer program capable of automatically determining the water ballast configuration and calculating the equilibrium condition, stability, and longitudinal strength of an LCO2 Carrier at every stage of the loading and unloading operation. The object of the study is an LNG Carrier that has been re-designed into an LCO2 Carrier with Type C cylindrical cargo tanks. The program was run on a loading sequence scenario consisting of nine stages (0%-85%) and an unloading sequence of seven stages (85%–0%), resulting in a total of 16 loading conditions (loadcase). The analysis results show that the GM value decreased from 2.761 m at Loading CO2 Step 0 to 0.528 m at Loading CO2 Step 8 (85%), before increasing to 2.827 m at Unloading CO2 Step 7 (0%). The program successfully maintained trim ≤ 0.500 m and heel ≤ 0.100° across all 16 loading conditions. All conditions also satisfied the six mandatory criteria of the IMO Intact Stability Code 2008 Part A, as well as the permissible limits of Still Water Bending Moment (SWBM) and Still Water Shear Force (SWSF) based on CCS classification rules. The program is equipped with a user interface (UI) dashboard that visually displays the calculation results, allowing it to serve as an operational aid for determining safe and efficient loading and unloading sequences for liquid CO2 cargo.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	LCO2 Carrier, loading computer, stabilitas, trim, kekuatan memanjang
Subjects:	V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM156 Naval architecture
Divisions:	Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36201-(S1) Undergraduate Thesis
Depositing User:	Husein Amin Biruni
Date Deposited:	04 Aug 2026 03:34
Last Modified:	04 Aug 2026 03:34
URI:	http://repository.its.ac.id/id/eprint/142929

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