Design Inert Gas System Dengan Nitrogen Generator

Muhammad, Dimitri Muhammad (2026) Design Inert Gas System Dengan Nitrogen Generator. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Risiko kebakaran dan ledakan pada kapal tanker sangat mungkin terjadi, terutama pada cargo tank. Hal ini dapat terjadi karena terdapat tiga faktor yang menyebabkan kebakaran, yaitu oksigen, bahan bakar, dan api. Oleh karena itu, pada kapal tanker terdapat suatu sistem untuk mencegah terjadinya kebakaran dan ledakan yang disebut Inert Gas System. Cara kerja sistem ini adalah dengan menurunkan kadar oksigen hingga di bawah 11% dari total volume pada ruang cargo dengan menambahkan gas nitrogen ataupun karbon dioksida. Pada kapal oil tanker, sumber inert gas system umumnya dihasilkan dari gas buang boiler ataupun main engine (Flue Gas). Namun, gas hasil pembakaran dari boiler maupun main engine memiliki kandungan gas residu NOX dan SOX yang cukup tinggi sehingga dapat menurunkan kualitas muatan yang dibawa, menyebabkan korosi pada dinding tangki, serta tidak ramah lingkungan. Seiring dengan perkembangan teknologi, penggunaan nitrogen generator sebagai sumber gas inert menjadi alternatif yang lebih praktis dan efisien dibandingkan sistem inert gas berbasis gas buang boiler. Gas yang dihasilkan dari nitrogen generator jauh lebih bersih dan memiliki kandungan oksigen yang lebih rendah dibandingkan flue gas. Namun, efektivitas proses inerting sangat dipengaruhi oleh kapasitas nitrogen generator, laju aliran gas inert, volume tangki, serta kondisi awal konsentrasi oksigen. Oleh karena itu, diperlukan pendekatan pemodelan matematis dan simulasi numerik untuk menganalisis dinamika penurunan konsentrasi oksigen di dalam tangki cargo. Penelitian ini bertujuan untuk mengevaluasi kandungan oksigen yang dihasilkan dari inert gas system menggunakan nitrogen generator pada tangki cargo serta membandingkannya dengan sistem yang menggunakan flue gas. Pada penelitian ini digunakan pendekatan matematis dengan software MATLAB Simulink untuk menganalisis penurunan konsentrasi oksigen di dalam tangki secara matematis.
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The risk of fire and explosion on a tanker ship is very likely, especially in cargo tanks. This can occur because all three factors for a fire are present: oxygen, fuel, and flame. Therefore, tanker ships are equipped with a system to prevent fires and explosions called the Inert Gas System. This system works by reducing the oxygen level to below 11% of the total volume in the cargo space by adding nitrogen or carbon dioxide gas. On oil tankers, the source of the inert gas system is generally generated from the exhaust gas of the boiler or main engine (Flue Gas). However, the gas produced from the combustion residues of the boiler or main engine contains relatively high levels of NOX and SOX, which can degrade the quality of the cargo carried, cause corrosion on the tank walls, and have negative environmental impacts. With the advancement of technology, the use of a nitrogen generator as a source of inert gas has become a more practical and efficient alternative to boiler flue gas-based inert gas systems. The gas produced by a nitrogen generator is much cleaner and has a lower oxygen content compared with flue gas. However, the effectiveness of the inerting process is greatly influenced by the capacity of the nitrogen generator, the inert gas flow rate, the tank volume, and the initial oxygen concentration. Therefore, a mathematical modeling approach and numerical simulation are required to analyze the dynamics of oxygen concentration reduction inside the cargo tank. This study aims to evaluate the oxygen content produced by an inert gas system using a nitrogen generator in cargo tanks and compare it with that produced using flue gas. In this study, a mathematical approach using MATLAB Simulink software was employed to analyze the decrease in oxygen concentration inside the tank mathematically.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Inert gas System, Kandungan Oksigen, Matlab Simulink, Nitrogen Generator Inert gas System, Matlab Simulink, Nitrogen Generator, Oxygen Content
Subjects:	T Technology > TP Chemical technology > TP155.7 Chemical processes. T Technology > TP Chemical technology > TP159.M4 Membranes (Technology) T Technology > TP Chemical technology > TP248.25.M46 Membrane separation T Technology > TP Chemical technology > TP692.5 Oil and gasoline handling and storage V Naval Science > VK > VK1258 Ships--Fires and fire prevention V Naval Science > VK > VK235 Cargo handling. V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM293 Shipping--Indonesia--Safety measures
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Dimitri Muhammad
Date Deposited:	04 Aug 2026 07:10
Last Modified:	04 Aug 2026 07:10
URI:	http://repository.its.ac.id/id/eprint/143584

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