Concept for a LNG Gas Handling System for a Dual Fuel Engine

Sitinjak, Leonardo Risman Maruli (2017) Concept for a LNG Gas Handling System for a Dual Fuel Engine. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pada saat sekarang ini, banyak kapal yang sudah menggunakan LNG sebagai bahan bakar utama mesin karena berdasarkan faktanya LNG tidak memiliki kandungan sulphur dan pada saat proses pembakaran LNG menghasilkan kandungan NOx yang rendah dibandingkan dengan heavy fuel oil dan marine diesel oil. LNG tidak hanya menghasilkan gas emisi yang rendah tetapi juga memiliki keuntungan ekonomis. Pada laboratorium mesin, jurusan maritime studies di Warnemunde, Germany, terdapat sebuah mesin type MAN 6L23/30A, dimana mode operasi mesin ini akan dirubah menjadi dual fuel engine. Oleh karena itu, pada thesis ini, penggunaan mesin berbahan bakar ganda akan dibandingkan ketika menggunakan natural gas dan marine diesel oil, kemudian menentukan komponen komponen yang dibutuhkan untuk sistem suplai bahan bakar gas. Dengan melakukan proses perhitungan, mesin MAN 6L23/30 A membutuhkan kapasitas natutal gas sebesar 12.908 m3 untuk kebutuhan 5 hari pada beban penuh. Sebuah konsep untuk sistem suplai bahan bakar gas akan dirancang dari storage tank sampai engine manifold. Germanischer Lloyd dan Project Guide dual fuel engine akan digunakan sebagai referensi untuk menghasilkan desain yang optimal dan memenuhi standard. ====================================================================== Nowadays, ships are using LNG as main engine fuel because based on the facts that LNG has no sulphur content, and its combustion process, LNG produces low NOx content compared to heavy fuel oil and marine diesel oil. LNG is not only produces low gas emission, but may have economic advantages. In the engine laboratory of maritime studies department in Warnemunde, Germany, there is a diesel engine type MAN 6L23/30 A, where the mode operation of these engine would be changed to dual fuel engine mode operation. Therefore, in this thesis, the use dual fuel engine will be compared where it will utilize natural gas and marine diesel oil and select the required components for fuel gas supply system. By conducting the process calculation, engine MAN 6L23/30 A requires the capacity natural gas of 12.908 m3 for 5 days at full load. A concept for LNG supply system would be arranged from storage tank until engine manifold. Germanischer Lloyd and Project Guide of dual fuel engine will be used as a guidelines to develop an optimal design and arrangement which comply with the regulation.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Liquefied Natural Gas (LNG), Dual Fuel Engine, Fuel Gas Consumption Analysis, Concept of LNG Supply system.
Subjects: V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM731 Marine Engines
Divisions: Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User: Leonardo Risman Maruli Sitinjak
Date Deposited: 02 Oct 2017 07:36
Last Modified: 08 Mar 2019 04:19
URI: https://repository.its.ac.id/id/eprint/45784

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