Model based analysis of the boil-off gas management and control for LNG fuelled vessels

نویسندگان

چکیده

The immense pressure to decarbonise the maritime industry has led Liquefied Natural Gas (LNG) uptake as a marine fuel and LNG fuelled ships design. As is stored in cryogenic conditions, heat ingress from ambient causes boil-off gas (BOG) production, which, if not controlled, results tank overpressure with implications on storage system safe operation. This study aims at investigating an behaviour for realistic operating conditions of ocean-going ship, targeting identify recommended control actions avoiding overpressure. A dynamic model developed by considering mass energy conservation liquid vapour subsystems, walls, equilibrium (VLE), real properties. Following validation holding test, simulation runs were performed various corresponding typical long short voyages investigated ship. demonstrate that compressor capacity 450 kg/h along its on/off setting upper lower limits absolute 5.5 4 bar leads avoidance minimum number BOG activations.

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ژورنال

عنوان ژورنال: Energy

سال: 2022

ISSN: ['1873-6785', '0360-5442']

DOI: https://doi.org/10.1016/j.energy.2022.123872