実成分LNGと就航条件での蒸発率について

概要

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BOR of LNG cargo is controlled to maintain the cargo quantity as a commercial goods during sea going by providing the insulation around the cargo tanks. This BOR is defined under premised and ideal conditions of cargo components (pure methane base), atmosphere and sea temperature and tank pressure, which are largely different from the actual cargo and sea going conditions. Therefore, for the evaluation of BOG quantity at the design conditions, the conversion of the actual BOG data to the design conditions are required by modifying the cargo characteristics, outside temperatures and pressure. Conditions of calculation and conversion will especially be important factors when the shipyard guarantees the BOR to the ship's owner. In this paper, author stated the correction process of temperature and pressure and correction method of LNG components for LNG BOR from the actual data to a certain design condition introducing the calculation of liquid-vapor equilibrium for multi components system from the view point of physical chemistry.
社団法人日本船舶海洋工学会の論文
1986-03-01