LNG船蒸发气再液化经济性分析

首先解释了液化天然气运输船蒸发气再液化的必要性,分析了蒸发气低温制冷原理和再液化装置工作原理,然后对传统蒸汽动力装置船舶和带再液化装置的低速柴油机动力装置船舶分别就船舶设备投资成本、燃料费用、LNG消耗费用、维修保养费用等进行比较分析,从而得出燃料油和天然气在不同价格时固定航线每年节约费用及不同航线每年节约费用比较,最后就再液化装置对运输能力的影响进行分析,证明LNG船采用蒸发气再液化有非常好的经济性.

Economic analysis of vapor reliquefaction in LNG carrier

First,the paper introduces the importance of vapor reliquefaction in LNG carrier cargo,analyses the principle of vapor cryogenic cooling and reliquefaction plant,and compares fuel fee,LNG loss fee,and maintenance fee,investment of plant for the traditional steam power vessel and the diesel power vessel with reliquefaction plant.So it concludes that the save expenses a year about the constant navigation course between fuel oil and natural gas.At last,the influences of reliquefaction to the transportation abi...