大型LNG船能效设计指数提升研究

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针对全球航运业的碳排放问题,以17万立方米级LNG船为研究对象,研究了不同推进方式对船舶能效设计指数(EEDI)的影响,具体指出了双燃料低速机直推型LNG船EEDI的计算方法。结果表明:相比二冲程柴油机及双燃料电力推进LNG船,双燃料低速机直推传动效率更高,EEDI更优;并且研究了不同节能装置对该型船EEDI的贡献效果,发现在不改变主机最大输出功率(SMCR)的前提下,充分利用螺旋桨转速裕度配置轴带发电机可有效提升EEDI。
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