摘要
以某中型双燃料集装箱船为例,对液化天然气(Liquefied Natural Gas,LNG) B型舱双燃料方案、LNG薄膜舱双燃料方案和甲醇双燃料方案等3种双燃料方案的设计进行概述,并对这3种方案的燃料舱舱容、船舶续航力、空船重量、14 t重箱数指标、船舶能效设计指数(Energy Efficiency Design Index,EEDI)和碳强度指标(Carbon Intensity Indicator,CII)进行对比分析。对比结果表明:在相同布置空间下,LNG双燃料方案的燃料舱舱容小于甲醇双燃料方案的燃料舱舱容,但其空船重量更大;由于LNG相比甲醇具有更大的能量密度和更小的质量密度,LNG双燃料方案的船舶续航力比甲醇双燃料方案强,且其14 t重箱数指标更优。基于目前的技术条件,LNG双燃料方案的EEDI和CII优于甲醇双燃料方案,但随着绿甲醇技术的不断发展,甲醇双燃料方案将更具优势。
Taking a medium-sized dual fuel container ship as an example,this paper summarizes the design of three dual fuel schemes:LNG(Liquefied Natural Gas) B-type tank dual fuel scheme,LNG membrane tank dual fuel scheme,and methanol dual fuel scheme.The fuel tank capacity,endurance,empty ship weight,14 t heavy container index,EEDI(Energy Efficiency Design Index),and CII(Carbon Intensity Indicator) of these three schemes are compared and analyzed.The comparison results show that under the same layout space,the fuel tank capacity of the LNG dual fuel scheme is smaller than that of the methanol dual fuel scheme,but its lightweight is greater;Due to the higher energy density and lower mass density of LNG compared to methanol,the range of LNG dual fuel scheme is greater than that of methanol dual fuel scheme,and its 14 t heavy container intake index is better.Based on current technological conditions,the EEDI and CII of the LNG dual fuel scheme are superior to the dual fuel methanol scheme.However,with the continuous development of green methanol technology,the methanol dual fuel scheme will have more advantages.
作者
莫继华
颜绪
MO Jihua;YAN Xu(Shanghai Merchant Ship Design and Research Institute,Shanghai 201203,China)
出处
《船舶与海洋工程》
2024年第6期30-37,共8页
Naval Architecture and Ocean Engineering
