船用LNG双燃料中速机特点及低碳运维管理  

Characteristics and Low-carbon Operation and Maintenance Management of Marine LNG Dual-fuel Medium-speed Engines

作　　者：贺献忠[1] 郭浩 楼海军[1] 杨智远[1] HE Xianzhong;GUO Hao;LOU Haijun;YANG Zhiyuan(Merchant Marine College,Shanghai Maritime University,Shanghai 201306,China)

机构地区：[1]上海海事大学商船学院,上海201306

出　　处：《能源与节能》2023年第4期1-5,29,共6页Energy and Energy Conservation

基　　金：山东省重点研发项目(2019JZZY020713)。

摘　　要：液化天然气(Liquefied Ntural Gsa a,LNG)是一种低碳洁净燃料,是实现航运业碳减排的过渡性关键燃料。甲烷是一种强温室效应气体,甲烷泄漏是LNG双燃料发动机面临的一个难题。通过优化双燃料机操作管理与科学维护来减少温室气体的排放,探索零排放发动机创新之路。结合多年双燃料发动机管理经验,可以进一步发掘商用船用双燃料发动机全生命周期使用价值,降低发动机日常运营过程中的碳排放,探索在当前双碳能源背景下的新型低碳运维管理方法。详细分析了瓦锡兰6L20DF型双燃料柴油机的特点及日常操作管理中的注意事项,从轮机管理角度给出双燃料机长期保持在燃气模式下高效运转及减少甲烷泄漏量的维护措施,通过提高船用双燃料发动机低碳运维管理水平确保船舶安全。Liquefied natural gas(LNG)is a kind of clean low-carbon fuel,which is the transitional key fuel to achieve carbon emission reduction in the shipping industry.Methane is a strong greenhouse gas,and methane slip is a difficult problem faced by LNG dual-fuel engine.Through reducing greenhouse gas emissions by optimizing dual-fuel engine operation management and scientific maintenance,this paper explored the new road of net-zero emission engine.Based on years of experience in dual-fuel engine management,it can further explore the full life cycle use value of commercial marine dual-fuel engines,reduce the carbon emissions in the daily operation of engines,and explore new low-carbon operation and maintenance management methods under the current dual carbon energy background.This paper analyzed the characteristics and the precautions in daily operation management of Wartsila 6L20DF dual-fuel engine in detail,put forward the maintenance measures to keep the dual-fuel engine operating efficiently in gas-mode for a long time and to reduce methane slip from the point of view of marine engine management,aiming at strengthening the low-carbon operation and maintenance management level of the marine dual-fuel engines to ensure the safety of ships.

关 键 词：液化天然气 双燃料 船舶发动机 低碳管理 

分 类 号：U692.4[交通运输工程—港口、海岸及近海工程]