Abstract: With the increasing emphasis of the international community on low-carbon and emission reduction, LNG fuel, as the most important transitional clean energy, has received more attention. Some shipowners have begun to retrofit their fleets with clean fuel power, but there are some difficulties in the retrofitting of fuel power systems for large ships. The LNG power retrofitting of a 15 000 TEU large container ship has been examined to analyze and study several design methods for the retrofitting of the new fuel system by focusing on the LNG fuel tank, main engine, generator and boiler, gas supply system, filling system and auxiliary system. This study can provide a design method as a reference for the ship retrofitting of the new fuel power system.

Key words: new fuel for ships, low-carbon and emission reduction, LNG power, retrofit, design method

摘要： 随着国际社会对低碳减排日益重视,液化天然气（liquefied natural gas, LNG）燃料作为目前最重要的过渡清洁能源受到较多关注,已有一些船东开始对船队进行清洁燃料动力改装,但对于大型船舶新燃料动力系统的改装有一定考验与难度。该文以15 000标准箱大型集装箱船LNG动力改装为例,以LNG燃料舱、主机、发电机及锅炉、供气系统、加注系统和辅助系统等为主要研究对象,分析研究新燃料系统改装的一些设计方法,为当下新燃料动力系统的船只改装提供设计方法作为参考。

关键词: 船舶新燃料, 低碳减排, LNG动力, 改装, 设计方法