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来源：Offshore Energy 2023-07-14
翻译：国际海事信息网 顾晋瑄 张运鸿

        日本航运巨头日本邮船株式会社（NYK Line）在其同国川崎重工业株式会社（Kawasaki Heavy Industries Ltd.，简称KHI）下单订购第六艘液化石油气（LPG）双燃料超大型液化石油气/液化氨气运输船（VLGC）。

        该船是日本邮船株式会社（NYK）液化石油气（LPG）驱动船队中的第8艘船，也是能够运载氨气以灵活应对各种贸易模式新型船舶中的第6艘船。

        此外，除了液化石油气（LPG）双燃料发动机外，该船还将配备一台轴式发电机，利用连接主机和螺旋桨的轴旋转以在航行中发电。由于柴油发电机可以在正常海上运输过程中停止运作，所以除了使用少量引燃燃料作为点火源外，船舶完全能够使用液化石油气（LPG）燃料正常航行。

        与日本邮船株式会社（NYK）那些使用重油发动机的传统超大型液化石油气运输船（VLGC）相比，新型船舶使用液化石油气（LPG）作为燃料时，其废气排放中的硫氧化物（SOx）含量至少会减少95%，而二氧化碳含量也会减少20%。

        日本邮船株式会社（NYK）表示，该船不仅符合2020年1月起严格执行的“SOx Global Cap法规*”，同时也符合2022年4月起实施更严格的“能效设计指数（Energy Efficiency Design Index，简称EEDI）第三阶段规定”，这是由国际海事组织（IMO）针对二氧化碳排放标准而通过的相关条例。

        此外，日本船级社（Nippon Kaiji Kyokai，ClassNK）将该船定级为超大型液化石油气运输船（VLGC），船舶的预设计符合日本船级社（ClassNK）发布的指导方针，因此该船将来也可以使用氨燃料。

        这艘长230米的超大型液化石油气运输新船将在川崎重工业株式会社（KHI）的Sakaide Works船厂建造，并且预计于2026年完成交付。

        值得注意的是，日本邮船株式会社（NYK）在今年1月从川崎重工业株式会社（KHI）订造了第五艘液化石油气（LPG）双燃料的超大型液化石油气/液化氨气运输船。 

        日本邮船株式会社（NYK）于2021年底订购了前两艘同类船舶，而第三艘和第四艘同类船舶的订造时间分别是2022年春季和夏季。

        （本文版权归国际海事信息网所有，图片版权归原作者，转载请注明出处。）

NYK books new LPG dual-fuel, ammonia-ready VLGC at KHI

Japanese shipping major NYK Line has placed an order for its sixth liquefied petroleum gas (LPG) dual-fuel very large LPG/liquefied ammonia gas carrier (VLGC) from compatriot Kawasaki Heavy Industries Ltd. (KHI). 

This vessel is the eighth in NYK’s fleet of LPG-fueled LPG carriers and the sixth in a new type of vessel capable of carrying ammonia and thus flexibly responding to various trade patterns.

Furthermore, in addition to the LPG dual-fuel engine, the ship will have a shaft generator that can generate electricity during the voyage by using the rotation of the shaft that connects the main engine to the propeller. Since the diesel generator can be stopped during regular seagoing transit, realizing full navigation with LPG fuel will be possible except for the use of a small amount of pilot fuel as an ignition source.

When LPG is used as fuel, exhaust gas onboard the vessel is expected to contain at least 95% less sulfur oxide (SOx) and 20% less CO2 than NYK’s conventional VLGCs using heavy-oil fired engines.

NYK noted that the vessel will comply not only with the SOx Global Cap regulations* that were tightened from January 2020 but also with the IMO’s Energy Efficiency Design Index (EEDI) Phase 3 regulations, which implemented stricter CO2 emission standards from April 2022.

Moreover, the vessel is expected to be given notations by Nippon Kaiji Kyokai (ClassNK) as a VLGC that has a preparatory design in accordance with the guidelines issued by ClassNK so that this vessel may use ammonia fuel in the future.

The 230-meter long VLGC will be built at the KHI Sakaide Works shipyard and is set for delivery in 2026.

To remind, in January this year, NYK booked its fifth LPG dual-fuel very large LPG/liquefied ammonia gas carrier from KHI. 

NYK ordered the first two such vessels at the end of 2021. The third and fourth units were ordered in the spring and summer of 2022, respectively.

来源：simic