Mitsubishi Gets Approval for LNG Fuel Supply System

Japan’s Mitsubishi Shipbuilding has been granted an approval in principle (AIP) from Bureau Veritas for an LNG fuel gas supply system (FGSS) for marine four-stroke dual fuel engines, it said on October 19.

The FGSS comprises an LNG fuel tank, gas supply unit, control systems and other relevant equipment.  The FGSS to which the AIP was granted this time was developed mainly to be installed on coastal ferries and small to mid-sized cargo ships.

Mitsubishi Shipbuilding delivered its FGSS in 2019 to be installed on Japan’s first LNG-fuelled car carrier, currently being built at Shin Kurushima Toyohashi Shipbuilding, and has one more order for the ship currently under construction, the company said. 

The small size vacuum-insulated type tanks to be applied for the system have a double shell structure that, according to Mitsubishi, ensures high heat insulation and also allows the external cylinder of the tank to be at normal temperature, which consequently simplifies the support structure of the tank and reduces the workload for the installation work.