Mitsubishi Shipbuilding gets BV AiP for new LNG fuel system

Photo: Bureau Veritas approve.jpg
Japan’s Mitsubishi Shipbuilding has received an approval-in-principle (AiP) by Bureau Veritas (BV) for a LNG fuel gas supply system (FGSS) for marine four-stroke dual fuel engines.

A marine four-stroke dual fuel engine is mainly used in small and mid-sized ships and is able to run on both conventional heavy oil and LNG.

The FGSS comprises of an LNG fuel tank, gas supply unit, control systems and other relevant equipment.

The FGSS uses small size ‘vacuum-insulated’ type containment tanks with a double shell structure that ensures high heat insulation and also allows the external cylinder of the tank to remain at normal temperatures. This simplifies the support structure requirements for the tank and reduces installation work.

“This new system has received BV’s AiP recognising that Mitsubishi Shipbuilding has clearly demonstrated that the new system meets our class rules and standards for gas safety and regulatory compliance,” said Claude Maillot, senior vice president North Asia of BV.

“Innovations like these are helping drive the industry towards better environmental and operational performance – while reducing risk,” Maillot added.