This initiative is in response to the California Air Resources Board's (CARB) expanded exhaust emission regulations for vessels calling at ports in the state.
The VCR system can adjust the air compression ratio in the engine combustion chamber to an optimal balance according to engine power and LNG fuel properties.
The study is the latest among shippers including North Sea Container Line, MOL and Bunker Holding that are exploring ammonia as an alternative marine fuel as they seek ways to cut emissions and meet decarbonisation goals.
