Development prospects for domestic propulsion systems of ARC7 LNG carriers

The relevance of this work stems from the increasing importance of the Northern Sea Route as a strategic artery for commercial shipping, particularly concerning the execution of fuel and energy projects in the Arctic. Since 2022, the reduced participation of foreign companies in these projects has highlighted the necessity of developing domestic key equipment for shipbuilding. This article assesses the prospects for developing and implementing propulsion systems for liquefied natural gas tankers in the Russian Federation. The aim is to identify the essential components of propulsion systems that must be created to successfully realize the construction of Arc7 ice-class gas carriers. To determine viable options for these power plants, a review of existing propulsion systems used on similar LNG carriers is conducted, suitable main engine types for implementation are considered, and potential analogues for the propulsion and steering system are examined separately. Finally, an assessment is made of their positive and negative characteristics, such as efficiency, maneuverability, and implementation prospects. The article also preliminarily identifies enterprises within the Russian Federation that could serve as potential suppliers of key equipment for newly developed marine power plants, many of which are already engaged in Arctic energy resource extraction and export projects.