A Novel LNG Tank Containment Design for Large LNG Carriers

new concept for Large LNG carriers is proposed. This design utilizes membrane tanks with a cross section that reduces the liquid free surface inside the tanks. This reduced free surface results in lower sloshing impact loads on the tank membrane and insulation, extending membrane technology to larger LNG carriers than have hitherto been possible, providing improved costs and fabrication schedules. Further, this concept may extend membrane tank ships to more severe environments than previously thought possible.