A data analytics programme applied to the design of two new Hapag-Lloyd Cruises passenger expedition ships, currently under construction at the Vard Shipyard in Romania and Norway, has resulted in projected annual fuel savings of more than ten per cent, the company says.
DNV GL began working with Hapag-Lloyd Cruises during the initial design and conception phase for the two vessels, HANSEATIC nature and HANSEATIC inspiration, creating and exploring more than 100,000 hull variations for the vessels, applying the computing power of approximately 7,000 CPUs.
Analysis of the various hull forms, and of the impact on fuel consumption of interactions between the hull form, the initial general arrangement and stability requirements, was then applied by Hapag-Lloyd Cruises and Vard in choosing the optimal design for the new ships, which are expected to launch in April and October 2019.
After the initial assessment, the efficiency of the hull form was then optimised within the given constraint set using DNV GL’s formal optimisation approach. During this phase, another 10,000 hull designs were analysed, with the most promising candidates undergoing high fidelity computational fluid dynamic (CFD) analysis to confirm the results.
“The design concept for the two new ships was ‘inspired by nature’,” said Dr Henning Brauer, head of new builds, Hapag-Lloyd Cruises.
“The vessel interiors have been created to reflect the environments our passengers are experiencing inside the ships. But these are also sensitive environments, so reducing the environmental impact of our vessels is an integral part of the design concept. Working with DNV GL has allowed us to significantly reduce fuel consumption, which also decreases our overall emissions.”