EEXI services enhanced with CFD simulations
Conference/JournalMARIN Report 138
Date20 Dec 2023
As an independent hydrodynamic research institute, MARIN provides advice and clarity on energy saving solutions and energy efficiency.
Since 1 January 2023, the International Maritime Organization (IMO) demands that all ships have their EEXI calculated. Simply put, the EEXI regulates carbon emissions for ships, whilst continuing to meet speed and cargo requirements (more details). To improve the EEXI, existing ships can often benefit from improvements to their energy efficiency.
The first question that typically arises concerns the potential of retrofit solutions: What can be done on my vessel and what power/fuel savings can I expect? For this, MARIN proposes a cost-effective retrofit scan conducted in two to three days in which possible retrofit solutions are highlighted.
Since 1 January 2023, the International Maritime Organization (IMO) demands that all ships have their EEXI calculated. Simply put, the EEXI regulates carbon emissions for ships, whilst continuing to meet speed and cargo requirements (more details). To improve the EEXI, existing ships can often benefit from improvements to their energy efficiency.
The first question that typically arises concerns the potential of retrofit solutions: What can be done on my vessel and what power/fuel savings can I expect? For this, MARIN proposes a cost-effective retrofit scan conducted in two to three days in which possible retrofit solutions are highlighted.
Contact
Maxime Garenaux
Project Manager
Joy Klinkenberg
Senior Project Manager
Retrofit solutions
During a retrofit scan, the existing propeller of the vessel is analysed and benchmarked against the latest Wageningen F-series propellers. Often the efficiency of the propeller can be improved with a modern propeller design. Also, the engine power limitations introduced on the vessel often means that 1 to 2% efficiency gains can be achieved.
CFD visualisation of the vessel post-retrofit in ballast loading condition
Tags
cfdcfd/simulation/desk studiesemission