Dynamic Trimming Assistant for fuel efficiency
Trim to improve performance
The trim (the fore and aft floating angle) of the ves-sel is a major factor when calculating drag caused by the underwater parts of the hull. Vessels are de-signed to sail at a certain trim (at minimum drag), but knowing the current trim, until now, has been difficult. The optimum trim also varies from the de-signed trim with the environment; vessel speed, weather, weight alterations, water depth cause sur-prisingly large alterations in the vessel attitude.
Eniram has developed a way to measure the vessel attitude dynamically with extreme precision. It al-lows the vessel to be sailed at an optimum angle at a higher speed while saving fuel.
DTA
The Dynamic Trimming Assistant shows the current vessel trim on a self-explanatory user interface. It also creates a dynamic graphic trim curve during the voyage, which easily demonstrates changes in the trim.
The optimum trim is calculated by comparing previ-ously recorded data to the data recorded in the ex-isting conditions. Through the detailed DTA display, the system guides the crew to operate the vessel at an optimum trim.
Benefits
Substantial direct fuel savings
- Up to 5%
Improved speed utilization
Environmental improvements
- Less pollution
- Better utilization of machinery
Improved understanding of vessel performance
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