Trim

The Marorka Trim Module reduces the vessel's energy consumption by setting a trim that minimizes hull resistance. It increases the operator's understanding of the relationship between trim and propulsion energy consumption.

The Trim Module includes all the processes used for improving the trim of the ship. It is usually connected to the loading computer, the monitoring system, and the tank sounding system.

Trim Data Acquisition and Logging is connected to the tank sounding system, the loading computers, and to the pressure transducers that are mounted at the rear and front of the ship (transducers for measuring the trim).

Loaded or unloaded, trim has a significant influence on the resistance of the ship as it passes through the water. Optimizing trim can deliver significant fuel savings, as for any given draft there is a trim condition that gives minimum resistance. In some ships it is possible to assess optimum trim conditions for fuel efficiency continuously throughout the voyage. Design or safety factors may preclude full use of trim optimization.

An example of the Trim Module

The Decision Support of the Trim Module uses trim, draft and ballast tank measurements, in addition to hull resistance and main engine models, to find the optimal trim of the vessel and give recommendations regarding the trim. Optimal values and recommendations regarding parameter adjustments are shown in the Module display. Recommendations contain information about the current operation and settings, and inform the operator of what could be gained by changing the parameters to other given values.