Energy Systems Modelling

Reduction of fuel consumption and improvement of ship energy efficiency is a matter of concern in all sectors of the maritime industry. Economic constraints are increasing (with raising bunker fuel price), as well as environmental and regulatory pressure in order to reduce air emissions from ships. This is particularly the case with the recent integration of Green House Gas emission regulation in MARPOL Annex 6.

From an energy point of view, ships are complex objects with transfers between ship energy systems and conversion between different energy types. In addition, the operational profile of ships usually encompasses different modes, environmental and operating conditions, where most of the components of the energy grid have to operate at varying duty points.

When looking for energy optimization, it is therefore crucial to consider the behavior of individual energy systems and the energy exchanges between them, to be as realistic as possible.

Tecnitas offers energy efficiency services based on its internal SEECAT tool. It allows to model any part of a ship for any type of ship (new or existing) with realistic operational profiles. It can be used for “microscopic study”, where you want to improve the energy efficiency of a specific system, such as engine cooling or water pumping, or for “macroscopic study” where you want to improve the ship’s overall energy consumption. For both Tecnitas can build an energy model of your system, validate it with on-board measurements if available, assess the main improvements areas, define new solutions to improve efficiency and simulate them to assess their cost benefit. This method is applied on new build or existing ships, in particular as a support to preparation or evaluation of Ship Energy Efficiency Management Plans (SEEMP).