The number of cruise ships sailing is growing constantly worldwide, driven by a continuously increasing number of passengers. Higher attention to this ship segment runs together with more complex energy systems installed on board due to the needs of improving energy efficiency and reducing operational costs. For these reasons, ship Owners and Shipyards are involved in the design of power plants and energy management systems that ensure lower fuel consumption and compliance with increasingly stringent IMO regulatory requirements on emissions.
With such a complex design and operational scenario, the necessity of having a tool capable of helping the ship owners at choosing from different plant layouts, recovery systems and emission abatement systems emerges. In fact, it is not enough to design the single plants separately, but it is necessary to consider the energy system as a whole, thinking since the beginning how the plants would interact with each other in order to optimize the available energy onboard and reduce the emissions. Overall, a holistic approach to manage energy flows in modern ships is becoming an absolute necessity. LESS (Low Energy Ship deSign tool) is a newly developed simulation platform implemented by Tempestive that allow to quickly assess ship energy performances focusing on the ship operational conditions, optimizing energy efficiency and reducing emissions through cogeneration and recovery plants since the early stages of the design process.
LESS is organized as a “simulation environment” to determine energy balances and material fluxes between the system components for given operational conditions and gives the user (the designer or a group of designers) the possibility to organize his design activity in a flexible manner. For given operational scenarios, such tool will help ship owners and shipyards to choose from different plant layouts, recovery systems and emission abatement systems, in order to guarantee lower fuel consumption and operational costs and compliance with increasingly stringent IMO regulatory requirements on emissions.