Launched in 2007, Ecorizon® is an ambitious and resolute R&D program, aiming to reduce the environmental footprint of ships built by Chantiers de l’Atlantique while ensuring their economic profitability. Ever since, this long-term program has represented an important part of the Company’s R&D efforts and has enabled it to propose innovative solutions to help its clients significantly increase their ships’ energy and environmental efficiency while anticipating and exceeding all successive regulatory requirements. They have thus actively contributed to the commercial success of Chantiers de l’Atlantique and its clients over the recent years.
This program works along 5 main axes spanning all aspects contributing to the improvement of energy efficiency and the reduction of the environmental footprint of products made by Chantiers de l’Atlantique:
In this area, Ecorizon® is based on the development of a global, systematic and structured approach to the question of reduced energy consumption on board ships.
In parallel, this program generated the development of innovative technological solutions, most of which have received a patent, on energy production, the reduction of consumption as well as the relaunch of the hybrid sail/electrical propulsion.
In the latter case, an important milestone was established in 2018 with the presentation at the Seatrade Cruise Global fair (international cruise fair) of the concept of the Silenseas® cruise ship, associated with the innovative SOLID SAIL concept developed by Chantiers de l’Atlantique. This new solution can result in a substantial reduction of consumption on a cruise ship (around 50%) and stirred a lot of interest on the part of shipowners.
Figure 1: Silenseas® sail-based cruise ship
The improvement of energy efficiency directly induces the reduction of CO2 emissions, the main factor of climate change and purpose of a regulatory evolution applicable to cruise ships from 2019-2020 onward.
Anticipation of this regulatory evolution by Chantiers de l’Atlantique’s Ecorizon® program made it possible to reach and exceed these requirements, with remarkable results on the last ships delivered, results otherwise awarded twice for environmental and energy performance.
The year 2018 was thus marked by OMI’s new ambition setting new goals to reduce the ships’ emissions of GHG (greenhouses gases). To achieve these new targets, Chantiers de l’Atlantique launched a new ambitious R&D program revolving mainly around the use of new fuels and systems of energy generation, such as fuel cells for instance. These works are preparing the new generations of ships for the upcoming decades.
On top of greenhouse gases, the OMI regulates the emission of pollutants such as Sox and NOx into the atmosphere with global requirements completed by local requirements:
As for particles, they are not yet directly covered by maritime regulation, but there is strong pressure pushing to reduce these emissions.
Chantiers de l’Atlantique, in the framework of the Ecorizon® program is acting resolutely to reduce these 3 types of pollutants. As of now, this has translated into the following actions:
– Installation of systems for the treatment of exhaust gases (scrubber to treat SOX and Selective Catalytic Reducer – SCR to treat NOX) on all new ships recently delivered and on retrofits, which represents more than 50 scrubbers and some ten SCRs at the end of 2018.
– Use of LNG (Liquefied Natural Gas) to replace heavy fuel (HFO), which helps reduce these 3 pollutants much beyond the current regulatory constraints (NOX, SOX, particles) with the first order in 2017 of 4 World Class ships for MSC.
– R&D for the specific treatment of particles for fuel-fired ships.
Emissions in water
As with emissions into the air, emissions in water are also covered by increasingly drastic regulations reinforced by local restrictions addressing the treatment of waste water produced on board, the treatment of ballast water and the anti-fouling paint systems.
Via its Ecorizon® R&D program, Chantiers de l’Atlantique had anticipated these evolutions and developed innovative solutions which are today installed on its ships, such as:
– Biocide-free anti-fouling treatment systems,
– The drastic reduction of the environmental footprint of the water cycle, from generation to treatment of fresh water, via the installation of optimized systems for the production of fresh water, the reduction of water consumption, the re-use of condensates from the ventilation networks and the treatment of ballast water.
Solutions developed by Chantiers de l’Atlantique with its Ecorizon® program, make it possible to:
– increase the proportion of recycled waste,
– transform waste into energy,
– generate less emissions into the air and less release into the sea,
– propose more compact equipment and operational improvements.
They thus aim to offer more environment-friendly and more energy efficient alternatives than current standard solutions such as incineration.
To ensure the general consistency of all these actions, Chantiers de l’Atlantique has opted for an overall life cycle approach developed in the framework of the Ecorizon® program. A tool for the assessment of the global environmental footprint specific to the maritime area has been developed and has been in use for several years to drive the design of ships.