Future ship design by Harry Robertsson, Technical Director, Stena
CIMAC Congress 8th of June 2016
Agenda
• Who am I?
• What is Stena?
• Stena’s newbuilding history
• Future ship design
• The RoPax of the future
Who am I?
• Born 1956 in Stockholm, Sweden
• Shipping family
• MSc in Naval Architecture and Marine Engineering 1982
Career details:
• Swedish Maritime Authority 1982-1984
• GVA 1984-1989
• MariTerm AB 1989-1993
• Pelmatic AB 1993-1996
• Stena Rederi AB 1996-today
Project Manager Stena Don Semi-submersible Drilling Unit
Technical Director since 1999
THIS IS STENA AB
Stena is a family owned group of companies
Stena Teknik - Organization 19 persons:
Naval Architects,
Masters,
Chief Engineers and
Secretary
Main competence areas:
Structure
Hydro
Machinery & Systems
Contracts & Purchasing
Supporting competences:
Project management
Energy efficiency
Marine regulations and standards
Arctic
We provide marine technology expertise to the Stena Sphere
Stena’s newbuilding history
Stena newbuilding history - High Speed Service vessels
Stena Newbuilding history - RoRo and RoPax ships
Stena newbuilding history - Offshore Drilling vessels
Stena newbuilding history - Tankers
Newbuilding project process
Current newbuilding projects
Stena’s newbuilding history
More than 80 vessels during the last 20 years gives abt one vessel each quarter ordered and delivered!
Future ship design - Expectations
Reduced environmental footprint
Increased safety
Increased cost efficiency
Increased safety
Autonomous ships
Today we have a Integrated Bridge Systems with • ARPA
• ECDIS
• Auto-tracking
• Auto-pilot
• AIS
• D-GPS
• Predictor
Autonomy requires integration of additional equipment and sensors for a reliable situation awareness system
New stability rules are under development
New requirements regarding fire safety are discussed
Increased cost efficiency (CAPEX and OPEX)
• Optimal and simple steel structure hull design for the intended service.
• Reduce the number of systems installed onboard
• Equipment used in port shall not be installed onboard
• Expensive equipment to be installed as late as possible
• Reduce the amount of cabelling utilizing modern technology
• Reduce piping by optimal arrangements
• Evaluation of present timetables including turn around in port for optimum operation with regards to customer demand and service speed
Reduced environmental footprint
2050 2030
CO2 emission
100%
70%
Known
technology
New technology
+
New logistics
IMOIIMAX features:
• A hull design that is developed for an operational range of speeds and drafts instead of a specific speed at a design draft
This has resulted in
• A hull with an unconventional bulbous bow and shape of skeg and stern
• A propeller with a larger diameter and a lower rpm including a propeller boss cap fin
• A derated main engine
=> 30% less installed power
Reduced environmental footprint
Reduced environmental footprint
• Film på kav test Jacob
Reduced environment footprint - Energy Efficiency Focus
• Maintaining the tradition to find optimal hull form for all new building projects
• Implement fuel saving arrangements on existing fleet
>300 projects have been implemented
>30 vessels have equipment for RTM (Real Time Monitoring) and FMS (Fuel Management System)
• Best practise is coordinated between Stena’s business units for fuel efficiency
• Development of technology is continously followed up
New form of bulbous bows
”Old” bulbous bow ”New” bulbous bow
=> abt 5% reduction of the resistance
=>
Fuels for the Future
Muscles Wind Coal Oil
The Fuel of the Future For
Stena’s Vessels
Emission levels
Available fuels and
volumes
Economy
Technology
Politics
Environment
External
Interntal
NGO
EU
IMO
USA
Combustion SCR Scrubbers Fuel cells Additives
Health risks Safety
SOx
NOx
CO2
PM
Operation MW/tonneskm World Scale Investments Trading
HFO
MDO
LNG
LPG
LBG
Fuel cells
Coal
Biodiesel, Fischer-Tropsch
Alcohols (Methanol)
Electric
Nuclear
Pellets
World wide Europé Scandinavia
Internal workshop Feb 2007
SECA North Europe
SECA = Sulphur Emission Control Areas (North Europe and domestic US)
The present SECA alternatives
HFO with scrubbers LNG Low sulphur fuel 0,1%S
Methanol
Fuels for the Future
Our view is that we have to face a fuel mosaic as different ship types need different solutions.
• In a 10-15 year perspective HFO with scrubber, LSHFO and MGO will still be the most used fuels for ships due to their cost effectiveness (including a proposed CO2/tonnes fee of abt 50USD/tonnes CO2))
• LNG will be a suitable fuel for new built ships in certain areas as logistics need to be well developed
• Methanol/Ethanol can be looked upon as a step towards fossil free shipping.
• Battery powered ships will be an attractive alternative for short sea shipping 15 years from now. Distances less than 100nm.
• In a longer perspective bio fuels and fuel cells will enter the market
Fuels for the future – Battery price expectation
Pilot projects onboard the Stena Jutlandica planned to start in 2017
• Step 1: Battery power on the thrusters
• Step 2: Conversion on two of the main engines
• Step 3: New customized ship, Stena Elektra, plug-in hybrid that is charged with green shore power and during operation
100% battery power in port and archipelago - no emissions in the coastal environment
In the open sea the ship is operated with MGO or methanol.
Steps towards the worlds largest plug-in hybrid vessel
Step 1 - Battery powered bow thrusters
Step 2 – Conversion on two of the main engines
Step 3 – New customized ship, Stena Elektra
Stena Elektra – A concept study of a future hybrid RoPax
The RoPax of the future!
• Battery technology
• Alternative fuels (for distances >100nm)
• Fuel cells in the future
• Autonomy for increased safety
• Modularized and flexible arrangement
• Reduced air resistance
• Further developed hull form and propulsion arrangement
Stena Elektra – A reality 2030!