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Strictly confidential
Captain Franz Gerard Klassen, Fuel Strategy Manager, Global Marine Ops, APL DIGITAL SHIP 2014 14 October 2014, Suntec City, Singapore
ENERGY EFFICIENCY IN VESSEL OPERATIONS
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VIKING SHIP PROPELLED BY A COMBINATION OF MAN POWER AND WIND
LATE 15th - 16th CENTURY SHIP TYPICAL OF THE RENAISSANCE PERIOD
19TH CENTURY SHIP POWERED BY A COMBINATION OF STEAM AND SAIL
STEAM ENGINE
Energy efficiency in vessel operations
A BRIEF HISTORY…
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The Internal Combustion Engine
• Mechanical energy through combustion of fossil fuel, combined with an oxidiser other than coal gas
• Controllable thermal losses with increased energy efficiency
• Natural lubricants in fuel oil
• Higher calorific value than methane gas
• Lower maintenance frequency
• Higher applied energy
• New technology giving rise to electronic engines
• More precise controllable loads
• Greater mechanical efficiency
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What is Energy?
Energy is the capacity of a physical system to perform work
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What is Efficiency?
A level of performance that describes a process that uses the lowest amount of inputs to create the greatest amount of outputs, including personal time and energy
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An inherent and fundamental necessity for efficient energy
Underlying pre-requisite: An efficient energy conversion process on board
• Able to carry more goods • Need for faster ships • Sail further
• More environmentally friendly • Consume less fuel • Cost effective
MANEUVERING
CARGO HANDLING ˗ REFRIGERATED ˗ LIQUID ˗ GAS ˗ VENTILATION
HOTEL LOADS
FUEL – CHEMICAL ENERGY
AUXILIARY MACHINERY
PROPULSION
MECHANICAL ELECTRICITY HEATING COOLING
Fuel input
Energy Efficiency – The big picture
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Understanding the Energy Balance
• An indication of the actual fuel consumption per vessel/service
• A calculation based on ship’s designs and verified by onboard measurements
• Essential for addressing the key consumers onboard
• On board assessment – each consumer can be monitored for use in the energy balance
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Route & Voyage Management
Modification to service speeds • Easiest and most effective way to achieve
fuel saving • Lower fuel consumption through fuel
management
Fleet-wide implications • Port operations • Port approaches • Terminal velocity
Benefits • Revised efficient timetables • Efficient engine operations • Immediate payback
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Tank Management • Ship stability criteria • Maximum vs. minimum ballast • Adjustment of machinery system
Weather Routing • Forecasting & planning ahead • Avoid loss and delays • Increase service efficiency
Shipboard Operations
Optimum Trim • Positive vs. negative trim • Speed through the water • Impact on fuel consumption
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Regular propeller polishing • Checks marine fouling • Counters galvanic action • Prolongs propeller efficiency
Regular hull cleaning • Checks marine fouling • Counters galvanic action • Enhances under water efficiency
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Terminal Velocity & Port Turnaround
Terminal Productivity • Low crane intensity • Delays due to fuel transfers • Delays due to adverse weather
Vessel’s Performance • Higher sea speed • Port omissions • Higher fuel consumption • Lower energy efficiency
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Design Operation Procedures
Hull Form Optimization x
Propulsion Efficiency devices x x
Anti-Fouling & Coating x x
Waste Heat Recovery x
Auxiliary Engine x x
Engine/components tuning x x
Speed Control of Pumps and Fans x
Trim Optimization x
Weather Routing x
Speed Optimization x
Port/Ship Logistics x
Performance/Energy Monitoring x
Improved Power Management x
Crew Awareness x
Type of Fuel and Lubricants x
Paths of Energy Improvement Solutions
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Crew Competence – Training & Management
• Increase awareness of energy efficiency
• Training of key personnel onboard ships
• Understanding key areas for optimal operations
• Understanding energy efficiency
• Commitment and sustenance of energy efficiency
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Energy Monitoring • Logging of ship’s performance
• Utilizsation of energy data
– Electrical energy consumption – Main engine & auxiliary engine loads – Fuel consumption – Energy losses
Accountability • Assigning a person or team • Full-time focus on energy efficiency • Project execution • Project investment & budget
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Ship Design – Optimizing water flow around
Energy Efficiency...2015+
• The water plane of the hull
• The ship’s rudder
• Bulbous bow
• Propulsion improvement devices & PBCF
Pre-swirl Stator Mewis Duct
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Policies & Incentives • SEEMP • EEDI • Carbon emission trade
Energy Efficiency...2015+
Network Optimization • Slow steaming vs. optimum speed
Effects & Barriers • Charter parties • World bunker prices • Carbon dioxide emissions
Cold Ironing – Alternative maritime power
Intermodal Transportation • Transport Chain Optimization
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• Alternative fuel – Liquid Natural Gas
• The bad guys! • Costly engine retrofits • Storage space • Lack of port infrastructure • Not economically viable due to high
production cost
Alternative fuel – Liquid Natural Gas • The good guys! • A clean & efficient energy option • No unburned residue • High calorific value achieves a higher energy efficiency • Reduced governmental levies on carbon emissions • Methanol alcohol – a ‘fossil fuel-free future’ • Better fuel economy – distance per volume metrics
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Summary of current and future practices DESIGN OF SHIP AND SYSTEMS
OPTIMAL OPERATION OF COMPONENTS AND
SYSTEMS
OPTIMISATION OF TRADING, OPERATING, AND SHIP
MANAGEMENT PROCEDURES
FUTURE OF ENERGY EFFICIENCY IN SHIP
OPERATIONS • Optimisation of
bulbous bow
• Hull form design
• Soot blowing
• Auxiliary engine
• Trim optimisation
• Hull cleaning
• Propeller polishing
• Route planning
• Voyage management
• Speed management
• Bunkering/de-sludging • Port approach notices
• Port activities • Fuel grade
• Crew engagement (training,
incentive program)
• Fossil fuel-free future
• Alternative fuel – LNG • Hull & propeller geometry • Shore power/cold ironing
• Intermodal transport
• SEEMP/EEDI
• CO2 emissions
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A Point to ponder
• Time = Money
• 50 Kw electrical load in continuous operation
• Approximately 100 M/T of fuel per year
• Approximately US$60,000 per year/ship
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ACKNOWLEDGEMENTS THE NEXT GENERATION OF ENERGY MANAGEMENT, BY GEORGE DIMOPOULOS, NIKOLAOS KAKALIS, DNV GL
FUEL SAVING GUIDELNES FOR CONTAINER SHIPS, A JOINT PROJECT BY HSVA AND DNV SYSTEMATIC APPROACH TO ENERGY EFFICIENCY BY ESA JOKIOINEN, DELTA MARINE
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Strictly confidential
THANK YOU