Innovative developments for energy efficient shipping

Transcription

1 Innovative developments for energy efficient shipping Jan O. de Kat Innovation Dept., Maersk Maritime Technology

2 Who we are The A.P. Moller - Maersk Group is a diversified conglomerate, founded in 1904 by Mr A.P. Møller 116,000 employees and operations in more than 130 countries Business segments: Container shipping, Logistics Tankers, offshore supply and other shipping activities Container terminals Drilling and FPSOs Oil and gas production Retail activities Shipyards Other companies

3 Regulatory developments 2009 EU 0,1% S in port CA 0,1% S 24nm off the coast CA 50% NOx & PM reduction in port CA 80% NOx & PM reduction in port ECA Global General 1,0% S Invest in NOx reducing initiatives Required for CA port operation. Use of low Sulphur fuels in ECA areas. NOx Tier II 3,5% S 0,1% S NOx Tier III 0,5% S Use of low Sulphur fuels globally.

4 Regulatory developments 2009 EU 0,1% S in port CA 0,1% S 24nm off the coast CA 50% NOx & PM reduction in port CA 80% NOx & PM reduction in port ECA Global General 1,0% S Invest in NOx reducing initiatives Required for CA port operation. Use of low Sulphur fuels in ECA areas. NOx Tier II 3,5% S 0,1% S NOx Tier III Ballast water treatment, newbuildings 0,5% S Use of low Sulphur fuels globally.

5 Regulatory developments 2009 EU 0,1% S in port CA 0,1% S 24nm off the coast CA 50% NOx & PM reduction in port CA 80% NOx & PM reduction in port ECA Global General 1,0% S Invest in NOx reducing initiatives Required for CA port operation. Use of low Sulphur fuels in ECA areas. NOx Tier II 3,5% S 0,1% S NOx Tier III Ballast water treatment, newbuildings Ballast water treatment, existing ships. 0,5% S Use of low Sulphur fuels globally.

6 Regulatory developments 2009 EU 0,1% S in port CA 0,1% S 24nm off the coast CA 50% NOx & PM reduction in port CA 80% NOx & PM reduction in port ECA Global General 1,0% S CO2 reduction initiatives Invest in NOx reducing initiatives Required for CA port operation. Use of low Sulphur fuels in ECA areas. NOx Tier II 3,5% S 0,1% S NOx Tier III Ballast water treatment, newbuildings Ballast water treatment, existing ships. 0,5% S Use of low Sulphur fuels globally.

7 Environmental Impact of Operational Activities Operations: Operating ~1500 ships Over 10 Mtons of fuel per year

8 Environmental Impact of Operational Activities Operations: Operating ~1500 ships Over 10 Mtons of fuel per year

9 Innovation and Technology Application Container cooling Emission cleaning Operations decision support Cargo/port Operations Aft hull, rudder, propeller Propulsion aux machinery Antifouling, Drag reduction Bow, Bulb

10 Energy efficiency

11 Energy efficiency Main engine and machinery systems Waste heat recovery, system optimization Ventilation and pump optimization Closed-loop control M.E.; Reefers

12 Energy efficiency Main engine and machinery systems Waste heat recovery, system optimization Ventilation and pump optimization Closed-loop control M.E.; Reefers Hull and propeller optimization Non-conventional propellers Drag reduction Anti-fouling

13 Energy efficiency Main engine and machinery systems Waste heat recovery, system optimization Ventilation and pump optimization Closed-loop control M.E.; Reefers Hull and propeller optimization Non-conventional propellers Drag reduction Anti-fouling Service performance Decision support On board guidance

14 Energy efficiency of machinery

15 Waste heat recovery Recover approx. 10% of engine output Reduction of all emissions by 10% Total plant efficiency of 55%

16 Machinery optimization Efficiency of pump and ventilation systems Re-design of systems aimed at minimizing energy consumption Ventilation, cooling pumps Potential: max. 1% CO 2 reduction for a container ship APMM and Odense Steel Shipyard

17 Energy efficient ventilation Typical yard specification text for engine room ventilation:

18 Energy efficient ventilation Typical yard specification text for engine room ventilation: The machinery space to be ventilated by mechanical ventilating system. The ventilating fan to supply fresh air to the operating station and other necessary places in the engine room through air ducts. The air ducts to be of fabricated steel plate of 2.3 mm from the passage as far as practicable. The mean air velocity to be about 8 m/sec at the outlet of each branch duct.

19 Energy efficient ventilation Typical yard specification text for engine room ventilation: The machinery space to be ventilated by mechanical ventilating system. The ventilating fan to supply fresh air to the operating station and other necessary places in the engine room through air ducts. The air ducts to be of fabricated steel plate of 2.3 mm from the passage as far as practicable. The mean air velocity to be about 8 m/sec at the outlet of each branch duct. Such a specification is used by the yards to source and install the lowest cost components, without taking the power demand into consideration.

20 Engine room ventilation improvements Physical measurements were made onboard Laura Mærsk and Maersk Kuantan. Laura Mærsk has savings potential of 73kW: Air intake filters Inducers on the fan inlets. Remove rat nets on outlets. Change the impellers to the new design point. Maersk Kuantan has savings potential of 80kW: Higher efficiency electric motors, impellers and guide vanes. Replacing the inlet protection grills. Improve the outlets for fans 3 & 4 Control the fan capacity by frequency converters in relation to over pressure & temperature in the engine room. Further measurements are planned to be done onboard VLCC Maersk Nautilus Supplier of fans: not involved in designing the ventilation system/layout!

21 CLT Propeller Project Conventional and CLT propeller side by side CFD model of CLT propeller

22 CLT Propeller Project CLT propulsion principle Endplates fitted with minimum resistance Modified pressure distribution on suction & downstream sides Radial load distribution moved closer to propeller tips Fitted on more than 250 ships Conventional and CLT propeller side by side CFD model of CLT propeller

23 CLT Propeller Project CLT propulsion principle Endplates fitted with minimum resistance Modified pressure distribution on suction & downstream sides Radial load distribution moved closer to propeller tips Fitted on more than 250 ships Advantages (Sistemar claim): Higher efficiency (5-8% expected) Lower vibration & noise levels Conventional and CLT propeller side by side CFD model of CLT propeller

24 CLT Propeller Project CLT propulsion principle Endplates fitted with minimum resistance Modified pressure distribution on suction & downstream sides Radial load distribution moved closer to propeller tips Fitted on more than 250 ships Advantages (Sistemar claim): Higher efficiency (5-8% expected) Lower vibration & noise levels Improved maneuverability Conventional and CLT propeller side by side Main objective: CFD model of CLT propeller

25 CLT Propeller Project CLT propulsion principle Endplates fitted with minimum resistance Modified pressure distribution on suction & downstream sides Radial load distribution moved closer to propeller tips Fitted on more than 250 ships Advantages (Sistemar claim): Higher efficiency (5-8% expected) Lower vibration & noise levels Improved maneuverability Conventional and CLT propeller side by side Main objective: To confirm claimed advantages in full scale on Roy CFD model of CLT propeller

26 Advantages Higher efficiency Reduced fuel consumption, or Increased ship speed Higher thrust Improved maneuvering No tip vortex Reduced noise and pressure pulses Less cavitation Reduced erosion, noise and vibration Problems Blade tip cavitation Has been a problem for earlier tip fin propellers and raked propellers SISTEMAR claims to have solved problem with new approach which determines optimal angle between tip fin and blade Scale effects

27 Example of designs under development. Design for operation. From standard off-the-shelf product to environmental excellence

28 Green Ship technology NOx/SOx reduction Exhaust gas recirculation 50% NOx reduction Air humidification methods 60% NOx reduction SCR and Scrubbers >90% NOx reduction >90% SOx reduction Optimization of ancillary systems (pumps, fans, ) 1% CO 2 CO 2 reduction Waste heat recovery 10% CO 2 reduction up to 16% combined with air humidification method Improved engines and control 1-3% CO 2 Alternative fuels: LNG 80% NOx reduction 100% SOx reduction More efficient propulsors Drag reduction 5-15% CO 2

29 Combining State-of-the-art Technology Challenge the conventions of standard ship designs Hull design Propulsion Machinery

30 Combining State-of-the-art Technology Challenge the conventions of standard ship designs Hull design Propulsion Machinery

31 to get environmental performance and an energyefficient ship prepared for the future Energy Efficiency Design Index - Container vessels Eff. index (g CO2/ton*nm) ,000 41,500 81,000 DWT (tonnes) 120, ,000

32 to get environmental performance and an energyefficient ship prepared for the future Energy Efficiency Design Index - Container vessels Eff. index (g CO2/ton*nm) ,000 41,500 81,000 DWT (tonnes) 120, ,000

33 High degree of operational flexibility: slow steaming when needed

34 Operational excellence

35 Innovation Innovation is the embodiment, combination, or synthesis of knowledge in original, relevant, valued new products, processes, or services contributing to a sustainable and profitable business.

36 Thank you for your attention

37 Thank you for your attention Navigare necesse est Innovare