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Electric and hybrid_marine_world_expo_patrick_baan_062014

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Patrick Baan is sharing Wärtsilä's view on the benefits of electric and hybrid propulsion @ Electric & hybrid marine world expo

Patrick Baan is sharing Wärtsilä's view on the benefits of electric and hybrid propulsion @ Electric & hybrid marine world expo


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  • 1. Doc.ID: Revision: Status:© Wärtsilä33/ THE BENEFITS OF HYBRID PROPULSION AND ELECTRIFICATION FOR VESSEL OWNERS WÄRTSILÄ CORPORATION PATRICK BAAN 24.06.2014 6/27/2014 The benefits of hybrid propulsion and electrification1
  • 2. Doc.ID: Revision: Status:© Wärtsilä33/ Content • Scope • Power management in normal operation • DP operations • Integrated control combining multiple systems • Opportunities of peak shaving • Future outlook • Conclusions 6/27/2014 The benefits of hybrid propulsion and electrification2
  • 3. Doc.ID: Revision: Status:© Wärtsilä33/ The most complete marine offering on earth The benefits of hybrid propulsion and electrification3 6/27/2014
  • 4. Doc.ID: Revision: Status:© Wärtsilä33/ Electric Propulsion – Our achievements 6/27/2014 The benefits of hybrid propulsion and electrification4 Increased Energy Efficiency Redundancy and Reliability Safety
  • 5. Doc.ID: Revision: Status:© Wärtsilä33/ Mechanical transmission • Mechanical transmission has highest efficiency, • But steel shaft is too rigid for demanding applications 6/27/2014 The benefits of hybrid propulsion and electrification5
  • 6. Doc.ID: Revision: Status:© Wärtsilä33/ Electric transmission • Electric tranmission has more components • But provides greater flexability Is the extra “complexity” worth the flexability? 6/27/2014 The benefits of hybrid propulsion and electrification PMS Power Management System GEN POWER DRIVE Frequency Converter Motor Engine 6
  • 7. Doc.ID: Revision: Status:© Wärtsilä33/ Benefits of a common power system • Power supply and consumers connected to a common system • Power supply can be easily connected and disconnected based on needs • Consumers can be easily connected and disconnected based on needs • Consumers are controlled independent from power supplies • Power management system can prioritise consumers to which power is available 6/27/2014 The benefits of hybrid propulsion and electrification7
  • 8. Doc.ID: Revision: Status:© Wärtsilä33/ Common power sytems 6/27/2014 The benefits of hybrid propulsion and electrification Mechanic like “first industrial revolution” Complex and costly to build and control Pneumatic Widely used for workshop tools. “spill” not harmfull, easy connections Low energy transmission efficiency Hydraulic Used for linear motors like in earth moving machinery, propellor blades. Low energy transmission efficiency. Electric Very commonly used in many applications. Very good control possibilities; 8
  • 9. Doc.ID: Revision: Status:© Wärtsilä33/ 170 175 180 185 190 195 200 205 210 0 25 50 75 100 Sfecificconsumption[g/kWh] Engine load [% of MCR] Fuel cons (specific) Fuel consumption diesel engine y = 0,0222x2 + 9,0953x + 126,01 R² = 0,9977 y = 0,0235x2 + 8,371x + 183,58 R² = 0,9955 0 200 400 600 800 1000 1200 1400 0 25 50 75 100 Fuelconsumption[kg/h] Engine load [% of MCR] Fuel cons (absolute) Y=A*X + B  Least possible engines running gives lowest fuel consumption 6/27/2014 The benefits of hybrid propulsion and electrification9
  • 10. Doc.ID: Revision: Status:© Wärtsilä33/ Scalable power system Totalefficiency Load Totalefficiency Load Thermal engine SFOC Output Totalefficiency Load Total vessel 10 6/27/2014 The benefits of hybrid propulsion and electrification
  • 11. Doc.ID: Revision: Status:© Wärtsilä33/ An avarage winter day at Northsea 11 6/27/2014 The benefits of hybrid propulsion and electrification
  • 12. Doc.ID: Revision: Status:© Wärtsilä33/ Measured load variations – mechanical propulsion – Bit Viking 12 4 m significant wave height (about “average” conditions at North sea in Winter) 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 0.7 0.75 0.8 0.85 0.9 0.95 1 Torque,Speed[perunit] Time [s] Bit Viking 15-10-07 0.96 0.98 1 Torque Engine speed 6/27/2014 The benefits of hybrid propulsion and electrification
  • 13. Doc.ID: Revision: Status:© Wärtsilä33/ Electrical versus mechanical propulsion at sea Wärtsilä Electrical propulsion: Can be operated in power control for the propulsor motors: – Load fluctuations from propulsor “absorbed” by fluctuations in propulsor rpm – Vessel mass used as energy storage – Load fluctuations to the common power system limited – Higher average load can be maintained – “stationary” fuel consumption – “stationary” emissions – Smooth operation of thermal engine Mechanical propulsion: Control system regulates the speed of the engines – Changes in torque demand to be controlled within limited speed window to avoid over-/ under speed and ensure engine can deliver enough power – High load fluctuations exposed to entire drive train – Risk for surge of turbocharger – Load peaks to be within engine capability  Avarage load well below max power – Increased fuel consumption – Increased emissions – Risk to stall gas engine or trip to diesel 13 6/27/2014 The benefits of hybrid propulsion and electrification
  • 14. Doc.ID: Revision: Status:© Wärtsilä33/ Thermal engines Change in load 1. Increase amount of fuel 2. Warmer air 3. More mechanical power produced 4. In case of dynamic loading amount of fuel is already reduced before full power potential reached  Higher exhaust gas temperature Increased NOx emissions Increased amount of unburned fuel in ottocycle engine 6/27/2014 The benefits of hybrid propulsion and electrification14
  • 15. Doc.ID: Revision: Status:© Wärtsilä33/ Gas engines (otto cycle) • Lean burn otto cycle gas preferred choice because of lowest emissions 6/27/2014 The benefits of hybrid propulsion and electrification NG in Lean burn otto cycle HFO Diesel cycle 0 10 20 30 40 50 60 70 80 90 100 CO2 NOx SOx Particulates Emissionsvalue[%] - 85 % - 25 % 15
  • 16. Doc.ID: Revision: Status:© Wärtsilä33/ Lean burn otto cycle combustion 20 16 12 8 4 0.6 1.0 1.4 1.8 2.2 2.6 Operating window Thermalefficiency[%] NOxemissions[g/kWh] BMEP[bar] Air / Fuel ratio Knocking Misfiring 0.8 1.2 1.6 2.0 2.4 6 10 14 18 22 Optimum performance for all cylinders 16 6/27/2014 The benefits of hybrid propulsion and electrification
  • 17. Doc.ID: Revision: Status:© Wärtsilä33/ Lean burn otto cycle- dynamic operation 6/27/2014 Air/fuel ratio Knocking Torque Misfiring Fast control system required to keep gas engine going closest to optimum The benefits of hybrid propulsion and electrification17
  • 18. Doc.ID: Revision: Status:© Wärtsilä33/ DP operation 6/27/2014 The benefits of hybrid propulsion and electrification18
  • 19. Doc.ID: Revision: Status:© Wärtsilä33/ DP capability – LLC benefit • During critical operations remaining capability in case of failure occurs has to be enough for required conditons! 6/27/201419 The benefits of hybrid propulsion and electrification
  • 20. Doc.ID: Revision: Status:© Wärtsilä33/ Wärtsilä Low Loss Concept (LLC) •4 splitt distribution system •Each drive fed from 2 busses •Two 30-degrees phase-shifted generator lines to cancel THD below 8% •No electrical losses in input transformers 6/27/201420 The benefits of hybrid propulsion and electrification
  • 21. Doc.ID: Revision: Status:© Wärtsilä33/ DP operation in calm weather 6/27/201421 The benefits of hybrid propulsion and electrification
  • 22. Doc.ID: Revision: Status:© Wärtsilä33/ Wartsila LLC hybrid • In DP operation limited / no possability for the power management system to compensate the dynamic loadings from the propulsors with the other power consumers • To provide the required redundancy in DP operation at least n+1 gensets are to be in operation • Sufficient power needs to be available to handle the peaks – The result is low load and dynamic operation • Similar situation in case of active heavy compensation 6/27/201422 The benefits of hybrid propulsion and electrification
  • 23. Doc.ID: Revision: Status:© Wärtsilä33/ DP operation – gas engine example Typical area for redundant operations (even with LLC) Load % Efficiency% 0 10 20 30 40 50 60 70 80 90 45 40 35 30 25 20 6/27/201423 The benefits of hybrid propulsion and electrification
  • 24. Doc.ID: Revision: Status:© Wärtsilä33/ DP operation – gas engine example Load % Efficiency% 0 10 20 30 40 50 60 70 80 90 45 40 35 30 25 20 Batteries increase load of running genset and smoothen load demand in DP operation 6/27/201424 The benefits of hybrid propulsion and electrification
  • 25. Doc.ID: Revision: Status:© Wärtsilä33/ Wäartsila LLC Hybrid - peakshaving 6/27/2014 Thruster load Engine power Battery power 25 The benefits of hybrid propulsion and electrification
  • 26. Doc.ID: Revision: Status:© Wärtsilä33/ Wärtsilä LLC hybrid • Batteries to provide the “spare” power in case genset is shut down  Less gensets can be in operation. Running gensets are operated at higher load • Batteries to take the dynamics avaraging the power required from the gensets. • Instant loading capability of the batteries greatly improve the dynamic performance of the system for enhanced safety 6/27/201426 The benefits of hybrid propulsion and electrification
  • 27. Doc.ID: Revision: Status:© Wärtsilä33/ Keep it under control • Increased complexity of the power sytems made managable with integrated automation systems • New and lower cost of sensors enable to have better informaton to support decissions of the operator • New sensors and processing technologies enable for better condition monitoring and failure prevention warnings • An integrated bridge provides all navigational information through common user interface using multifunctional navigation workstations. • Wartsila control and communication centre makes the next step by integrating navigation with the vessel control 6/27/201427 The benefits of hybrid propulsion and electrification
  • 28. Doc.ID: Revision: Status:© Wärtsilä33/ 3C The intelligent integration platform Multifunction displays: all information easy available to support the master in making his decisions 6/27/201428 The benefits of hybrid propulsion and electrification
  • 29. Doc.ID: Revision: Status:© Wärtsilä33/ ECDIS CONNING RADAR ECDIS CONNING RADAR ECDIS CONNING RADAR GATEWAY WÄRTSILÄ INTEGRATED AUTOMATION RAYTHEON SYNAPSIS INTEGRATED NAVIGATION Multifunction Stations 6/27/201429 The benefits of hybrid propulsion and electrification
  • 30. Doc.ID: Revision: Status:© Wärtsilä33/ 3. ECOmeter2. Weather routing 1. Route planning on ECDIS Performance optimization 4. Optimized Route plan 5. Speed Pilot6. Execution Performance optimization 6/27/201430 The benefits of hybrid propulsion and electrification
  • 31. Doc.ID: Revision: Status:© Wärtsilä33/ What’s next 1. Self controlling redundant systems will gradually replace decission support systems and human decission 2. Ship’s without technical crew, only humans for navigation 3. Remotely navigated vessels 4. Self navigating vessels • Reduced crew and crew-less vessels offer opportunities to improve vessel efficiency further: – No/less accommodation needed freeing up space for ship's industrial mission – No/less power needed to support the human wellbeing which reduces overall energy consumption – Number of day’s at sea can be increased more freely enabling slower steaming 6/27/201431 The benefits of hybrid propulsion and electrification
  • 32. Doc.ID: Revision: Status:© Wärtsilä33/ CONCLUSION Mechanical transmission has the highest efficiency, but electric and hybrid propulsion can result in better overall system performance by utilising thermal engines at their best: – Electric transmission gives highest flexability to minimize partload – Common power system increases redundancy – Power control reduces the dynamics requires from the gensets – Power management system prioritizes the available power amongs the users – Batteries will shave the peak load in case of dynamic loading – Batteries replace low load running gensets – Yes, it’s worth it! 6/27/201432 The benefits of hybrid propulsion and electrification
  • 33. Doc.ID: Revision: Status:© Wärtsilä33/ Patrick Baan +39 335 776 35 69 patrick.baan@wartsila.com www.wartsila.com Thank you. 6/27/2014 The benefits of hybrid propulsion and electrification33