Energy Efficiency SEEMP

Transcription

1 Energy Efficiency SEEMP

2 Contents Introduction How to Implement the SEEMP Best Practices Advantages Limitations

3 Introduction What is the SEEMP The Ship Energy Efficiency Management Plan (SEEMP) is a plan/tool that can be used by a company to identify, monitor and improve the energy efficiency of a ship or of the fleet. The SEEMP details methods to plan, implement, monitor and evaluate operational best practices for energy efficiency. As of the 1 st January 2013 it was mandated that the SEEMP be implemented onboard all new and existing ships. It should be developed by the ship owner or ship management company and tailored specifically to each ship.

4 Introduction What is the SEEMP It is important to remember that while the yield of individual measures may be small, the collective effect across the entire fleet will be significant (IMO 2009) The first section within the SEEMP is split into three sections: Planning Implementation Monitoring

5 How to Implement the SEEMP Planning Company specific measures Determining the ships current energy usage What energy efficiency measures are already implemented Select the best practices to increase efficiency to be implemented for the ship ship type, type of operation, cargo carried, Consideration should also be given to how effective the measures will be for varying operating conditions for the ship Within the planning section of the SEEMP it is emphasised that: particular consideration should be given to minimize any onboard administrative burden. (IMO 2009)

6 How to Implement the SEEMP Planning Company specific measures Reliant on the commitment and involvement of may stakeholders, including: ship repair yards ship owners Operators Charterers cargo owners ports and traffic management services Alignment of strategies Human resource development It is necessary that all stakeholders have the awareness Goal setting An important factor for incentivising changes: allowing the involved to judge their performance, improve their implementation and commit more readily to continual development.

7 How to Implement the SEEMP Implementation Establishment of the implementation system Each improvement the task should described fully The responsible qualified personnel should be assigned to each task Implementation and record-keeping During implementation, records should be taken for each improvement measure detailed within the program: particularly if the measure could not be implemented. These methods will then be useful for self-evaluation or internal review.

8 How to Implement the SEEMP Monitoring Monitoring tools Establish a method to monitor the energy efficiency of a ship quantitatively, preferably by international standard. Establishment of the monitoring system Continuous and consistent data is a key aspect. It is recommended within the SEEMP that the performance monitoring should be carried out on shore where possible to reduce administrative burden on board. Additionally, existing records should be utilised where possible Self-evaluation and improvement Voluntary reporting/review Publically available. -> benefits such as environmental-differentiated harbour fees

9 Fuel Efficient Operations Improved Voyage Planning This should be done with guidance from the IMO resolution A.893(21) (25 November 1999) on Guidelines for voyage planning. Weather routing Just in time To maximize the opportunity to use optimum (economic) speed, good and early communication should be made with the next port regarding berth availability. Ports should minimise delays and maximise energy efficiency. Port operation charges could be introduced for different handling arrangements.

10 Fuel Efficient Operations Speed optimisation Optimum speed (minimum fuel consumed per tonne mile) is not the same as minimum speed (where less than optimal speed will consume more fuel per tonne mile). Optimum speed should be determined by referring to the engine manufacturer s power/consumption curves and ship s propeller curve. Arrival times and loading/discharging berth availability should be considered Slow acceleration out of a port or estuary s (within engine load limits) Optimized shaft power Fuel efficiency savings can be made by operating at a constant shaft RPM (engine power). Engine management systems can be utilised to optimise this over human control.

11 Fuel Efficient Operations - Examples Weather Routing, for: Wind Waves Currents Seasonal Variations <10 % Fuel Consumption

12 Fuel Efficient Operations - Examples Slow Steaming Main Engine and Systems Tuning Different/Increased Maintenance Supply and Demand Safety % Fuel Consumption

13 Fuel Efficient Operations - Examples MAN Basics Ship Propulsion

14 Fuel Efficient Operations - Examples Virtual Arrival A known delay at the discharge port A mutual agreement between two (or more) parties to adapt the ship s arrival time to take advantage of the delay An agreement on how to calculate and report the Virtual Arrival and the performance of the vessel % CO 2 Reductions

15 Fuel Efficient Operations - Examples

16 Optimised Ship Handling Optimum trim Optimum ballast Optimum propeller and propeller inflow considerations Retrofit designs and retrofit technologies are now available for propellers to achieve energy efficiency savings. Optimum use of rudder and heading controls systems (autopilots)

17 Optimised Ship Handling Trim Optimisation Based on large Matrix of different combinations of draughts, trim and speed 1-3% Fuel Consumption

18 Optimised Ship Handling Self tuning, Adaptive, Autopilots 4 % Fuel Consumption

19 Optimised Ship Handling BMT Smart Services ABB - EMMA

20 Hull Maintenance Hull maintenance Regular hull inspections Optimum hull cleaning intervals Should the hull coating should be replaced? 10 % Fuel Oil Consumption

21 Hull Maintenance

22 Propulsion System Propulsion system Marine diesel engines have very high thermal efficiencies ( 50%) and this is maximised by modern electronic engines: which require specifically trained staff for greatest savings. The fuel cell (at 60% thermal efficiency) appears as the only more efficient option. Propulsion system maintenance Energy efficiency can be achieved by carrying out maintenance in line with the manufacturers instructions and according to the planned maintenance schedules. Condition monitoring can be used. Use of fuel additives Adjustment of cylinder lubrication oil consumption Valve improvements Torque analysis Automated engine monitoring systems

23 Waste heat recovery Utilise heat from the exhaust for the generation of either electricity or additional propulsion power. These systems are now commercially available but it may not be possible to retrofit them; rather they offer more of a new ship solution. Improved fleet management Feet planning Data sharing (efficiency, reliability, and maintenance-orientated data) between ships and company can aid fleet management. Improved cargo handling Optimum solutions for cargo loading (matching both ship and port requirements); although cargo handling is primarily in the control of the port. Energy management Electrical services should be carried out Optimising of reefer container stowage and cargo heating and ventilation Fuel type

24 Other measures A method for determining ship performance ( footprint ) should be established Renewable sources for energy (such as wind, solar and cell technology) should be considered for use along with wind assisted propulsion Compatibility of measures Consider other methods not listed in the SEEMP Assess the implications of different trade areas, operation and stakeholder objectives should be considered to achieve feasible overall performance. Age and operational service life of a ship The remaining service life of a ship will impact on the decision to install/ implement some measures due to payback periods. Trade and sailing area The sailing area of a ship will influence the effectiveness of many of the SEEMP measures. The trade of the ship may also change within its lift time

25 Advantages Provides a Management tool: Plan, Implement and Monitor Energy efficiency savings resulting in fuel savings will reduced fuel costs for the stakeholder responsible for fuel costs The SEEMP can help achieve operational energy efficiency savings in the short term and the long term (where as the EEDI offers more longer term savings)

26 Limitations The success of the SEEMP depends very much on the commitment of SEEMP developer: their commitment to detail within its development, commitment to implementation, and commitment to accurate monitoring review and improvement. The success of the SEEMP requires the participation and commitment of all stakeholders involved. An international standard to monitor energy efficiency has not yet been established The SEEMP only details measures that can be taken to improve energy efficiency; it does not provide details of how to achieve each of these measures. It is therefore likely that education and training is needed tailored for each level of stakeholder (including onshore management)