How to create an useful SEEMP?

CLIA Leadership Forum

Miami – 15th November 2012

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The SEEMP is a ship environmental performance management tool :

It should be developed by the owner in accordance with the IMO Guidelines* adopted at MEPC 63 in March 2012 (actually as of MEPC.1/ Circ.683).

There are four steps to consider:

Ship Energy Efficiency Management Plan

Reference MSC.203(62) – New chapter 4 to MARPOL Annex VI – Reg.22

Entry into force 01/01/2013 (new ships) – by the first IAPP intermediate or renewal survey, whichever is first, on or after 01/01/2013 for existing ships

Applicable to all new & existing ships ≥ 400gt

Planning

which determines the status of ship energy usage and the expected improvements of ship energy efficiency

Implementation

which includes the development of the procedures for energy management and the definition of the tasks to be performed

Self Evaluation & Improvement

to evaluate the effectiveness of the planned measures and of their implementation and to improve the SEEMP

Monitoring & Measurement

which provides a quantitative indicator of the ship energy effiency

* Resolution MEPC.213(63) 2012 Guidelines for the Development of a SEEMP, Adopted on 2 March 2012.

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Energy Saving Measures Ranking

Order of magnitude

Saving > 20%

10<Saving < 20%

5< Saving < 10%

2,5 < Saving < 5%

1 < Saving < 2,5%

Saving < 1%

Letter

A

B

C

D

E

F

Energy Efficiency improvement measures

Weather routing

Just in time arrival

Speed optimization

Super Slow Steaming

Optimum trim

Optimum ballast condition

Hull coating cleaning

Propeller cleaning and polishing

Engine auto-tuning

Main engine derating

Main engine variable turbo area

Use of alternative fuels

Waste Heat Recovery System

Potential energy saving

D

D

D

A

C

D

C

C+

D

E

E

B

B

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Example & Content of a SEEMP

► A SEEMP should contain the following information

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International Energy Efficiency Certificate (IEEC)

► Owner can request BV to carry out a SEEMP review and issue an IEE SoC

► The IEE SoC is an evidence that the SEEMP has been developed taking into account guidelines adopted by the Organization, in compliance with IMO MEPC.203(62) Regulation 22.2.

► The IEE SoC will allow any ship above 400 GT to obtain the IEE Certificate as soon as the required verification survey on-board has been completed, when the amendments to MARPOL VI will apply to the vessel

SEEMP Review - International Energy Efficiency Statement of Compliance

Identifying potential fuel savings

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► Voluntary approval of the Ship Energy Efficiency Management Plan of individual ships:

The Owner provides the SEEMP for initial review and approval, as well as future revisions of the plan. The Owner will also send additional documents for information.

It is proposed to evaluate the different possible measures initially suggested by the Owner and the order of magnitude of the possible gains by building an energy flow model of the ship with a simulation tool and using it to simulate the effect of the proposed measures in operating conditions defined by the Owner. It is also checked that the SEEMP is effectively implemented onboard the ships.

How to go beyond the statutory requirements

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Methodology – an holistic approach

Establishing an Energy Audits

Install instrumentation on fuel flow and shaft line power

Use of Energy simulating tools

Use of CFD calculations tools

Holistic approach: Use of Energy Management System standard

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Energy Audit

► 1. Definition of data to be measured for the energy performance assessment

► * The data are to include at least the input parameters used to calculate the performance indicators used within the scope of the SEEMP

► * The data collected/measured should include at least the following over a 6-month period

► fuel consumption per fuel type (HFO, DO…) / fuel quality (lower heating value, density) of the fuel consumed / cargo transported and distance (including under ballast)

► 2. List of fuel consumers on-board : Main engine / propulsion, Aux. engines, Aux. Boilers

► 3. List of major electrical power consumers : rotating machinery, lighting system…

► 4. List of steam consumers

► 5. Procedures and devices to measure the data

► Overall fuel/electrical power/steam consumption / fuel/electrical power consumption/steam per consumer or per consumers category, if measured / measuring devices and procedures to calibrate the devices / measurement periodicity / record-keeping procedures / person responsible for measuring and keeping records

► Verification on-board by a Surveyor

► Sampling verification that the procedures to measure the data are properly implemented and that the measuring devices are properly maintained and/or calibrated.

► Verification that the Energy Performance Indicators are calculated from the collected data over the last 6 months of the ship’s operations to assess the current energy performance status.

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Instrumentation

Propulsion monitoring

Machinery and Auxiliaries intrumentation

Prop. efficiency

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CFD calculation for potential fuel saving

Description: unsteady CFD

simulations of a rotating propeller

Outputs of the simulations:

Kt, Kq and efficiency of the

propeller in open water

Estimation of cavitation onset

risks

Example of applications:

Evaluation of propeller

performances

Evaluation Energy Saving Devices

close to propeller

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Loaded tip propeller Twisted rudder CR propeller

ACS

Energy Saving Devices (ESD) – Some outputs

Reduction in viscous pressure resistance ~2%

Fins in front of propeller Ducktail

Ship length increased

Reduction in wave resistance 2~5%

Improved efficiency 6~12% Reduction in viscous pressure resistance ~2%

Recovering of kinetic energy due to the rotational flow

SSPA 5~10%

Use of Energy Simulating Tools for Ship Energy

Modelling

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Purposes of such tool are:

Create a comprehensive energy model of a ship

Establish the energy balance and calculate the energy efficiency of the ship

Predict the fuel consumption and emissions (NOx, SOx, CO2)

Simulate and optimize the energy flows with account of the operational profiles

Energy Simulating Softwares

Management Module

Consumers

Module

System 1

Steam

System n

Fresh Water

System 2

Propulsion

…

Producers

Module

WHR

Main

Engine

Auxiliary

Engine

Boiler

Emissions

Module

NOx

SOx

CO2

Fuel Module

Fuel 1 Fuel 2 Fuel 3

Navigation

Module Operational

Profile

Ship speed

Day/Night

Summer/Winter

…

Need Emit Product

Deliver

16 Saturday,

December

1, 2012

Library Ship modeling Example of

Results

Speed profile

CO2 emissions

Fuel consumption

Library Ship modeling

Example of Results

Speed profile

CO2 emissions

Fuel consumption

Energy Efficiency Simulating Tools (SEECAT)

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Cruise Vessel Case Study

Verification with sea data and comparison between alternative systems

Main ship characteristics:

Tonnage 153000 GT

Diesel-electric propulsion

2 propulsion lines, 24 MW each

Electrical plant : 6 generating sets

Steam production : 6 exhaust gas recovery boilers and 2 oil-fired boilers

Fresh water production : 2 distillers (evaporators) and 3 reverse osmosis production units

Cooling installation: 5 chiller plants

Advanced Heat Recovery Plant – AHRP

(Co work BV + STX France)

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Timewise definition of:

Ship speed

Fresh water consumption

Type of fuel

Navigation mode

Sea water temperature

Outside air temperature

Main results:

Fuel(s) mass flow and total consumption

Mass flow and total emitted mass of CO2, NOx, SOx

Level in fresh water tanks

Case Study – Modelling & sea data

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Average DG's specific fuel consumption

0

50

100

150

200

250

300

Cruise 1 Cruise 2 Cruise 3 Cruise 4

g/K

Wh

_e

lec

Measured

Simulated

Modelling & sea data

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Thermal power balance with AHRP (winter):

Thermal power balance bis

0

5000

10000

15000

20000

25000

30000

35000

40000

45000

0 165Time [h] - non linear

Po

we

r [k

W]

WHR boilers DG cooling Oil-fired boilers All Consumers All consumers except distillers

Design alternatives

21 Energy Efficiency Seminar – Copenhagen 2011 IGC June 17, 2010

Thank you - Any question?

ShipEfficiency@bureauveritas.com