Revoked by MEPC.254(67)

 

 

RESOLUTION MEPC.214(63)

 

Adopted on 2 March 2012

 

2012 GUIDELINES ON SURVEY AND CERTIFICATION OF THE ENERGY EFFICIENCY DESIGN INDEX (EEDI)

 

 

 

THE MARINE ENVIRONMENT PROTECTION COMMITTEE,

 

RECALLING Article 38(a) of the Convention on the International Maritime Organization concerning the functions of the Marine Environment Protection Committee (the Committee) conferred upon it by international conventions for the prevention and control of marine pollution,

 

RECALLING ALSO that, at its sixty-second session, the Committee adopted, by resolution MEPC.203(62), amendments to the Annex of the Protocol of 1997 to amend the International Convention for the Prevention of Pollution from Ships, 1973, as modified by the Protocol of 1978 relating thereto (inclusion of regulations on energy efficiency for ships in MARPOL Annex VI),

 

NOTING the amendments to MARPOL Annex VI adopted at its sixty-second session by inclusion of a new chapter 4 for regulations on energy efficiency for ships, are expected to enter into force on 1 January 2013 upon their acceptance on 1 July 2012,

 

NOTING ALSO that regulation 5 (Surveys) of MARPOL Annex VI, as amended, requires ships to which chapter 4 applies shall also be subject to survey and certification taking into account guidelines developed by the Organization,

 

RECOGNIZING that the amendments to MARPOL Annex VI requires the adoption of relevant guidelines for smooth and uniform implementation of the regulations and to provide sufficient lead time for industry to prepare,

 

HAVING CONSIDERED, at its sixty-third session, the draft 2012 Guidelines on survey and certification of the Energy Efficiency Design Index (EEDI),

 

1.                       ADOPTS the 2012 Guidelines on survey and certification of the Energy Efficiency Design Index (EEDI), as set out in the annex to the present resolution;

 

2.                       INVITES Administrations to take the annexed Guidelines into account when developing and enacting national laws which give force to and implement provisions set forth in regulation 5 of MARPOL Annex VI, as amended;

 

3.                       REQUESTS the Parties to MARPOL Annex VI and other Member Governments to bring the annexed Guidelines on survey and certification of the Energy Efficiency Design Index (EEDI), to the attention of masters, seafarers, shipowners, ship operators and any other interested groups;

 

4.                       AGREES to keep these Guidelines under review in light of the experience gained; and

 

5.                       REVOKES Interim Guidelines circulated by MEPC.1/Circ.682, as from this date.

 

ANNEX

 

2012 GUIDELINES ON SURVEY AND CERTIFICATION OF THE ENERGY EFFICIENCY DESIGN INDEX (EEDI)

 

 

 

TABLE OF CONTENTS

 

 

 

1                        GENERAL

 

2                        DEFINITIONS

 

3                        APPLICATION

 

4                        PROCEDURES FOR SURVEY AND CERTIFICATION

 

4.1                   General

4.2                   Preliminary verification of the attained EEDI at the design stage

4.3                   Final verification of the attained EEDI at sea trial

4.4                   Verification of the attained EEDI in case of major conversion

 

 

 

 

Appendix 1          Sample of EEDI Technical File

Appendix 2          Guidelines for validation of electric power tables for EEDI (EPT-EEDI)

Appendix 3          Electric power table form for EEDI (EPT-EEDI Form) and statement of validation

 

1                         GENERAL

 

The purpose of these Guidelines is to assist verifiers of Energy Efficiency Design Index (EEDI) of ships in conducting the survey and certification of the EEDI in accordance with regulations 5, 6, 7, 8 and 9 of MARPOL Annex VI, and assist shipowners, shipbuilders and manufacturers being related to the energy efficiency of a ship and other interested parties in understanding the procedures of the survey and certification of the EEDI.

 

2                         DEFINITIONS¹

_____________________

 1           Other terms used in these Guidelines have the same meaning as those defined in the EEDI Calculation Guidelines.

 

2.1                   Verifier means an Administration or organization duly authorized by it, which conducts the survey and certification of the EEDI in accordance with regulations 5, 6, 7, 8 and 9 of MARPOL Annex VI and these Guidelines.

 

2.2                   Ship of the same type means a ship of which hull form (expressed in the lines such as sheer plan and body plan) excluding additional hull features such as fins and of which principal particulars are identical to that of the base ship.

 

2.3                   Tank test means model towing tests, model self-propulsion tests and model propeller open water tests. Numerical calculations may be accepted as equivalent to model propeller open water tests or used to complement the tank tests conducted (e.g. to evaluate the effect of additional hull features such as fins, etc., on ship's performance), with approval of the verifier.

 

3                         APPLICATION

 

These Guidelines should be applied to new ships for which an application for an initial survey or an additional survey specified in regulation 5 of MARPOL Annex VI has been submitted to a verifier.

 

4                         PROCEDURES FOR SURVEY AND CERTIFICATION

 

4.1                   General

 

4.1.1             Attained EEDI should be calculated in accordance with regulation 20 of MARPOL Annex VI and the "Guidelines on the method of calculation of the attained EEDI for new ships" ("EEDI Calculation Guidelines", hereafter). Survey and certification of the EEDI should be conducted on two stages: preliminary verification at the design stage, and final verification at the sea trial. The basic flow of the survey and certification process  is presented in figure 1.

 

4.1.2             The information used in the verification process may contain confidential information of submitters, which requires Intellectual Property Rights (IPR) protection. In the case where the submitter want a non-disclosure agreement with the verifier, the additional information should be provided to the verifier upon mutually agreed terms and conditions.

  

 

________________________

*    To be conducted by a test organization or a submitter itself.

 

Figure 1: Basic Flow of Survey and Certification Process

 

 

 

4.2                   Preliminary verification of the attained EEDI at the design stage

 

4.2.1             For the preliminary verification at the design stage, an application for an initial survey and an EEDI Technical File containing the necessary information for the verification and other relevant background documents should be submitted to a verifier.

 

4.2.2                 EEDI Technical File should be written at least in English. The EEDI Technical File should include at least but not limited to:

 

.1                deadweight (DWT) or gross tonnage (GT) for passenger and ro-ro passenger ships, the maximum continuous rating (MCR) of the main and auxiliary engines, the ship speed (V^ref), as specified in paragraph 2.2 of the EEDI Calculation Guidelines, type of fuel, the specific fuel consumption (SFC) of the main engine at the 75 per cent of MCR power, the SFC of the auxiliary engines at the 50 per cent MCR power, and the electric power table^† for certain ship types, as necessary, as defined in the EEDI Calculation Guidelines;

 ______________________

^†        Electric power table should be validated separately, taking into account guidelines set out in appendix 2 to these Guidelines.

 

.2               power curve(s) (kW – knot) estimated at design stage under the condition as specified in paragraph 2.2 of the EEDI Calculation Guidelines, and in the event that the sea trial is carried out in a condition other than the above condition, then also a power curve estimated under the sea trial condition;

 

.3               principal particulars, ship type and the relevant information to classify the ship into such a ship type, classification notations and the overview of propulsion system and electricity supply system on board;

 

.4               estimation process and methodology of the power curves at design stage;

 

.5               description of energy saving equipment;

 

.6               calculated value of the attained EEDI including the calculation summary, which should contain, at a minimum, each value of the calculation parameters and the calculation process used to determine the attained EEDI; and

 

.7              calculated values of the attained EEDI^weather and f^w value (not equal to 1.0), if those values are calculated, based on the EEDI Calculation Guidelines.

 

A sample of an EEDI Technical File is provided in the appendix 1 to these Guidelines.

 

4.2.3             If dual fuel engines are installed on the ship, the C^F factor and the Specific Fuel Consumption of gas fuel should be used if gas fuel will be used as the primary fuel on the ship. In order to verify this, the following information should be provided:

 

.1                       The use of boil-off gas or capacities of the gas fuel storage tanks, and the capacities of fuel oil storage tanks.

 

.2                       Arrangements of bunkering facilities for gas fuel in the intended operational area of the ship.

 

4.2.4             The SFC of the main and auxiliary engines should be quoted from the approved NO^x Technical File and should be corrected to the value corresponding to the ISO standard reference conditions using the standard lower calorific value of the fuel oil (42,700kJ/kg), referring to ISO 15550:2002 and ISO 3046-1:2002. For the confirmation of the SFC, a copy of the approved NO^x Technical File and documented summary of the correction calculations should be submitted to the verifier. In case NO^x Technical File has not been approved at the time of the application for initial survey, the test reports provided by manufacturers should be used. In this case, at the time of the sea trial verification, a copy of the approved NO^x Technical File and documented summary of the correction calculations should be submitted to the verifier.

 

Note: SFC in the NOx Technical File are the values of a parent engine, and the use of such value of SFC for the EEDI calculation for member engines may have the following technical issues for further consideration:

 

.1                The definition of "member engines" given in NOx  Technical File is broad and specification of engines belonging to the same group/family may vary; and

 

.2                The rate of NOx emission of the parent engine is the highest in the group/family –

i.e. CO2 emission, which is in the trade-off relationship with NOx emission, can be

lower than the other engines in the group/family.

 

4.2.5             For ships to which regulation 21 of MARPOL Annex VI applies, the power curves used for the preliminary verification at the design stage should be based on reliable results of tank test.  A tank test for an individual ship may be omitted based on technical justifications such as availability of the results of tank tests for ships of the same type. In addition, omission of tank tests is acceptable for a ship for which sea trials will be carried under the condition as specified in paragraph 2.2 of the EEDI Calculation Guidelines, upon agreement of the shipowner and shipbuilder and with approval of the verifier. For ensuring the quality of tank tests, ITTC quality system should be taken into account. Model tank test should be witnessed by the verifier.

 

Note: It would be desirable in the future that an organization conducting a tank test be authorized.

 

4.2.6             The verifier may request the submitter for additional information on top of those contained in Technical File, as necessary, to examine the calculation process of the attained EEDI. The estimation of the ship speed at the design stage much depends on each shipbuilder's experiences, and it may not be practicable for any person/organization other than the shipbuilder to fully examine the technical aspects of experience-based parameters such as the roughness coefficient and wake scaling coefficient. Therefore, the preliminary verification should focus on the calculation process of the attained EEDI to ensure that it is technically sound and reasonable and follows regulation 20 of MARPOL Annex VI and the EEDI Calculation Guidelines.

 

Note 1: A possible way forward for more robust verification is to establish a standard methodology of deriving the ship speed from the outcomes of tank test, by setting standard values for experience-based correction factors such as roughness coefficient and wake scaling coefficient. In this way, ship-by-ship performance comparison could be made more objectively by excluding the possibility of arbitrary setting of experience-based parameters. If such standardization is sought, this would have an implication on how the ship speed adjustment based on sea trial  results  should  be  conducted  in  accordance  with paragraph 4.3.8 of these Guidelines.

 

Note 2: A joint industry standard to support the method and role of the verifier will be developed.

 

4.2.7             Additional information that the verifier may request the submitter to provide directly to it includes but not limited to:

 

.1               descriptions of a tank test facility; this should include the name of the facility, the particulars of tanks and towing equipment, and the records of calibration of each monitoring equipment;

 

.2               lines of a model ship and an actual ship for the verification of the appropriateness of the tank test; the lines (sheer plan, body plan and half-breadth plan) should be detailed enough to demonstrate the similarity between the model ship and the actual ship;

 

.3              lightweight of the ship and displacement table for the verification of the deadweight;

 

.4              detailed report on the method and results of the tank test; this should include at least the tank test results at sea trial condition and under the condition as specified in paragraph 2.2 of the EEDI Calculation Guidelines;

 

.5              detailed calculation process of the ship speed, which should include the estimation basis of experience-based parameters such as roughness coefficient, wake scaling coefficient; and

 

.6              reasons for exempting a tank test, if applicable; this should include lines and tank test results of the ships of same type, and the comparison of the

 

principal particulars of such ships and the ship in question. Appropriate technical justification should be provided explaining why the tank test is unnecessary.

 

4.2.8             The verifier should issue the report on the "Preliminary Verification of EEDI" after it has verified the attained EEDI at the design stage in accordance with paragraphs 4.1 and 4.2 of these Guidelines.

 

4.3                   Final verification of the attained EEDI at sea trial

 

4.3.1             Sea trial conditions should be set as conditions specified in paragraph 2.2 of the EEDI Calculation Guidelines, if possible.

 

4.3.2             Prior to the sea trial, the following documents should be submitted to the verifier: a description of the test procedure to be used for the speed trial, the final displacement table and the measured lightweight, or a copy of the survey report of deadweight, as well as a copy of NO^x Technical File as necessary. The test procedure should include, at a minimum, descriptions of all necessary items to be measured and corresponding measurement methods to be used for developing power curves under the sea trial condition.

 

4.3.3             The verifier should attend the sea trial and confirm:

 

.1               propulsion and power supply system, particulars of the engines, and other relevant items described in the EEDI Technical File;

 

.2               draught and trim;

 

.3               sea conditions;

 

.4              ship speed; and

 

.5               shaft power and RPM of the main engine.

 

4.3.4             Draught and trim should be confirmed by the draught measurements taken prior to the sea trial. The draught and trim should be as close as practical to those at the assumed conditions used for estimating the power curves.

 

4.3.5             Sea conditions should be measured in accordance with ISO 15016:2002 or the equivalent.

 

4.3.6             Ship speed should be measured in accordance with ISO 15016:2002 or the equivalent and at more than two points of which range includes the power of the main engine as specified in paragraph 2.5 of the EEDI Calculation Guidelines.

 

4.3.7             The main engine output should be measured by shaft power meter or a method which the engine manufacturer recommends and the verifier approves. Other methods may be acceptable upon agreement of the shipowner and shipbuilder and with approval of the verifier.

 

4.3.8             The submitter should develop power curves based on the measured ship speed and the measured output of the main engine at sea trial. For the development of the power curves, the submitter should calibrate the measured ship speed, if necessary, by taking into account the effects of wind, tide, waves, shallow water and displacement in accordance with

 

ISO 15016:2002² or the equivalent which may be acceptable provided that the concept of the method is transparent for the verifier and publicly available/accessible. Upon agreement with the shipowner, the submitter should submit a report on the speed trials including details of the power curve development to the verifier for verification.

   ___________________

²           An ITTC standard for this purpose will be developed.

 

4.3.9             The submitter should compare the power curves obtained as a result of the sea trial and the estimated power curves at the design stage. In case differences are observed, the attained EEDI should be recalculated, as necessary, in accordance with the following:

 

.1               for ships for which sea trial is conducted under the condition as specified in paragraph 2.2 of the EEDI Calculation Guidelines: the attained EEDI should be recalculated using the measured ship speed at sea trial at the power of the main engine as specified in paragraph 2.5 of the EEDI Calculation Guidelines; and

 

.2               for ships for which sea trial cannot be conducted under the condition as specified in paragraph 2.2 of the EEDI Calculation Guidelines: if the measured ship speed at the power of the main engine as specified in paragraph 2.5 of the EEDI Calculation Guidelines at the sea trial conditions is different from the expected ship speed on the power curve at the corresponding condition, the shipbuilder should recalculate the attained EEDI by adjusting ship speed under the condition as specified in paragraph 2.2 of the EEDI Calculation Guidelines by an appropriate correction method that is agreed by the verifier.

 

An example of possible methods of the speed adjustment is given in figure 2:

 

Note: Further consideration would be necessary for speed adjustment methodology in paragraph 4.3.9.2 of these Guidelines. One of the concerns relates to a possible situation where the power curve for sea trial condition is estimated in an excessively conservative manner (i.e. power curve is shifted in a leftward direction) with the intention to get an upward adjustment of the ship speed by making the measured ship speed at sea trial easily exceed the lower-estimated speed for sea trial condition at design stage.

 

Figure 2: An Example of Possible Ship Speed Adjustment

 

 

4.3.10         In cases where the finally determined deadweight/gross tonnage differs from the designed deadweight/gross tonnage used in the EEDI calculation during the preliminary verification, the submitter should recalculate the attained EEDI using the finally determined deadweight/gross tonnage. The finally determined gross tonnage should be confirmed in the Tonnage Certificate of the ship.

 

4.3.11         In case where the attained EEDI is calculated at the preliminary verification by using SFC based on the manufacturer's test report due to the non-availability at that time of the approved NO^x Technical File, the EEDI should be recalculated by using SFC in the approved NO^x Technical File.

 

4.3.12         The EEDI Technical File should be revised, as necessary, by taking into account the results of sea trial. Such revision should include, as applicable, the adjusted power curve based on the results of sea trial (namely, modified ship speed under the condition as specified in paragraph 2.2 of the EEDI Calculation Guidelines), the finally determined deadweight/gross tonnage and SFC described in the approved NO^x Technical File, and the recalculated attained EEDI based on these modifications.

 

4.3.13         The EEDI Technical File, if revised, should be submitted to the verifier for the confirmation that the (revised) attained EEDI is calculated in accordance with regulation 20 of MARPOL Annex VI and the EEDI Calculation Guidelines.

 

4.4                   Verification of the attained EEDI in case of major conversion

 

4.4.1             In cases where a major conversion is made to a ship, the shipowner should submit to a verifier an application for an Additional Survey with the EEDI Technical File duly revised based on the conversion made and other relevant background documents.

 

4.4.2             The background documents should include at least but are not limited to:

 

.1                 documents explaining details of the conversion;

 

.2                 EEDI parameters changed after the conversion and the technical justifications for each respective parameter;

 

.3                reasons for other changes made in the EEDI Technical File, if any; and

 

.4                calculated value of the attained EEDI with the calculation summary, which should contain, at a minimum, each value of the calculation parameters and the calculation process used to determine the attained EEDI after the conversion.

 

4.4.3             The verifier should review the revised EEDI Technical File and other documents submitted and verify the calculation process of the attained EEDI to ensure that it is technically sound and reasonable and follows regulation 20 of MARPOL Annex VI and the EEDI Calculation Guidelines.

 

4.4.4             For verification of the attained EEDI after a conversion, speed trials of the ship are required, as necessary.

 

APPENDIX 1

 

SAMPLE OF EEDI TECHNICAL FILE

 

 

1                         Data

 

1.1                   General information

 

 

1.2                   Principal particulars

 

 

1.3                   Main engine