2.2.8A diagrammatic flow chart showing the options and process to comply with the requirements of a pre-certification survey for marine diesel engines intended for installation on hoard of ships is provided in figure 1 of appendix 2 of this Code.
2.2.9A model form of as EIAPP Certificate is attatched as appendix 1 to this Code.
2.3 PROCEDURES FOR CERTIFICATION OF AN ENGINE
2.3.1For those engines which have not been adjusted or modified relative to the original specification of the manufacturer, the provision of a valid EIAPP Certificate should suffice run demonstrate compliance with the applicable NOx limits.
2.3.2After installation on board, it shall he determined to what extent an engine has beers subjected to further adjustments and/or modifications which could affect the NOx emission. Therefore, the engine, after installation on board, shall be inspected for modifications and be approved using the ready means of verification required in paragraph 4 of regulation 13 of Annex VI.
2.3.3There are engines which, after pre-certification, need final adjustment or modification for performance optimization. In such a case, the engine group concept could be used to ensure that the engine still complies with the limits.
2.3.4The ship owner shall have the option of direct measurement of NOx emissions during engine operation. Such data may take the from of spot checks logged wish other engine operating data on a regular basis and over the full range of engine operation or may result from continuous monitoring and data storage. Data mast be current and corrected for ambient conditions and fuel specification, and measuring equipment must be checked for correct calibration and operation, in accordance with the procedures specified by the equipment manufacturer. Where exhaust gas after treatment devices are fined which influence the NOx emissions, the measuring point(s) must be located downstream of such devices.
2.3.5To demonstrate compliance by the direct measurement method, sufficient data shall be collected to calculate the weighted average NOx emissions in accordance with this Code.
2.3.6 Where an after treatment device is installed and needed so comply with she NOx limits, one of the options providing a ready means for verifying compliance with regulation 13 of Annex VI is direct NOx measurement and monitoring in accordance with 2.3.4. However, depending on the technical possibilities of the device used, subject to the approval of the Administration, other relevant parameters could be monitored.
2.3.7Where, for the purpose of achieving NOx compliance, an additional substance is introduced, such as ammonia, urea, steam, water, fuel additives. etc., a means of monitoring the consumption of such substance shall be provided. The Technical File shall provide sufficient information to allow a ready means of demonstrating that the consumption of such additional substances inconsistent with achieving compliance with the applicable NOx limit.
2.3.8Every marine diesel engine installed on board a ship shall be provided with a Technical File. The Technical file shall be prepared by the engine manufacturer and approved by the Administration, and required to accompany an engine throughout its marine life. The Technical File shall contain information as specified in 2.4.1.
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2.3.9If any adjustments or modifications are made to any engine after its pre-certification, a full record of such adjustments or modifications shall be recorded in the engine's record book of engine parameters.
2.3.10If all of the engines installed on board arc verified so remain within the parameters, components, and adjustable features recorded in the Technical File, the engines should be accepted as performing within the NOx limits specified in regulation 13 of Annex VI. In this case, with respect to this Code, an IAPP Certificate may then be issued to she ship.
2.3.11If any adjustment or modification is made which is outside she approved limits documented in the Technical File, the IAPP Certificate may he issued only if the overall NOx emission performance is verified to be within the required limits by: a direct on-board NOx monitoring, an approved by the Administration; a simplified on-hoard NOx measurement; or, reference so she test bed testing for the relevant engine group approval showing that the adjustments or modifications do not exceed the NOx emissions limits.
2.3.12the Administration may, at its own discretion, abbreviate or reduce all or parts of the survey on board, is accordance with this Code, to an engine which has been issued an EIAPP Certificate.
2.3.13Diagrammatic flow charts showing the options and processes to comply with the requirements of an initial, periodical and intermediate surveys for certification of marine diesel engines installed on board of ships are provided in figures 2 and 3 of appendix 2 of this Code.
2.4TECHNICAL FILE AND READY MEANS OF VERIFICATION
2.4.1To enable an Administration, or an authorized organization acting on behalf of the Administration, to perform the engine surveys described in 2.1. she Technical File required by 2.3.8 shall, at a minimum, contain she following information:
.1 identification of those components, settings and operating values of the engine which influence its exhaust emissions;
.2 identification of the full range of allowable adjustments or modifications for the components of the engine;
.3 full record of the relevant engine's performance, including the engine's rated speed and rated power;
.4 a system of ready meats of verification so verify compliance with the NOx emission limits during on-board verification surveys in accordance with chapter 6;
.5 a copy of the test report required in 5.10; and
.6 if applicable, the designation and restrictions for an engine which is a member of an engine group or engine family.
2.4.2After installation on board. bus before issuance of an IAPP Certificate to a ship, engines shall be subject so periodical and intermediate surveys to check for compliance with regulation 13 of Annex VI through the ready means of verification, which shall be specified by the manufacturer and approved
