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  1. In accordance with Technical Code requirements on control of NOx emissions from ship diesel engines that is obligatory according to the Appendix VI of the Convention for Prevention of Air Pollution by engine, and under the provisions of Protocol 1997 as amended by the Resolution MEPC.176(58) in 2008, to amend the International Convention for Prevention of Pollution from ships 1973 as modified by Protocol 1978, the Russian Maritime Register of Shipping, under the authority of Flag State, shall make pre-certification survey of ship’s diesel engines. Based on results of survey Engine International Air Pollution Prevention Certificate will be issued. Pre-certification survey will show that the engine, its components, and adjustable features and Technical File are in full compliance with Regulation 13, Annex VI of the Convention. In addition to EIAPP Certificate, a Supplement to Engine International Air Pollution Prevention Certificate with description of the engine particulars, Technical File and on-board verification procedures, as required by Annex VI of the Convention, will be issued.
  2. Ship’s crew to strictly follow requirements of Technical Code, International Convention for Prevention of Air Pollution by engines, meet ports’ requirement on emissions and change fuel to low sulphur fuel according to the procedure and fill-in check-lists.
  3. NOx emission calculation.
    • NOx emission calculations are to be entered in fuel report each month.

      Table of NOx emission calculation(as example):




       Actual emission


      Engine total operating time (hours)

      NoX calculation

      NxNOxxh/1000= kg. 

       Main Engine        
       Auxiliary Engine        
    Where ME load 100% = 1140kWh = 1000 rpm.

    Example: 80% = 912kWh = 800rpm.

    Auxiliary Engine load: wattmeter readings (main switchboard) ME/A.E. loads are recorded in engine logbook by watch keeping engineer.

    At 00:00 an average load and total operating hours to be calculated and to be recorded in engine logbook.( average per month).

    Actual emission: refer to Technical File of each engine --g/kWh Total operating time to be stated in hours.

    Calculations: Load in kWt N x NOx (actual) from Technical File x h total operating hours of engine and divided into 1000 to have emission in kilograms.
  4. Report on NOx emissions to be sent to this office every month.
  5. Report on NOx emissions to be analyzed by technical department to take corrective actions if necessary and recommendations to be sent on board to reduce NOx emissions.
  6. All calculations on NOx emissions for each vessel to be retained on board and filed at the office.
Fleet Manager Viktor Kot

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