PDF《CCS 技术通告》

7 当船舶发生《2008 年NOx 技术规则》第1.3.10 条所述由于气体供应受限的故障而使用 纯液体燃料运转时,其NOx 排放应遵循 MARPOL 附则 VI 第3.1.2 条予以免除.这表明, 如果该故障导致不能依靠气体燃料运转,船舶应采取合理的预防措施将排放减至最低限度, CCS 翻译稿?3/3 如在 II 级NOx 水平下运转(如可行) .应注意, MARPOL 附则 VI 第18 条所述气体燃料 无法获得在本规定内不被视为故障.

8 对气体或双燃料发动机,包括船上货舱蒸发汽化是气体燃料唯一来源的气体运输船上 的发动机, 一种特定情况是在建造之后、 进入干坞之前或之后、 或在船上进行修理或维护时, 此时由于安全要求规定船上不能有气体燃料或气体货物.在这些特定情况下,沿岸/港口国 应就船舶如何穿行 ECA 进行斟酌决定.比如,沿岸/港口国可以允许船舶使用液体燃料且在 没有相应 III 级NOx 控制时驶入和/或驶离干坞、修理或维修点、或驶离船厂,前提是燃料 符合 SOx ECA 的规定,或者可规定该有限航次的其他条件.

9 有可能在双燃料发动机或气体燃料发动机上,包括启动和停止、低负荷操作、操纵和 反方向操作, 使用 MARPOL 附则 VI 第13.9 条提及以及第 2.4 条定义的辅助控制装置 (ACD) . 在上述操作中,发动机运行所使用的液体燃料可能超过 MARPOL 附则 VI 附录 II 内试验循 环核准的最大值,从而导致较高的 NOx 排放.这些 ACD 应在 III 级发证时公开并在发动机 的技术案卷内标明.

1 ? 此类发动机在 II 级和 III 级条件下所采用燃料的硫含量,均受 MARPOL 附则 VI 第14 条 要求限制.? I:\CIRC\MEPC\01\MEPC.1-Circ.854 (E).docx E

4 ALBERT EMBANKMENT LONDON SE1 7SR Telephone: +44 (0)20

7735 7611 Fax: +44 (0)20

7587 3210 MEPC.1/Circ.854

1 July

2015 GUIDANCE ON THE APPLICATION OF REGULATION

13 OF MARPOL ANNEX VI TIER III REQUIREMENTS TO DUAL FUEL AND GAS-FUELLED ENGINES

1 The Marine Environment Protection Committee, at its sixty-eighth session (11 to

15 May 2015), recognizing the need for uniform application of regulation

13 of MARPOL Annex VI Tier III requirements to dual fuel and gas-fuelled engines, approved the Guidance on the application of regulation

13 of MARPOL Annex VI Tier III requirements to dual fuel and gas-fuelled engines, as set out in the annex.

2 Member Governments are invited to bring the annexed guidance to the attention of Administrations, industry, relevant shipping organizations, shipping companies and other stakeholders concerned.

3 Member Governments and international organizations are also invited to provide information on the outcome and experience gained in applying the guidance to a future session of the Committee. *** MEPC.1/Circ.854 Annex, page

1 I:\CIRC\MEPC\01\MEPC.1-Circ.854 (E).docx ANNEX GUIDANCE ON THE APPLICATION OF REGULATION

13 OF MARPOL ANNEX VI TIER III REQUIREMENTS TO DUAL FUEL AND GAS-FUELLED ENGINES

1 The NOX certification requirements of regulation

13 of MARPOL Annex VI include dual fuel engines (those which can simultaneously use both liquid and gas fuels). MEPC

66 adopted amendments to the NOX Technical Code

2008 in order to specifically cover certain specific aspects related to the NOX certification of those engines.

2 MEPC

67 adopted amendments to MARPOL Annex VI which extend the scope of the definition of a marine diesel engine as given by regulation 2.14 to include gas-fuelled engines installed on ships constructed on or after