Remerciez-le!

Remerciez @Admin pour avoir partagé cet document gratuitement, de la manière la plus simple, en partageant sur les réseaux sociaux.

Nkk guide CCopyright ? ClassNK All rights reserved CIntroduction Amendments to MARPOL Annex VI entered into force e ?ective from July concerning increasingly stringent requirements for nitrogen oxide NOX emissions from ships Under these requirements marin

CCopyright ? ClassNK All rights reserved CIntroduction Amendments to MARPOL Annex VI entered into force e ?ective from July concerning increasingly stringent requirements for nitrogen oxide NOX emissions from ships Under these requirements marine diesel engines have been subject to mandatory NOx Tier II requirements from January that are about - lower than the NOx emission limits previously set under Tier I Marine diesel engines also will be subject to NOx Tier III requirements from January in Emission Control Area ECA when engines will be required to satisfy a stricter limit that is about lower than Tier I NOx emission limits In addition ships are now subject to a maximum limit on sulfur oxide SOx emissions of m m for fuel used from January on the open sea Moreover ships have been subject to a maximum limit SOx emissions of m m from July when operating in an Emission Control Area ECA This limit is set to be further reduced to a maximum limit of just m m from January Amendments to MARPOL Annex VI adopted at IMO MEPC dated in July also set forth new restrictions on carbon dioxide CO emissions from ships that will become e ?ective from January As regulations curbing atmospheric pollution and greenhouse gas emissions grow ever stricter amid stronger calls for a greener shipping industry attention is turning to the potential of natural gas as a cleaner alternative to liquid fuel oil In theory ships using the natural gas LNG methane with the same calori ?c power as diesel oil can reduce the amount of CO emissions by as much as In addition the NOx emissions can be decreased about - through the use LNG instead of fuel heavy oil Moreover emissions of SOx and PM particulate matter are almost zero For these reasons LNG is known as a greener fuel of the future Already around vessels including many Norwegian ferries and o ?shore support ships operating in the North Sea are powered by LNG with use of the fuel expected to increase even further in the near future Particular attention needs to be given to ensuring adequate safety precautions when using natural gas as fuel in order to decrease the potential of any explosive environment risk that may arise as a result of any gas leaks onboard the ship International common safety requirements for natural gas fuelled ships were discussed at IMO MSC dated in June which resulted in the release of IMO Res MSC INTERIM GUIDELINES ON SAFETY FOR NATURAL GAS -FUELLED ENGINE INSTALLATIONS IN SHIPS Based on these interim guidelines work has been preceding on the development of the INTERNATIONAL CODE OF SAFETY FOR SHIPS USING GASES OR OTHER LOW-FLASH POINT FUELS IGF Code for approval by the IMO scheduled by as new mandatory SOLAS requirements Nippon Kaiji Kyokai ClassNK has developed guidelines entitled ??Guidelines for Gas fuelled ships ? on design safety requirements for gas fuelled ships based on the current draft of the IGF Code We hope these guidelines