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SCRUBBERS
Use of scrubbing technology as a means of cleaning higher sulphur fuels continues, while new regulations and requirements have been coming into force
MAKING A CLEAN SWEEP Classification society DNV has put together a resume of changes being introduced for shipowners and manufacturers designing exhaust gas cleaning systems (EGCS). DNV explains that the updated MEPC.340(77) 2021 Guidelines for Exhaust Gas Cleaning Systems, which were adopted in November 2021, mean shipowners and manufacturers operating or designing EGCSs will need to meet some modified requirements. The new guideline applies to all EGCS installations that are delivered to vessels or are significantly modified on or after 1 June 2022. For EGCS installations with a documented contractual delivery date prior to 1 June 2022, but where delivery was delayed due to the pandemic, for instance, the MEPC.259(68) guideline may still be applied, DNV explains. DNV advises its customers to take an active role in the EGCS business and to finalise their preparation to meet the upcoming challenges clarified in the
MEPC.340(77) guideline by: » Reviewing document templates for additionally required information to be included » Updating data processing and reporting tools to meet the new requirements » Revising specifications of the water monitoring units, reflecting the increased sampling frequency as well as the implementation of the new definition of phenanthrene equivalent » Critically reviewing the piping arrangements directing discharge from temporarily stored process water and evaluating the potential need for additional water monitoring systems. It has now been agreed that EGCSs following Scheme A approval need to perform daily SO2/CO2 emission checks as a vital parameter to monitor system compliance, DNV explains. “The Onboard Monitoring Manual (OMM) should now also include the means by which ongoing compliance would temporarily be indicated in case of failure of a single
C L E A N S H I P P I N G INTERNATIONAL – Summer 2022
